From 5a177f3664895d010b38dacbb0e1d2ff30848acd Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sat, 5 Jan 2019 11:24:00 +0530
Subject: [PATCH 01/19] Scopes

---
 .../jm3007/learn/spring/scope/noxml/Bike.java | 14 ++++++++++
 .../jm3007/learn/spring/scope/noxml/Car.java  | 13 +++++++++
 .../learn/spring/scope/noxml/Client.java      | 26 ++++++++++++++++++
 .../spring/scope/noxml/MyConfiguration.java   | 10 +++++++
 .../jm3007/learn/spring/scope/xml/Bike.java   |  9 +++++++
 .../jm3007/learn/spring/scope/xml/Car.java    |  8 ++++++
 .../jm3007/learn/spring/scope/xml/Client.java | 27 +++++++++++++++++++
 .../learn/spring/scope/xml/spring-cfg.xml     | 22 +++++++++++++++
 8 files changed, 129 insertions(+)
 create mode 100644 src/com/jm3007/learn/spring/scope/noxml/Bike.java
 create mode 100644 src/com/jm3007/learn/spring/scope/noxml/Car.java
 create mode 100644 src/com/jm3007/learn/spring/scope/noxml/Client.java
 create mode 100644 src/com/jm3007/learn/spring/scope/noxml/MyConfiguration.java
 create mode 100644 src/com/jm3007/learn/spring/scope/xml/Bike.java
 create mode 100644 src/com/jm3007/learn/spring/scope/xml/Car.java
 create mode 100644 src/com/jm3007/learn/spring/scope/xml/Client.java
 create mode 100644 src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml

diff --git a/src/com/jm3007/learn/spring/scope/noxml/Bike.java b/src/com/jm3007/learn/spring/scope/noxml/Bike.java
new file mode 100644
index 0000000..6517774
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/noxml/Bike.java
@@ -0,0 +1,14 @@
+package com.jm3007.learn.spring.scope.noxml;
+
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Component;
+
+@Component
+@Scope("prototype")
+public class Bike {
+
+	public Bike() {
+		System.out.println("Bike is being created.");
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/scope/noxml/Car.java b/src/com/jm3007/learn/spring/scope/noxml/Car.java
new file mode 100644
index 0000000..8d09556
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/noxml/Car.java
@@ -0,0 +1,13 @@
+package com.jm3007.learn.spring.scope.noxml;
+
+import org.springframework.context.annotation.Scope;
+import org.springframework.stereotype.Component;
+
+@Component
+@Scope("singleton")
+public class Car {
+
+	public Car() {
+		System.out.println("Car is being constructed.");
+	}
+}
diff --git a/src/com/jm3007/learn/spring/scope/noxml/Client.java b/src/com/jm3007/learn/spring/scope/noxml/Client.java
new file mode 100644
index 0000000..521b77c
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/noxml/Client.java
@@ -0,0 +1,26 @@
+package com.jm3007.learn.spring.scope.noxml;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+public class Client {
+
+	public static void main(String[] args) {
+		ApplicationContext context = new AnnotationConfigApplicationContext(MyConfiguration.class);
+		Car car1 = (Car) context.getBean("car");
+		System.out.println(car1.hashCode());
+		
+		Car car2 = (Car) context.getBean("car");
+		System.out.println(car2.hashCode());
+		
+//		Car car3 = new Car();
+//		System.out.println(car3.hashCode());
+		System.out.println("-------------------------");
+		Bike bike1 = (Bike)context.getBean("bike");
+		System.out.println(bike1.hashCode());
+
+		Bike bike2 = (Bike)context.getBean("bike");
+		System.out.println(bike2.hashCode());
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/scope/noxml/MyConfiguration.java b/src/com/jm3007/learn/spring/scope/noxml/MyConfiguration.java
new file mode 100644
index 0000000..2d9d4b9
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/noxml/MyConfiguration.java
@@ -0,0 +1,10 @@
+package com.jm3007.learn.spring.scope.noxml;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan(basePackages = "com.jm3007.learn.spring.scope.noxml")
+public class MyConfiguration {
+
+}
diff --git a/src/com/jm3007/learn/spring/scope/xml/Bike.java b/src/com/jm3007/learn/spring/scope/xml/Bike.java
new file mode 100644
index 0000000..02e2e1d
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/xml/Bike.java
@@ -0,0 +1,9 @@
+package com.jm3007.learn.spring.scope.xml;
+
+public class Bike {
+
+	public Bike() {
+		System.out.println("Bike is being created.");
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/scope/xml/Car.java b/src/com/jm3007/learn/spring/scope/xml/Car.java
new file mode 100644
index 0000000..ce70e39
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/xml/Car.java
@@ -0,0 +1,8 @@
+package com.jm3007.learn.spring.scope.xml;
+
+public class Car {
+
+	public Car() {
+		System.out.println("Car is being constructed.");
+	}
+}
diff --git a/src/com/jm3007/learn/spring/scope/xml/Client.java b/src/com/jm3007/learn/spring/scope/xml/Client.java
new file mode 100644
index 0000000..9e9f036
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/xml/Client.java
@@ -0,0 +1,27 @@
+package com.jm3007.learn.spring.scope.xml;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class Client {
+
+	public static void main(String[] args) {
+		ApplicationContext context = new ClassPathXmlApplicationContext(
+				"com//jm3007//learn//spring//scope//xml//spring-cfg.xml");
+		Car car1 = (Car) context.getBean("car");
+		System.out.println(car1.hashCode());
+		
+		Car car2 = (Car) context.getBean("car");
+		System.out.println(car2.hashCode());
+		
+//		Car car3 = new Car();
+//		System.out.println(car3.hashCode());
+		System.out.println("-------------------------");
+		Bike bike1 = (Bike)context.getBean("bike");
+		System.out.println(bike1.hashCode());
+
+		Bike bike2 = (Bike)context.getBean("bike");
+		System.out.println(bike2.hashCode());
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml b/src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml
new file mode 100644
index 0000000..41b00e2
--- /dev/null
+++ b/src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:tx="http://www.springframework.org/schema/tx"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xmlns:mvc="http://www.springframework.org/schema/mvc"
+	xmlns:aop="http://www.springframework.org/schema/aop"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans
+                           http://www.springframework.org/schema/beans/spring-beans.xsd
+                           http://www.springframework.org/schema/context
+                           http://www.springframework.org/schema/context/spring-context.xsd
+                           http://www.springframework.org/schema/mvc
+                           http://www.springframework.org/schema/mvc/spring-mvc.xsd
+                           http://www.springframework.org/schema/tx
+                           http://www.springframework.org/schema/tx/spring-tx.xsd
+                           http://www.springframework.org/schema/aop
+	http://www.springframework.org/schema/aop/spring-aop.xsd">
+	
+	<bean id="car" class="com.jm3007.learn.spring.scope.xml.Car" scope="singleton" />
+	
+	<bean id="bike" class="com.jm3007.learn.spring.scope.xml.Bike" scope="prototype" />
+</beans>
\ No newline at end of file

From ca0369c33b0f66dd9f9d81363f0d30f99af7c92b Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sun, 6 Jan 2019 11:27:18 +0530
Subject: [PATCH 02/19] Bean Life cycle

---
 src/com/jm3007/learn/spring/scope/noxml/Car.java    | 13 +++++++++++++
 src/com/jm3007/learn/spring/scope/noxml/Client.java |  6 +++++-
 src/com/jm3007/learn/spring/scope/xml/Client.java   |  2 ++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/com/jm3007/learn/spring/scope/noxml/Car.java b/src/com/jm3007/learn/spring/scope/noxml/Car.java
index 8d09556..4b74dfd 100644
--- a/src/com/jm3007/learn/spring/scope/noxml/Car.java
+++ b/src/com/jm3007/learn/spring/scope/noxml/Car.java
@@ -1,5 +1,8 @@
 package com.jm3007.learn.spring.scope.noxml;
 
+import javax.annotation.PostConstruct;
+import javax.annotation.PreDestroy;
+
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
 
@@ -10,4 +13,14 @@ public class Car {
 	public Car() {
 		System.out.println("Car is being constructed.");
 	}
+	
+	@PostConstruct
+	public void doSomethingAfterBeanIsConstructed() {
+		System.out.println("Car is constructed successfully.");
+	}
+	
+	@PreDestroy
+	public void doSomethingBeforeBeanIsDestroyed() {
+		System.out.println("Car is going to be destroyed.");
+	}
 }
diff --git a/src/com/jm3007/learn/spring/scope/noxml/Client.java b/src/com/jm3007/learn/spring/scope/noxml/Client.java
index 521b77c..dd70128 100644
--- a/src/com/jm3007/learn/spring/scope/noxml/Client.java
+++ b/src/com/jm3007/learn/spring/scope/noxml/Client.java
@@ -6,7 +6,8 @@
 public class Client {
 
 	public static void main(String[] args) {
-		ApplicationContext context = new AnnotationConfigApplicationContext(MyConfiguration.class);
+		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(MyConfiguration.class);
+		
 		Car car1 = (Car) context.getBean("car");
 		System.out.println(car1.hashCode());
 		
@@ -15,12 +16,15 @@ public static void main(String[] args) {
 		
 //		Car car3 = new Car();
 //		System.out.println(car3.hashCode());
+		
 		System.out.println("-------------------------");
 		Bike bike1 = (Bike)context.getBean("bike");
 		System.out.println(bike1.hashCode());
 
 		Bike bike2 = (Bike)context.getBean("bike");
 		System.out.println(bike2.hashCode());
+		
+		context.close();
 	}
 
 }
diff --git a/src/com/jm3007/learn/spring/scope/xml/Client.java b/src/com/jm3007/learn/spring/scope/xml/Client.java
index 9e9f036..2e409e7 100644
--- a/src/com/jm3007/learn/spring/scope/xml/Client.java
+++ b/src/com/jm3007/learn/spring/scope/xml/Client.java
@@ -8,6 +8,7 @@ public class Client {
 	public static void main(String[] args) {
 		ApplicationContext context = new ClassPathXmlApplicationContext(
 				"com//jm3007//learn//spring//scope//xml//spring-cfg.xml");
+		
 		Car car1 = (Car) context.getBean("car");
 		System.out.println(car1.hashCode());
 		
@@ -16,6 +17,7 @@ public static void main(String[] args) {
 		
 //		Car car3 = new Car();
 //		System.out.println(car3.hashCode());
+		
 		System.out.println("-------------------------");
 		Bike bike1 = (Bike)context.getBean("bike");
 		System.out.println(bike1.hashCode());

From 5112e7c4bd78d6aab6328c0ed29e84e41769f14f Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sat, 12 Jan 2019 11:18:47 +0530
Subject: [PATCH 03/19] Misc concepts

---
 src/com/jm3007/learn/spring/di/xml/Car.java   |  2 ++
 .../jm3007/learn/spring/di/xml/CarApp.java    | 18 ++++++++++-
 .../jm3007/learn/spring/di/xml/spring-cfg.xml | 32 ++++++++++---------
 .../jm3007/learn/spring/scope/xml/Car.java    |  8 +++++
 .../jm3007/learn/spring/scope/xml/Client.java |  5 ++-
 .../learn/spring/scope/xml/spring-cfg.xml     |  2 +-
 src/experiment/HashCodeEqualsContract.java    | 20 ++++++++++++
 7 files changed, 69 insertions(+), 18 deletions(-)
 create mode 100644 src/experiment/HashCodeEqualsContract.java

diff --git a/src/com/jm3007/learn/spring/di/xml/Car.java b/src/com/jm3007/learn/spring/di/xml/Car.java
index 73f910d..ab501ec 100644
--- a/src/com/jm3007/learn/spring/di/xml/Car.java
+++ b/src/com/jm3007/learn/spring/di/xml/Car.java
@@ -21,4 +21,6 @@ public void setEngine(Engine engine) {
 		System.out.println("Putting engine in car.");
 		this.engine = engine;
 	}
+	
+	
 }
diff --git a/src/com/jm3007/learn/spring/di/xml/CarApp.java b/src/com/jm3007/learn/spring/di/xml/CarApp.java
index b87dafc..9ffbeee 100644
--- a/src/com/jm3007/learn/spring/di/xml/CarApp.java
+++ b/src/com/jm3007/learn/spring/di/xml/CarApp.java
@@ -9,10 +9,26 @@ public static void main(String[] args) {
 
 		ApplicationContext context = new ClassPathXmlApplicationContext(
 				"com/jm3007/learn/spring/di/xml/spring-cfg.xml");
+		System.out.println("---------------");
+		Engine engine = (Engine) context.getBean("engine");
+		System.out.println(engine.hashCode());
 
 		Car car = (Car) context.getBean("car");
 
-		car.driveTheCar();
+//		car.driveTheCar();
+		System.out.println("-------------");
+		System.out.println(car.hashCode());
+		System.out.println(car.getEngine().hashCode());
+
+		Car car2 = (Car) context.getBean("car");
+		System.out.println("-------------");
+		System.out.println(car2.hashCode());
+		System.out.println(car2.getEngine().hashCode());
+
+		System.out.println("---------------");
+		Engine engine2 = (Engine) context.getBean("engine");
+		System.out.println(engine2.hashCode());
+
 	}
 
 }
diff --git a/src/com/jm3007/learn/spring/di/xml/spring-cfg.xml b/src/com/jm3007/learn/spring/di/xml/spring-cfg.xml
index 95aa9c2..24fc206 100644
--- a/src/com/jm3007/learn/spring/di/xml/spring-cfg.xml
+++ b/src/com/jm3007/learn/spring/di/xml/spring-cfg.xml
@@ -16,22 +16,24 @@
                            http://www.springframework.org/schema/aop
 	http://www.springframework.org/schema/aop/spring-aop.xsd">
 
-	<bean id="car" class="com.jm3007.learn.spring.di.xml.Car">
+	<bean id="car" class="com.jm3007.learn.spring.di.xml.Car"
+		scope="singleton">
 		<property name="engine" ref="engine" />
 	</bean>
-	<bean id="temp" class="com.jm3007.learn.spring.di.xml.Car">
+	<!-- <bean id="temp" class="com.jm3007.learn.spring.di.xml.Car">
 		<property name="engine" ref="engine" />
-	</bean>
-	
-	
-	
-	
-	
-	
-	
-	
-	
-	
-	
-	<bean id="engine" class="com.jm3007.learn.spring.di.xml.Engine" />
+	</bean> -->
+
+
+
+
+
+
+
+
+
+
+
+	<bean id="engine" class="com.jm3007.learn.spring.di.xml.Engine"
+		scope="prototype" />
 </beans>
\ No newline at end of file
diff --git a/src/com/jm3007/learn/spring/scope/xml/Car.java b/src/com/jm3007/learn/spring/scope/xml/Car.java
index ce70e39..b44e510 100644
--- a/src/com/jm3007/learn/spring/scope/xml/Car.java
+++ b/src/com/jm3007/learn/spring/scope/xml/Car.java
@@ -5,4 +5,12 @@ public class Car {
 	public Car() {
 		System.out.println("Car is being constructed.");
 	}
+	
+	public void mysdnkksn() {
+		System.out.println("I'm ruuning after post construct...");
+	}
+	
+	public void cleanUp() {
+		System.out.println("Clean up");
+	}
 }
diff --git a/src/com/jm3007/learn/spring/scope/xml/Client.java b/src/com/jm3007/learn/spring/scope/xml/Client.java
index 2e409e7..c58d8cd 100644
--- a/src/com/jm3007/learn/spring/scope/xml/Client.java
+++ b/src/com/jm3007/learn/spring/scope/xml/Client.java
@@ -1,12 +1,13 @@
 package com.jm3007.learn.spring.scope.xml;
 
 import org.springframework.context.ApplicationContext;
+import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 
 public class Client {
 
 	public static void main(String[] args) {
-		ApplicationContext context = new ClassPathXmlApplicationContext(
+		ConfigurableApplicationContext context = new ClassPathXmlApplicationContext(
 				"com//jm3007//learn//spring//scope//xml//spring-cfg.xml");
 		
 		Car car1 = (Car) context.getBean("car");
@@ -24,6 +25,8 @@ public static void main(String[] args) {
 
 		Bike bike2 = (Bike)context.getBean("bike");
 		System.out.println(bike2.hashCode());
+		
+		context.close();
 	}
 
 }
diff --git a/src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml b/src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml
index 41b00e2..1edd6ab 100644
--- a/src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml
+++ b/src/com/jm3007/learn/spring/scope/xml/spring-cfg.xml
@@ -16,7 +16,7 @@
                            http://www.springframework.org/schema/aop
 	http://www.springframework.org/schema/aop/spring-aop.xsd">
 	
-	<bean id="car" class="com.jm3007.learn.spring.scope.xml.Car" scope="singleton" />
+	<bean id="car" class="com.jm3007.learn.spring.scope.xml.Car" destroy-method="cleanUp" init-method="mysdnkksn" scope="singleton" />
 	
 	<bean id="bike" class="com.jm3007.learn.spring.scope.xml.Bike" scope="prototype" />
 </beans>
\ No newline at end of file
diff --git a/src/experiment/HashCodeEqualsContract.java b/src/experiment/HashCodeEqualsContract.java
new file mode 100644
index 0000000..886956e
--- /dev/null
+++ b/src/experiment/HashCodeEqualsContract.java
@@ -0,0 +1,20 @@
+package experiment;
+
+public class HashCodeEqualsContract {
+	public static void main(String[] args) {
+		HashCodeEqualsContract obj1 = new HashCodeEqualsContract();
+		System.out.println(obj1);
+		System.out.println(obj1.hashCode());
+
+		System.out.println("------------");
+		HashCodeEqualsContract obj2 = new HashCodeEqualsContract();
+		System.out.println(obj2);
+		System.out.println(obj2.hashCode());
+
+		System.out.println("------------");
+		System.out.println(obj1 == obj2);
+
+		System.out.println("------------");
+		System.out.println(obj1.equals(obj2));
+	}
+}

From d4994113b3aff46d09691d1f58bf3efbb3de1b50 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sat, 12 Jan 2019 11:34:55 +0530
Subject: [PATCH 04/19] converted to Dynamic Web project

---
 WebContent/META-INF/MANIFEST.MF |  3 +++
 WebContent/WEB-INF/web.xml      | 12 ++++++++++++
 WebContent/index.html           | 10 ++++++++++
 pom.xml                         |  8 ++++++++
 4 files changed, 33 insertions(+)
 create mode 100644 WebContent/META-INF/MANIFEST.MF
 create mode 100644 WebContent/WEB-INF/web.xml
 create mode 100644 WebContent/index.html

diff --git a/WebContent/META-INF/MANIFEST.MF b/WebContent/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..5e94951
--- /dev/null
+++ b/WebContent/META-INF/MANIFEST.MF
@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Class-Path: 
+
diff --git a/WebContent/WEB-INF/web.xml b/WebContent/WEB-INF/web.xml
new file mode 100644
index 0000000..2a6b7d1
--- /dev/null
+++ b/WebContent/WEB-INF/web.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" id="WebApp_ID" version="4.0">
+  <display-name>JM3007</display-name>
+  <welcome-file-list>
+    <welcome-file>index.html</welcome-file>
+    <welcome-file>index.htm</welcome-file>
+    <welcome-file>index.jsp</welcome-file>
+    <welcome-file>default.html</welcome-file>
+    <welcome-file>default.htm</welcome-file>
+    <welcome-file>default.jsp</welcome-file>
+  </welcome-file-list>
+</web-app>
\ No newline at end of file
diff --git a/WebContent/index.html b/WebContent/index.html
new file mode 100644
index 0000000..3b926a8
--- /dev/null
+++ b/WebContent/index.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="ISO-8859-1">
+<title>Welcome!!</title>
+</head>
+<body>
+	<h1>Welcome.....</h1>
+</body>
+</html>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 6cc341c..b8218ff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,6 +6,7 @@
 	<artifactId>learn</artifactId>
 	<version>0.0.1-SNAPSHOT</version>
 	<name>JM3007</name>
+	<packaging>war</packaging>
 	<description>Learning Java Frameworks</description>
 
 	<dependencies>
@@ -29,6 +30,13 @@
 					<target>1.8</target>
 				</configuration>
 			</plugin>
+			<plugin>
+				<artifactId>maven-war-plugin</artifactId>
+				<version>3.2.1</version>
+				<configuration>
+					<warSourceDirectory>WebContent</warSourceDirectory>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 </project>
\ No newline at end of file

From e984645ad4e433ec080c4a58a8c683d5d68b3528 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sun, 13 Jan 2019 19:56:50 +0530
Subject: [PATCH 05/19] First Controller

---
 WebContent/WEB-INF/spring-config.xml          | 28 +++++++++++++++++++
 WebContent/WEB-INF/view/home.jsp              | 12 ++++++++
 WebContent/WEB-INF/web.xml                    | 14 ++++++++++
 WebContent/index.html                         | 10 -------
 pom.xml                                       |  4 +--
 .../learn/spring/web/HomeController.java      | 20 +++++++++++++
 6 files changed, 76 insertions(+), 12 deletions(-)
 create mode 100644 WebContent/WEB-INF/spring-config.xml
 create mode 100644 WebContent/WEB-INF/view/home.jsp
 delete mode 100644 WebContent/index.html
 create mode 100644 src/com/jm3007/learn/spring/web/HomeController.java

diff --git a/WebContent/WEB-INF/spring-config.xml b/WebContent/WEB-INF/spring-config.xml
new file mode 100644
index 0000000..823bc77
--- /dev/null
+++ b/WebContent/WEB-INF/spring-config.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:tx="http://www.springframework.org/schema/tx"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xmlns:mvc="http://www.springframework.org/schema/mvc"
+	xmlns:aop="http://www.springframework.org/schema/aop"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans
+                           http://www.springframework.org/schema/beans/spring-beans.xsd
+                           http://www.springframework.org/schema/context
+                           http://www.springframework.org/schema/context/spring-context.xsd
+                           http://www.springframework.org/schema/mvc
+                           http://www.springframework.org/schema/mvc/spring-mvc.xsd
+                           http://www.springframework.org/schema/tx
+                           http://www.springframework.org/schema/tx/spring-tx.xsd
+                           http://www.springframework.org/schema/aop
+	http://www.springframework.org/schema/aop/spring-aop.xsd">
+
+	<context:component-scan
+		base-package="com.jm3007.learn.spring.web" />
+	<mvc:annotation-driven />
+
+	<bean
+		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
+		<property name="prefix" value="/WEB-INF/view/" />
+		<property name="suffix" value=".jsp" />
+	</bean>
+</beans>
\ No newline at end of file
diff --git a/WebContent/WEB-INF/view/home.jsp b/WebContent/WEB-INF/view/home.jsp
new file mode 100644
index 0000000..5e50e2b
--- /dev/null
+++ b/WebContent/WEB-INF/view/home.jsp
@@ -0,0 +1,12 @@
+<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
+    pageEncoding="ISO-8859-1"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="ISO-8859-1">
+<title>Welcome!!!</title>
+</head>
+<body>
+<h1>I'm here............. Ok</h1>
+</body>
+</html>
\ No newline at end of file
diff --git a/WebContent/WEB-INF/web.xml b/WebContent/WEB-INF/web.xml
index 2a6b7d1..22ee770 100644
--- a/WebContent/WEB-INF/web.xml
+++ b/WebContent/WEB-INF/web.xml
@@ -9,4 +9,18 @@
     <welcome-file>default.htm</welcome-file>
     <welcome-file>default.jsp</welcome-file>
   </welcome-file-list>
+  
+  <servlet>
+		<servlet-name>dispatcher</servlet-name>
+		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
+		<init-param>
+			<param-name>contextConfigLocation</param-name>
+			<param-value>/WEB-INF/spring-config.xml</param-value>
+		</init-param>
+	</servlet>
+
+	<servlet-mapping>
+		<servlet-name>dispatcher</servlet-name>
+		<url-pattern>/</url-pattern>
+	</servlet-mapping>
 </web-app>
\ No newline at end of file
diff --git a/WebContent/index.html b/WebContent/index.html
deleted file mode 100644
index 3b926a8..0000000
--- a/WebContent/index.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="ISO-8859-1">
-<title>Welcome!!</title>
-</head>
-<body>
-	<h1>Welcome.....</h1>
-</body>
-</html>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index b8218ff..2733012 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.jm3007</groupId>
-	<artifactId>learn</artifactId>
+	<artifactId>JM3007</artifactId>
 	<version>0.0.1-SNAPSHOT</version>
 	<name>JM3007</name>
 	<packaging>war</packaging>
@@ -12,7 +12,7 @@
 	<dependencies>
 		<dependency>
 			<groupId>org.springframework</groupId>
-			<artifactId>spring-context</artifactId>
+			<artifactId>spring-webmvc</artifactId>
 			<version>5.1.3.RELEASE</version>
 		</dependency>
 	</dependencies>
diff --git a/src/com/jm3007/learn/spring/web/HomeController.java b/src/com/jm3007/learn/spring/web/HomeController.java
new file mode 100644
index 0000000..2eae058
--- /dev/null
+++ b/src/com/jm3007/learn/spring/web/HomeController.java
@@ -0,0 +1,20 @@
+package com.jm3007.learn.spring.web;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+@Controller
+public class HomeController {
+
+	@RequestMapping(value = "/", method = RequestMethod.GET)
+	public String showHomePage() {
+		return "home";
+	}
+	
+	@RequestMapping(value = "/login", method = RequestMethod.GET)
+	public String ffklmnalkf() {
+		System.out.println("Isdmlkdsmfl");
+		return "home";
+	}
+}

From 1f8dc8866ddb3efc26c910e4d4f9205b9771f1c3 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Tue, 15 Jan 2019 11:48:19 +0530
Subject: [PATCH 06/19] Revision

---
 .../spring/revision/annotationway/AirBag.java | 15 ++++++++
 .../spring/revision/annotationway/Car.java    | 36 +++++++++++++++++++
 .../spring/revision/annotationway/Client.java | 13 +++++++
 .../spring/revision/annotationway/Engine.java | 15 ++++++++
 .../revision/annotationway/MusicSystem.java   | 15 ++++++++
 .../revision/annotationway/SrpingConfig.java  |  8 +++++
 6 files changed, 102 insertions(+)
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/AirBag.java
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/Car.java
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/Client.java
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/Engine.java
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java

diff --git a/src/com/jm3007/learn/spring/revision/annotationway/AirBag.java b/src/com/jm3007/learn/spring/revision/annotationway/AirBag.java
new file mode 100644
index 0000000..b0cf913
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/AirBag.java
@@ -0,0 +1,15 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class AirBag {
+
+	public AirBag() {
+		System.out.println("AirBag is bieng constructed...");
+	}
+
+	public void acivate() {
+		System.out.println("AirBag has been activated.");
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/Car.java b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
new file mode 100644
index 0000000..ec89f5b
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
@@ -0,0 +1,36 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component("myCar")
+public class Car {
+
+	private Engine engine;
+
+	// dependency injection - thru field
+	@Autowired
+	private MusicSystem musicSystem;
+
+	private AirBag airBag;
+
+	// dependency injection - thru constructor
+	@Autowired
+	public Car(Engine engine) {
+		this.engine = engine;
+		System.out.println("Car is being constructed...");
+	}
+
+	public void driveTheCar() {
+		engine.start();
+		airBag.acivate();
+		System.out.println("Driving the car.");
+		musicSystem.playMusic();
+	}
+
+	// dependency injection - thru setter
+	@Autowired
+	public void setAirBag(AirBag airBag) {
+		this.airBag = airBag;
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/Client.java b/src/com/jm3007/learn/spring/revision/annotationway/Client.java
new file mode 100644
index 0000000..52b6cee
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/Client.java
@@ -0,0 +1,13 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+public class Client {
+	public static void main(String[] args) {
+//		Car car = new Car();
+		ApplicationContext context = new AnnotationConfigApplicationContext(SrpingConfig.class);
+		Car car = (Car) context.getBean("myCar");
+		car.driveTheCar();
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/Engine.java b/src/com/jm3007/learn/spring/revision/annotationway/Engine.java
new file mode 100644
index 0000000..6dd53ce
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/Engine.java
@@ -0,0 +1,15 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class Engine {
+
+	public Engine() {
+		System.out.println("Engine is being constructed...");
+	}
+
+	public void start() {
+		System.out.println("Engine started.");
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java b/src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java
new file mode 100644
index 0000000..b62d9ff
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java
@@ -0,0 +1,15 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class MusicSystem {
+
+	public MusicSystem() {
+		System.out.println("MusicSystem is being constructed...");
+	}
+
+	public void playMusic() {
+		System.out.println("Playing music.");
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java b/src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java
new file mode 100644
index 0000000..02433ba
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java
@@ -0,0 +1,8 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.context.annotation.ComponentScan;
+
+@ComponentScan(basePackages = "com.jm3007.learn.spring.revision.annotationway")
+public class SrpingConfig {
+
+}

From 982664ccb771ad12caec70e89492eaf201b569c6 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Tue, 15 Jan 2019 12:03:44 +0530
Subject: [PATCH 07/19] DIP

---
 .../learn/spring/revision/annotationway/Car.java |  2 ++
 .../revision/annotationway/MusicSystem.java      | 14 ++------------
 .../annotationway/PhilipsMusicSystem.java        | 16 ++++++++++++++++
 .../revision/annotationway/SonyMusicSystem.java  | 16 ++++++++++++++++
 4 files changed, 36 insertions(+), 12 deletions(-)
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/PhilipsMusicSystem.java
 create mode 100644 src/com/jm3007/learn/spring/revision/annotationway/SonyMusicSystem.java

diff --git a/src/com/jm3007/learn/spring/revision/annotationway/Car.java b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
index ec89f5b..d51bd4f 100644
--- a/src/com/jm3007/learn/spring/revision/annotationway/Car.java
+++ b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
@@ -1,6 +1,7 @@
 package com.jm3007.learn.spring.revision.annotationway;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.stereotype.Component;
 
 @Component("myCar")
@@ -9,6 +10,7 @@ public class Car {
 	private Engine engine;
 
 	// dependency injection - thru field
+	@Qualifier("sony")
 	@Autowired
 	private MusicSystem musicSystem;
 
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java b/src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java
index b62d9ff..56ab24a 100644
--- a/src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java
+++ b/src/com/jm3007/learn/spring/revision/annotationway/MusicSystem.java
@@ -1,15 +1,5 @@
 package com.jm3007.learn.spring.revision.annotationway;
 
-import org.springframework.stereotype.Component;
-
-@Component
-public class MusicSystem {
-
-	public MusicSystem() {
-		System.out.println("MusicSystem is being constructed...");
-	}
-
-	public void playMusic() {
-		System.out.println("Playing music.");
-	}
+public interface MusicSystem {
+	public void playMusic();
 }
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/PhilipsMusicSystem.java b/src/com/jm3007/learn/spring/revision/annotationway/PhilipsMusicSystem.java
new file mode 100644
index 0000000..9e635f8
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/PhilipsMusicSystem.java
@@ -0,0 +1,16 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.stereotype.Component;
+
+@Component("philips")
+public class PhilipsMusicSystem implements MusicSystem {
+
+	public PhilipsMusicSystem() {
+		System.out.println(this.getClass().getSimpleName() + " is being constructued.");
+	}
+
+	public void playMusic() {
+		System.out.println("Playing music on " + this.getClass().getSimpleName());
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/SonyMusicSystem.java b/src/com/jm3007/learn/spring/revision/annotationway/SonyMusicSystem.java
new file mode 100644
index 0000000..a958fc0
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/annotationway/SonyMusicSystem.java
@@ -0,0 +1,16 @@
+package com.jm3007.learn.spring.revision.annotationway;
+
+import org.springframework.stereotype.Component;
+
+@Component("sony")
+public class SonyMusicSystem implements MusicSystem {
+
+	public SonyMusicSystem() {
+		System.out.println(this.getClass().getSimpleName() + " is being constructued.");
+	}
+
+	public void playMusic() {
+		System.out.println("Playing music on " + this.getClass().getSimpleName());
+	}
+
+}

From a3f9099345b5b62dd21a1872abe1be254bbcb119 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Tue, 15 Jan 2019 12:10:15 +0530
Subject: [PATCH 08/19] Beans Scope

---
 .../learn/spring/revision/annotationway/Car.java   |  3 +++
 .../spring/revision/annotationway/Client.java      | 14 ++++++++++++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/com/jm3007/learn/spring/revision/annotationway/Car.java b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
index d51bd4f..665b50c 100644
--- a/src/com/jm3007/learn/spring/revision/annotationway/Car.java
+++ b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
@@ -2,9 +2,12 @@
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
 
 @Component("myCar")
+//@Scope("singleton")
+@Scope("prototype")
 public class Car {
 
 	private Engine engine;
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/Client.java b/src/com/jm3007/learn/spring/revision/annotationway/Client.java
index 52b6cee..8797a91 100644
--- a/src/com/jm3007/learn/spring/revision/annotationway/Client.java
+++ b/src/com/jm3007/learn/spring/revision/annotationway/Client.java
@@ -7,7 +7,17 @@ public class Client {
 	public static void main(String[] args) {
 //		Car car = new Car();
 		ApplicationContext context = new AnnotationConfigApplicationContext(SrpingConfig.class);
-		Car car = (Car) context.getBean("myCar");
-		car.driveTheCar();
+		Car car1 = (Car) context.getBean("myCar");
+		car1.driveTheCar();
+		
+		
+		Car car2 = (Car) context.getBean("myCar");
+		
+		
+		System.out.println("--------------");
+		System.out.println(car1.hashCode());
+		System.out.println(car2.hashCode());
+		
+		
 	}
 }

From 4b5f9a8433fa03bbd70eacf0b3d47e65ff043dd2 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Tue, 15 Jan 2019 12:32:46 +0530
Subject: [PATCH 09/19] XML way

---
 .../learn/spring/revision/xmlway/AirBag.java  | 12 ++++++
 .../learn/spring/revision/xmlway/Car.java     | 30 +++++++++++++
 .../learn/spring/revision/xmlway/Client.java  | 21 ++++++++++
 .../learn/spring/revision/xmlway/Engine.java  | 12 ++++++
 .../spring/revision/xmlway/MusicSystem.java   |  5 +++
 .../revision/xmlway/PhilipsMusicSystem.java   | 13 ++++++
 .../revision/xmlway/SonyMusicSystem.java      | 13 ++++++
 .../spring/revision/xmlway/spring-cfg.xml     | 42 +++++++++++++++++++
 8 files changed, 148 insertions(+)
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/AirBag.java
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/Car.java
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/Client.java
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/Engine.java
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/MusicSystem.java
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/PhilipsMusicSystem.java
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/SonyMusicSystem.java
 create mode 100644 src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml

diff --git a/src/com/jm3007/learn/spring/revision/xmlway/AirBag.java b/src/com/jm3007/learn/spring/revision/xmlway/AirBag.java
new file mode 100644
index 0000000..b41adc6
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/AirBag.java
@@ -0,0 +1,12 @@
+package com.jm3007.learn.spring.revision.xmlway;
+
+public class AirBag {
+
+	public AirBag() {
+		System.out.println("AirBag is bieng constructed...");
+	}
+
+	public void acivate() {
+		System.out.println("AirBag has been activated.");
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/Car.java b/src/com/jm3007/learn/spring/revision/xmlway/Car.java
new file mode 100644
index 0000000..5bd05c1
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/Car.java
@@ -0,0 +1,30 @@
+package com.jm3007.learn.spring.revision.xmlway;
+
+public class Car {
+
+	private Engine engine;
+	
+	private AirBag airBag;
+	
+	private MusicSystem musicSystem;
+
+	public void setMusicSystem(MusicSystem musicSystem) {
+		this.musicSystem = musicSystem;
+	}
+
+	public Car(Engine engine) {
+		this.engine = engine;
+		System.out.println("Car is being constructed...");
+	}
+
+	public void driveTheCar() {
+		engine.start();
+		airBag.acivate();
+		System.out.println("Driving the car.");
+		musicSystem.playMusic();
+	}
+
+	public void setAirBag(AirBag airBag) {
+		this.airBag = airBag;
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/Client.java b/src/com/jm3007/learn/spring/revision/xmlway/Client.java
new file mode 100644
index 0000000..ccc7cc6
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/Client.java
@@ -0,0 +1,21 @@
+package com.jm3007.learn.spring.revision.xmlway;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+public class Client {
+	public static void main(String[] args) {
+		ApplicationContext context = new ClassPathXmlApplicationContext(
+				"com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml");
+
+		Car car1 = (Car) context.getBean("car");
+		car1.driveTheCar();
+
+		Car car2 = (Car) context.getBean("car");
+
+		System.out.println("----------------");
+		System.out.println(car1.hashCode());
+		System.out.println(car2.hashCode());
+
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/Engine.java b/src/com/jm3007/learn/spring/revision/xmlway/Engine.java
new file mode 100644
index 0000000..b7a4eb9
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/Engine.java
@@ -0,0 +1,12 @@
+package com.jm3007.learn.spring.revision.xmlway;
+
+public class Engine {
+
+	public Engine() {
+		System.out.println("Engine is being constructed...");
+	}
+
+	public void start() {
+		System.out.println("Engine started.");
+	}
+}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/MusicSystem.java b/src/com/jm3007/learn/spring/revision/xmlway/MusicSystem.java
new file mode 100644
index 0000000..83110fc
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/MusicSystem.java
@@ -0,0 +1,5 @@
+package com.jm3007.learn.spring.revision.xmlway;
+
+public interface MusicSystem {
+	public void playMusic();
+}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/PhilipsMusicSystem.java b/src/com/jm3007/learn/spring/revision/xmlway/PhilipsMusicSystem.java
new file mode 100644
index 0000000..a505110
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/PhilipsMusicSystem.java
@@ -0,0 +1,13 @@
+package com.jm3007.learn.spring.revision.xmlway;
+
+public class PhilipsMusicSystem implements MusicSystem {
+
+	public PhilipsMusicSystem() {
+		System.out.println(this.getClass().getSimpleName() + " is being constructued.");
+	}
+
+	public void playMusic() {
+		System.out.println("Playing music on " + this.getClass().getSimpleName());
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/SonyMusicSystem.java b/src/com/jm3007/learn/spring/revision/xmlway/SonyMusicSystem.java
new file mode 100644
index 0000000..e20c714
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/SonyMusicSystem.java
@@ -0,0 +1,13 @@
+package com.jm3007.learn.spring.revision.xmlway;
+
+public class SonyMusicSystem implements MusicSystem {
+
+	public SonyMusicSystem() {
+		System.out.println(this.getClass().getSimpleName() + " is being constructued.");
+	}
+
+	public void playMusic() {
+		System.out.println("Playing music on " + this.getClass().getSimpleName());
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml b/src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml
new file mode 100644
index 0000000..7b8259b
--- /dev/null
+++ b/src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:tx="http://www.springframework.org/schema/tx"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xmlns:mvc="http://www.springframework.org/schema/mvc"
+	xmlns:aop="http://www.springframework.org/schema/aop"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans
+                           http://www.springframework.org/schema/beans/spring-beans.xsd
+                           http://www.springframework.org/schema/context
+                           http://www.springframework.org/schema/context/spring-context.xsd
+                           http://www.springframework.org/schema/mvc
+                           http://www.springframework.org/schema/mvc/spring-mvc.xsd
+                           http://www.springframework.org/schema/tx
+                           http://www.springframework.org/schema/tx/spring-tx.xsd
+                           http://www.springframework.org/schema/aop
+	http://www.springframework.org/schema/aop/spring-aop.xsd">
+
+	<bean id="car" class="com.jm3007.learn.spring.revision.xmlway.Car"
+		scope="singleton">
+		<constructor-arg ref="engine" name="engine" />
+		<property name="airBag" ref="airBag" />
+		<property name="musicSystem" ref="philips" />
+	</bean>
+
+	<bean id="engine"
+		class="com.jm3007.learn.spring.revision.xmlway.Engine"
+		scope="singleton" />
+
+
+	<bean id="airBag"
+		class="com.jm3007.learn.spring.revision.xmlway.AirBag"
+		scope="singleton" />
+		
+		<bean id="sony"
+		class="com.jm3007.learn.spring.revision.xmlway.SonyMusicSystem"
+		scope="singleton" />
+		
+		<bean id="philips"
+		class="com.jm3007.learn.spring.revision.xmlway.PhilipsMusicSystem"
+		scope="singleton" />
+</beans>
\ No newline at end of file

From c811364c05199fe763f35b92cdbe1be5648ef679 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Tue, 15 Jan 2019 12:47:29 +0530
Subject: [PATCH 10/19] SpEL

---
 src/car.properties                             |  2 +-
 .../spring/revision/annotationway/Car.java     |  9 ++++++++-
 .../revision/annotationway/SrpingConfig.java   |  2 ++
 .../learn/spring/revision/xmlway/Car.java      | 18 +++++++++++++++---
 .../spring/revision/xmlway/spring-cfg.xml      | 13 +++++++++----
 5 files changed, 35 insertions(+), 9 deletions(-)

diff --git a/src/car.properties b/src/car.properties
index 01d7180..6369f6f 100644
--- a/src/car.properties
+++ b/src/car.properties
@@ -1,2 +1,2 @@
 color=Green
-speed=200
\ No newline at end of file
+speed=100
\ No newline at end of file
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/Car.java b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
index 665b50c..3959db9 100644
--- a/src/com/jm3007/learn/spring/revision/annotationway/Car.java
+++ b/src/com/jm3007/learn/spring/revision/annotationway/Car.java
@@ -2,6 +2,7 @@
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
 
@@ -10,6 +11,12 @@
 @Scope("prototype")
 public class Car {
 
+	@Value("${color}")
+	private String color;
+
+	@Value("${speed}")
+	private double speed;
+
 	private Engine engine;
 
 	// dependency injection - thru field
@@ -29,7 +36,7 @@ public Car(Engine engine) {
 	public void driveTheCar() {
 		engine.start();
 		airBag.acivate();
-		System.out.println("Driving the car.");
+		System.out.println("Driving the " + color + " car at speed of " + speed + " KM/H.");
 		musicSystem.playMusic();
 	}
 
diff --git a/src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java b/src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java
index 02433ba..ef6bf7e 100644
--- a/src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java
+++ b/src/com/jm3007/learn/spring/revision/annotationway/SrpingConfig.java
@@ -1,8 +1,10 @@
 package com.jm3007.learn.spring.revision.annotationway;
 
 import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.PropertySource;
 
 @ComponentScan(basePackages = "com.jm3007.learn.spring.revision.annotationway")
+@PropertySource(value = "classpath:car.properties")
 public class SrpingConfig {
 
 }
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/Car.java b/src/com/jm3007/learn/spring/revision/xmlway/Car.java
index 5bd05c1..80aea42 100644
--- a/src/com/jm3007/learn/spring/revision/xmlway/Car.java
+++ b/src/com/jm3007/learn/spring/revision/xmlway/Car.java
@@ -2,10 +2,18 @@
 
 public class Car {
 
+	private String color;
+
+	private double speed;
+
+	public void setSpeed(double speed) {
+		this.speed = speed;
+	}
+
 	private Engine engine;
-	
+
 	private AirBag airBag;
-	
+
 	private MusicSystem musicSystem;
 
 	public void setMusicSystem(MusicSystem musicSystem) {
@@ -20,10 +28,14 @@ public Car(Engine engine) {
 	public void driveTheCar() {
 		engine.start();
 		airBag.acivate();
-		System.out.println("Driving the car.");
+		System.out.println("Driving the " + color + " car at speed of " + speed + " KM/H.");
 		musicSystem.playMusic();
 	}
 
+	public void setColor(String color) {
+		this.color = color;
+	}
+
 	public void setAirBag(AirBag airBag) {
 		this.airBag = airBag;
 	}
diff --git a/src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml b/src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml
index 7b8259b..cbf171e 100644
--- a/src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml
+++ b/src/com/jm3007/learn/spring/revision/xmlway/spring-cfg.xml
@@ -16,11 +16,16 @@
                            http://www.springframework.org/schema/aop
 	http://www.springframework.org/schema/aop/spring-aop.xsd">
 
+	<context:property-placeholder
+		location="classpath:car.properties" />
+
 	<bean id="car" class="com.jm3007.learn.spring.revision.xmlway.Car"
 		scope="singleton">
 		<constructor-arg ref="engine" name="engine" />
 		<property name="airBag" ref="airBag" />
 		<property name="musicSystem" ref="philips" />
+		<property name="color" value="${color}" />
+		<property name="speed" value="${speed}" />
 	</bean>
 
 	<bean id="engine"
@@ -31,12 +36,12 @@
 	<bean id="airBag"
 		class="com.jm3007.learn.spring.revision.xmlway.AirBag"
 		scope="singleton" />
-		
-		<bean id="sony"
+
+	<bean id="sony"
 		class="com.jm3007.learn.spring.revision.xmlway.SonyMusicSystem"
 		scope="singleton" />
-		
-		<bean id="philips"
+
+	<bean id="philips"
 		class="com.jm3007.learn.spring.revision.xmlway.PhilipsMusicSystem"
 		scope="singleton" />
 </beans>
\ No newline at end of file

From ae407c0eb9126bdd660717281c681a43c2d96f3f Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sat, 19 Jan 2019 12:26:41 +0530
Subject: [PATCH 11/19] Spring MVC

---
 WebContent/WEB-INF/view/home.jsp              |  4 +
 WebContent/WEB-INF/view/login.jsp             | 16 ++++
 WebContent/WEB-INF/view/user-profile.jsp      | 18 +++++
 WebContent/WEB-INF/view/user-registration.jsp | 57 +++++++++++++++
 .../learn/spring/web/HomeController.java      |  6 --
 .../learn/spring/web/ItemController.java      | 29 ++++++++
 .../learn/spring/web/LoginController.java     | 47 ++++++++++++
 src/com/jm3007/learn/spring/web/User.java     | 73 +++++++++++++++++++
 .../learn/spring/web/UserController.java      | 24 ++++++
 9 files changed, 268 insertions(+), 6 deletions(-)
 create mode 100644 WebContent/WEB-INF/view/login.jsp
 create mode 100644 WebContent/WEB-INF/view/user-profile.jsp
 create mode 100644 WebContent/WEB-INF/view/user-registration.jsp
 create mode 100644 src/com/jm3007/learn/spring/web/ItemController.java
 create mode 100644 src/com/jm3007/learn/spring/web/LoginController.java
 create mode 100644 src/com/jm3007/learn/spring/web/User.java
 create mode 100644 src/com/jm3007/learn/spring/web/UserController.java

diff --git a/WebContent/WEB-INF/view/home.jsp b/WebContent/WEB-INF/view/home.jsp
index 5e50e2b..704cb09 100644
--- a/WebContent/WEB-INF/view/home.jsp
+++ b/WebContent/WEB-INF/view/home.jsp
@@ -8,5 +8,9 @@
 </head>
 <body>
 <h1>I'm here............. Ok</h1>
+<a href="login">Login</a>
+
+<h1>Users</h1>
+<a href="users/show-form">Register</a>
 </body>
 </html>
\ No newline at end of file
diff --git a/WebContent/WEB-INF/view/login.jsp b/WebContent/WEB-INF/view/login.jsp
new file mode 100644
index 0000000..960616d
--- /dev/null
+++ b/WebContent/WEB-INF/view/login.jsp
@@ -0,0 +1,16 @@
+<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
+	pageEncoding="ISO-8859-1"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="ISO-8859-1">
+<title>Login page</title>
+</head>
+<body>
+	<form action="loginSpringWay" method="get">
+		<input type="text" name="username" placeholder="Enter username" /> <input
+			type="password" name="password" placeholder="Enter password" /> <input
+			type="submit" value="Login" />
+	</form>
+</body>
+</html>
\ No newline at end of file
diff --git a/WebContent/WEB-INF/view/user-profile.jsp b/WebContent/WEB-INF/view/user-profile.jsp
new file mode 100644
index 0000000..c80cfa1
--- /dev/null
+++ b/WebContent/WEB-INF/view/user-profile.jsp
@@ -0,0 +1,18 @@
+<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
+	pageEncoding="ISO-8859-1"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="ISO-8859-1">
+<title>User Profile</title>
+</head>
+<body>
+	${user.name}
+	<br /> ${user.age}
+	<br /> ${user.gender}
+	<br />${user.country}
+	<br />${user.courses}
+	<br />${user.graduated}
+	<br />${user.feedback}
+</body>
+</html>
\ No newline at end of file
diff --git a/WebContent/WEB-INF/view/user-registration.jsp b/WebContent/WEB-INF/view/user-registration.jsp
new file mode 100644
index 0000000..e1415d6
--- /dev/null
+++ b/WebContent/WEB-INF/view/user-registration.jsp
@@ -0,0 +1,57 @@
+<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="ISO-8859-1">
+<title>User Registration Form</title>
+</head>
+<body>
+<h1>${msg}</h1>
+	<form:form action="process-user-registration" method="post" modelAttribute="user">
+		<table border="1px">
+			<tr>
+				<td>Name</td>
+				<td><form:input path="name"/> </td>
+			</tr>
+			<tr>
+				<td>Age</td>
+				<td><form:input path="age"/> </td>
+			</tr>
+			<tr>
+				<td>Gender</td>
+				<td><form:radiobutton value="Male" path="gender"/> Male &nbsp; 
+				<form:radiobutton value="Female" path="gender"/> Female </td>
+			</tr>
+				<tr>
+				<td>Country</td>
+				<td><form:select path="country">
+						<form:option value="IND" label="India" />
+						<form:option value="AUS" label="Australia" />
+						<form:option value="US" label="Unitate States" />
+					</form:select></td>
+			</tr>
+			<tr>
+				<td>Courses</td>
+				<td>
+				<form:checkbox path="courses" value="M1"/> Core Java &nbsp; 
+				<form:checkbox path="courses" value="M2"/> Advance Java &nbsp;
+				<form:checkbox path="courses" value="M3"/> Java Frameworks &nbsp;  
+				</td>
+			</tr>
+			<tr>
+				<td>Are you graduate?</td>
+				<td><form:checkbox path="graduated" /> </td>
+			</tr>
+			<tr>
+				<td>Feedback</td>
+				<td><form:textarea path="feedback" cols="20" rows="3" /> </td>
+			</tr>
+			<tr>
+				<td><input type="reset" value="Reset" /> </td>
+				<td><input type="submit" value="Submit" /> </td>
+			</tr>
+		</table>
+
+	</form:form>
+</body>
+</html>
\ No newline at end of file
diff --git a/src/com/jm3007/learn/spring/web/HomeController.java b/src/com/jm3007/learn/spring/web/HomeController.java
index 2eae058..da020c5 100644
--- a/src/com/jm3007/learn/spring/web/HomeController.java
+++ b/src/com/jm3007/learn/spring/web/HomeController.java
@@ -11,10 +11,4 @@ public class HomeController {
 	public String showHomePage() {
 		return "home";
 	}
-	
-	@RequestMapping(value = "/login", method = RequestMethod.GET)
-	public String ffklmnalkf() {
-		System.out.println("Isdmlkdsmfl");
-		return "home";
-	}
 }
diff --git a/src/com/jm3007/learn/spring/web/ItemController.java b/src/com/jm3007/learn/spring/web/ItemController.java
new file mode 100644
index 0000000..a393f08
--- /dev/null
+++ b/src/com/jm3007/learn/spring/web/ItemController.java
@@ -0,0 +1,29 @@
+package com.jm3007.learn.spring.web;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+@RequestMapping("/items")
+public class ItemController {
+
+	private Map<String, String> items = new HashMap<>();
+
+	public ItemController() {
+		items.put("1001", "Item One");
+		items.put("1002", "Item Two");
+		items.put("1003", "Item Three");
+		items.put("1004", "Item Four");
+	}
+
+	@RequestMapping(value = "/name/{id}/fun", method = RequestMethod.GET)
+	public @ResponseBody String getItemNameById(@PathVariable("id") String myId) {
+		return items.get(myId);
+	}
+}
diff --git a/src/com/jm3007/learn/spring/web/LoginController.java b/src/com/jm3007/learn/spring/web/LoginController.java
new file mode 100644
index 0000000..43884a3
--- /dev/null
+++ b/src/com/jm3007/learn/spring/web/LoginController.java
@@ -0,0 +1,47 @@
+package com.jm3007.learn.spring.web;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@Controller
+public class LoginController {
+
+	@RequestMapping(value = "/login", method = RequestMethod.GET)
+	public String showLoginPage() {
+		return "login";
+	}
+
+	@RequestMapping(value = "/login", method = RequestMethod.POST)
+	public @ResponseBody String processLogin(HttpServletRequest request) {
+		String un = request.getParameter("username");
+		String pass = request.getParameter("password");
+		if (un.equalsIgnoreCase(pass)) {
+			return "Welcome, " + un;
+		}
+		return "Login failed.";
+	}
+
+	@RequestMapping(value = "/loginSpringWay", method = RequestMethod.POST)
+	public @ResponseBody String processLoginSpringWay(@RequestParam("username") String un,
+			@RequestParam("password") String pass) {
+		if (un.equalsIgnoreCase(pass)) {
+			return "Welcome, " + un;
+		}
+		return "Login failed.";
+	}
+
+	@RequestMapping(value = "/loginSpringWay", method = RequestMethod.GET)
+	public @ResponseBody String processLoginSpringWayGET(@RequestParam("username") String un,
+			@RequestParam("password") String pass) {
+		if (un.equalsIgnoreCase(pass)) {
+			return "Welcome, " + un;
+		}
+		return "Login failed.";
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/web/User.java b/src/com/jm3007/learn/spring/web/User.java
new file mode 100644
index 0000000..12b62ff
--- /dev/null
+++ b/src/com/jm3007/learn/spring/web/User.java
@@ -0,0 +1,73 @@
+package com.jm3007.learn.spring.web;
+
+public class User {
+	private String name;
+
+	private int age;
+
+	private String gender;
+
+	private String country;
+	
+	private String[] courses;
+	
+	private boolean graduated;
+	
+	private String feedback;
+
+	public String[] getCourses() {
+		return courses;
+	}
+
+	public void setCourses(String[] courses) {
+		this.courses = courses;
+	}
+
+	public boolean isGraduated() {
+		return graduated;
+	}
+
+	public void setGraduated(boolean graduated) {
+		this.graduated = graduated;
+	}
+
+	public String getFeedback() {
+		return feedback;
+	}
+
+	public void setFeedback(String feedback) {
+		this.feedback = feedback;
+	}
+
+	public String getCountry() {
+		return country;
+	}
+
+	public void setCountry(String country) {
+		this.country = country;
+	}
+
+	public String getGender() {
+		return gender;
+	}
+
+	public void setGender(String gender) {
+		this.gender = gender;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}
diff --git a/src/com/jm3007/learn/spring/web/UserController.java b/src/com/jm3007/learn/spring/web/UserController.java
new file mode 100644
index 0000000..0de247f
--- /dev/null
+++ b/src/com/jm3007/learn/spring/web/UserController.java
@@ -0,0 +1,24 @@
+package com.jm3007.learn.spring.web;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.ModelAttribute;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+@Controller
+@RequestMapping("/users")
+public class UserController {
+
+	@RequestMapping(value = "/show-form", method = RequestMethod.GET)
+	public String showUserRegistrationForm(Model model) {
+		model.addAttribute("user", new User());
+		model.addAttribute("msg", "Hello How are you");
+		return "user-registration";
+	}
+
+	@RequestMapping(value = "/process-user-registration", method = RequestMethod.POST)
+	public String processUserRegistration(@ModelAttribute("user") User u) {
+		return "user-profile";
+	}
+}

From 056157e8266e681018c396320a84862a3cdb0f9f Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sun, 20 Jan 2019 12:42:43 +0530
Subject: [PATCH 12/19] Spring MVC validation

---
 WebContent/WEB-INF/view/user-registration.jsp | 54 ++++++++++++-----
 pom.xml                                       |  6 ++
 .../jm3007/learn/spring/ioc/noxml/Car.java    |  1 -
 .../jm3007/learn/spring/web/BatchCode.java    | 23 +++++++
 .../web/BatchCodeContraintValidator.java      | 22 +++++++
 src/com/jm3007/learn/spring/web/User.java     | 60 ++++++++++++++++++-
 .../learn/spring/web/UserController.java      | 18 +++++-
 7 files changed, 163 insertions(+), 21 deletions(-)
 create mode 100644 src/com/jm3007/learn/spring/web/BatchCode.java
 create mode 100644 src/com/jm3007/learn/spring/web/BatchCodeContraintValidator.java

diff --git a/WebContent/WEB-INF/view/user-registration.jsp b/WebContent/WEB-INF/view/user-registration.jsp
index e1415d6..94f1256 100644
--- a/WebContent/WEB-INF/view/user-registration.jsp
+++ b/WebContent/WEB-INF/view/user-registration.jsp
@@ -2,27 +2,50 @@
 <!DOCTYPE html>
 <html>
 <head>
+<style type="text/css">
+.error {
+	color: red;
+}
+</style>
 <meta charset="ISO-8859-1">
 <title>User Registration Form</title>
 </head>
 <body>
-<h1>${msg}</h1>
-	<form:form action="process-user-registration" method="post" modelAttribute="user">
+	<h1>${msg}</h1>
+	<form:form action="process-user-registration" method="post"
+		modelAttribute="user">
 		<table border="1px">
 			<tr>
 				<td>Name</td>
-				<td><form:input path="name"/> </td>
+				<td><form:input path="name" /> <form:errors path="name"
+						class="error" /></td>
 			</tr>
 			<tr>
 				<td>Age</td>
-				<td><form:input path="age"/> </td>
+				<td><form:input path="age" /><form:errors path="age"
+						class="error" /></td>
+			</tr>
+			<tr>
+				<td>Batch Code</td>
+				<td><form:input path="batchCode" /><form:errors path="batchCode"
+						class="error" /></td>
+			</tr>
+			<tr>
+				<td>Date of Birth</td>
+				<td><form:input path="dob" /><form:errors path="dob"
+						class="error" /></td>
+			</tr>
+			<tr>
+				<td>Last class Date</td>
+				<td><form:input path="lastBatchDate" /><form:errors path="lastBatchDate"
+						class="error" /></td>
 			</tr>
 			<tr>
 				<td>Gender</td>
-				<td><form:radiobutton value="Male" path="gender"/> Male &nbsp; 
-				<form:radiobutton value="Female" path="gender"/> Female </td>
+				<td><form:radiobutton value="Male" path="gender" /> Male &nbsp;
+					<form:radiobutton value="Female" path="gender" /> Female</td>
 			</tr>
-				<tr>
+			<tr>
 				<td>Country</td>
 				<td><form:select path="country">
 						<form:option value="IND" label="India" />
@@ -32,23 +55,22 @@
 			</tr>
 			<tr>
 				<td>Courses</td>
-				<td>
-				<form:checkbox path="courses" value="M1"/> Core Java &nbsp; 
-				<form:checkbox path="courses" value="M2"/> Advance Java &nbsp;
-				<form:checkbox path="courses" value="M3"/> Java Frameworks &nbsp;  
-				</td>
+				<td><form:checkbox path="courses" value="M1" /> Core Java
+					&nbsp; <form:checkbox path="courses" value="M2" /> Advance Java
+					&nbsp; <form:checkbox path="courses" value="M3" /> Java Frameworks
+					&nbsp;</td>
 			</tr>
 			<tr>
 				<td>Are you graduate?</td>
-				<td><form:checkbox path="graduated" /> </td>
+				<td><form:checkbox path="graduated" /></td>
 			</tr>
 			<tr>
 				<td>Feedback</td>
-				<td><form:textarea path="feedback" cols="20" rows="3" /> </td>
+				<td><form:textarea path="feedback" cols="20" rows="3" /></td>
 			</tr>
 			<tr>
-				<td><input type="reset" value="Reset" /> </td>
-				<td><input type="submit" value="Submit" /> </td>
+				<td><input type="reset" value="Reset" /></td>
+				<td><input type="submit" value="Submit" /></td>
 			</tr>
 		</table>
 
diff --git a/pom.xml b/pom.xml
index 2733012..938c2d0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,6 +15,12 @@
 			<artifactId>spring-webmvc</artifactId>
 			<version>5.1.3.RELEASE</version>
 		</dependency>
+		<dependency>
+			<groupId>org.hibernate.validator</groupId>
+			<artifactId>hibernate-validator</artifactId>
+			<version>6.0.13.Final</version>
+		</dependency>
+
 	</dependencies>
 
 
diff --git a/src/com/jm3007/learn/spring/ioc/noxml/Car.java b/src/com/jm3007/learn/spring/ioc/noxml/Car.java
index c64b138..b004b54 100644
--- a/src/com/jm3007/learn/spring/ioc/noxml/Car.java
+++ b/src/com/jm3007/learn/spring/ioc/noxml/Car.java
@@ -4,7 +4,6 @@
 
 @Component
 public class Car {
-
 	public void driveTheCar() {
 		System.out.println("Driving the Car...");
 	}
diff --git a/src/com/jm3007/learn/spring/web/BatchCode.java b/src/com/jm3007/learn/spring/web/BatchCode.java
new file mode 100644
index 0000000..60bfa9b
--- /dev/null
+++ b/src/com/jm3007/learn/spring/web/BatchCode.java
@@ -0,0 +1,23 @@
+package com.jm3007.learn.spring.web;
+
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import javax.validation.Constraint;
+import javax.validation.Payload;
+
+@Constraint(validatedBy = BatchCodeContraintValidator.class)
+@Retention(RUNTIME)
+@Target(FIELD)
+public @interface BatchCode {
+	public String value() default "JM3";
+
+	public String message() default " prefix should be JM3";
+
+	public Class<?>[] groups() default {};
+
+	public Class<? extends Payload>[] payload() default {};
+}
diff --git a/src/com/jm3007/learn/spring/web/BatchCodeContraintValidator.java b/src/com/jm3007/learn/spring/web/BatchCodeContraintValidator.java
new file mode 100644
index 0000000..b794932
--- /dev/null
+++ b/src/com/jm3007/learn/spring/web/BatchCodeContraintValidator.java
@@ -0,0 +1,22 @@
+package com.jm3007.learn.spring.web;
+
+import static java.util.Optional.*;
+
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+public class BatchCodeContraintValidator implements ConstraintValidator<BatchCode, String> {
+
+	private String prefix;
+
+	@Override
+	public void initialize(BatchCode batchCode) {
+		this.prefix = batchCode.value();
+	}
+
+	@Override
+	public boolean isValid(String value, ConstraintValidatorContext context) {
+		return ofNullable(value).map(nonNullValue -> nonNullValue.startsWith(prefix)).orElse(true);
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/web/User.java b/src/com/jm3007/learn/spring/web/User.java
index 12b62ff..3d374b8 100644
--- a/src/com/jm3007/learn/spring/web/User.java
+++ b/src/com/jm3007/learn/spring/web/User.java
@@ -1,20 +1,74 @@
 package com.jm3007.learn.spring.web;
 
+import java.util.Date;
+
+import javax.validation.constraints.Future;
+import javax.validation.constraints.Max;
+import javax.validation.constraints.Min;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Past;
+import javax.validation.constraints.Pattern;
+import javax.validation.constraints.Size;
+
+import org.springframework.format.annotation.DateTimeFormat;
+
 public class User {
+
+	@NotNull(message = " enter valid name")
+	@Size(min = 2, max = 12, message = " name should not be less than 2 characters")
+	@Size(max = 12, message = " name should not be more than 12 characters")
 	private String name;
 
+	@Min(value = 18, message = " age should not be less than 18")
+	@Max(value = 60, message = " age should not be more than 60")
 	private int age;
 
 	private String gender;
 
 	private String country;
-	
+
 	private String[] courses;
-	
+
 	private boolean graduated;
-	
+
 	private String feedback;
 
+	@DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
+	@Past(message = " must be in past")
+	private Date dob;
+
+	@DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
+	@Future(message = " must be in future")
+	private Date lastBatchDate;
+
+	public Date getDob() {
+		return dob;
+	}
+
+	public void setDob(Date dob) {
+		this.dob = dob;
+	}
+
+	public Date getLastBatchDate() {
+		return lastBatchDate;
+	}
+
+	public void setLastBatchDate(Date lastBatchDate) {
+		this.lastBatchDate = lastBatchDate;
+	}
+
+	@BatchCode(value = "JM2", message = " prefix should be JM2")
+	@Pattern(regexp = "^[a-zA-Z0-9]{6}", message = " should not contain special characters")
+	private String batchCode;
+
+	public String getBatchCode() {
+		return batchCode;
+	}
+
+	public void setBatchCode(String batchCode) {
+		this.batchCode = batchCode;
+	}
+
 	public String[] getCourses() {
 		return courses;
 	}
diff --git a/src/com/jm3007/learn/spring/web/UserController.java b/src/com/jm3007/learn/spring/web/UserController.java
index 0de247f..419460c 100644
--- a/src/com/jm3007/learn/spring/web/UserController.java
+++ b/src/com/jm3007/learn/spring/web/UserController.java
@@ -1,7 +1,13 @@
 package com.jm3007.learn.spring.web;
 
+import javax.validation.Valid;
+
+import org.springframework.beans.propertyeditors.StringTrimmerEditor;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.WebDataBinder;
+import org.springframework.web.bind.annotation.InitBinder;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
@@ -10,6 +16,12 @@
 @RequestMapping("/users")
 public class UserController {
 
+	@InitBinder
+	public void preprocessWebData(WebDataBinder webDataBinder) {
+		StringTrimmerEditor stringTrimmerEditor = new StringTrimmerEditor(true);
+		webDataBinder.registerCustomEditor(String.class, stringTrimmerEditor);
+	}
+
 	@RequestMapping(value = "/show-form", method = RequestMethod.GET)
 	public String showUserRegistrationForm(Model model) {
 		model.addAttribute("user", new User());
@@ -18,7 +30,11 @@ public String showUserRegistrationForm(Model model) {
 	}
 
 	@RequestMapping(value = "/process-user-registration", method = RequestMethod.POST)
-	public String processUserRegistration(@ModelAttribute("user") User u) {
+	public String processUserRegistration(@Valid @ModelAttribute("user") User u, BindingResult bindingResult) {
+		if (bindingResult.hasErrors()) {
+			return "user-registration";
+
+		}
 		return "user-profile";
 	}
 }

From bb931d5e4cb645bcd7b95d0b2b6ec86aded0ca8a Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sat, 26 Jan 2019 12:43:07 +0530
Subject: [PATCH 13/19] Hibernate Introduction

---
 pom.xml                                       | 14 +++--
 .../jm3007/learn/hibernate/HibernateApp.java  | 49 ++++++++++++++++
 src/com/jm3007/learn/hibernate/User.java      | 57 +++++++++++++++++++
 .../learn/hibernate/important-queries.sql     |  5 ++
 src/hibernate.cfg.xml                         | 22 +++++++
 5 files changed, 143 insertions(+), 4 deletions(-)
 create mode 100644 src/com/jm3007/learn/hibernate/HibernateApp.java
 create mode 100644 src/com/jm3007/learn/hibernate/User.java
 create mode 100644 src/com/jm3007/learn/hibernate/important-queries.sql
 create mode 100644 src/hibernate.cfg.xml

diff --git a/pom.xml b/pom.xml
index 938c2d0..0518fda 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,11 +20,17 @@
 			<artifactId>hibernate-validator</artifactId>
 			<version>6.0.13.Final</version>
 		</dependency>
-
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-core</artifactId>
+			<version>5.4.0.Final</version>
+		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<version>1.4.193</version>
+		</dependency>
 	</dependencies>
-
-
-
 	<build>
 		<sourceDirectory>src</sourceDirectory>
 		<plugins>
diff --git a/src/com/jm3007/learn/hibernate/HibernateApp.java b/src/com/jm3007/learn/hibernate/HibernateApp.java
new file mode 100644
index 0000000..ed53f67
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/HibernateApp.java
@@ -0,0 +1,49 @@
+package com.jm3007.learn.hibernate;
+
+import java.util.List;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class HibernateApp {
+
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml").addAnnotatedClass(User.class)
+				.buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+
+			// my opereation
+//			User user = new User(3L, "Virat", 59);
+//			session.save(user);
+			
+			User user = session.get(User.class, 1L);
+			System.out.println(user.getName());
+			
+			/*List<User> users = session.createQuery("from User").getResultList();
+			for (User user : users) {
+				System.out.println(user.getName());
+			}*/
+			
+			/*List<User> users = session.createQuery("from User u where u.name = 'Virat'").getResultList();
+			for (User user : users) {
+				System.out.println(user.getName());
+			}*/
+			
+//			User user = session.get(User.class, 2L);
+//			user.setName("Sachin");
+			
+//			User user = session.get(User.class, 1L);
+//			session.delete(user);
+			
+
+			session.getTransaction().commit();
+		} finally {
+			sessionFactory.close();
+		}
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/User.java b/src/com/jm3007/learn/hibernate/User.java
new file mode 100644
index 0000000..84dc002
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/User.java
@@ -0,0 +1,57 @@
+package com.jm3007.learn.hibernate;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_USER")
+public class User {
+
+	@Id
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public User(Long id, String name, int age) {
+		super();
+		this.id = id;
+		this.name = name;
+		this.age = age;
+	}
+
+	public User() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/important-queries.sql b/src/com/jm3007/learn/hibernate/important-queries.sql
new file mode 100644
index 0000000..a2fa4c8
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/important-queries.sql
@@ -0,0 +1,5 @@
+CREATE TABLE JM3007_USER(
+ID NUMBER PRIMARY KEY,
+NAME VARCHAR(50),
+AGE NUMBER
+);
\ No newline at end of file
diff --git a/src/hibernate.cfg.xml b/src/hibernate.cfg.xml
new file mode 100644
index 0000000..a817de3
--- /dev/null
+++ b/src/hibernate.cfg.xml
@@ -0,0 +1,22 @@
+<?xml version='1.0' encoding='utf-8'?>
+<!DOCTYPE hibernate-configuration PUBLIC
+    "-//Hibernate/Hibernate Configuration DTD//EN"
+    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
+
+<hibernate-configuration>
+
+	<!-- a SessionFactory instance listed as /jndi/name -->
+	<session-factory>
+
+		<!-- JDBC properties -->
+		<property name="connection.driver_class">org.h2.Driver</property>
+		<property name="connection.url">jdbc:h2:~/test</property>
+		<property name="connection.username">sa</property>
+		<property name="connection.password"></property>
+		<property name="connection.pool_size">1</property>
+		<property name="dialect">org.hibernate.dialect.H2Dialect</property>
+		<property name="show_sql">true</property>
+		<property name="current_session_context_class">thread</property>
+	</session-factory>
+
+</hibernate-configuration>
\ No newline at end of file

From 87ead1023044e1b71de18d592ff8e6e6298adf5b Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sun, 27 Jan 2019 12:24:13 +0530
Subject: [PATCH 14/19] Identity

---
 .../hibernate/identifier/auto/AutoUser.java   | 59 ++++++++++++++++
 .../identifier/auto/AutoUserClient.java       | 25 +++++++
 .../identifier/identity/IdentityUser.java     | 64 ++++++++++++++++++
 .../identity/IdentityUserClient.java          | 27 ++++++++
 .../identifier/sequence/SequenceUser.java     | 66 ++++++++++++++++++
 .../sequence/SequenceUserClient.java          | 29 ++++++++
 .../hibernate/identifier/table/TableUser.java | 67 +++++++++++++++++++
 .../identifier/table/TableUserClient.java     | 29 ++++++++
 .../learn/hibernate/important-queries.sql     | 39 +++++++++++
 src/hibernate.cfg.xml                         |  2 +-
 10 files changed, 406 insertions(+), 1 deletion(-)
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/auto/AutoUser.java
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/auto/AutoUserClient.java
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/identity/IdentityUser.java
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/identity/IdentityUserClient.java
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUser.java
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUserClient.java
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/table/TableUser.java
 create mode 100644 src/com/jm3007/learn/hibernate/identifier/table/TableUserClient.java

diff --git a/src/com/jm3007/learn/hibernate/identifier/auto/AutoUser.java b/src/com/jm3007/learn/hibernate/identifier/auto/AutoUser.java
new file mode 100644
index 0000000..4e6328b
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/auto/AutoUser.java
@@ -0,0 +1,59 @@
+package com.jm3007.learn.hibernate.identifier.auto;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_IDENTIFIER_AUTO_USER")
+public class AutoUser {
+
+	@Id
+	@Column(name = "id")
+	@GeneratedValue(strategy = GenerationType.AUTO)
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public AutoUser(String name, int age) {
+		super();
+		this.name = name;
+		this.age = age;
+	}
+
+	public AutoUser() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/identifier/auto/AutoUserClient.java b/src/com/jm3007/learn/hibernate/identifier/auto/AutoUserClient.java
new file mode 100644
index 0000000..7a929ca
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/auto/AutoUserClient.java
@@ -0,0 +1,25 @@
+package com.jm3007.learn.hibernate.identifier.auto;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class AutoUserClient {
+
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(AutoUser.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+			AutoUser autoUser = new AutoUser("Bikas", 20);
+			session.save(autoUser);
+			session.getTransaction().commit();
+		} finally {
+			sessionFactory.close();
+		}
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/identifier/identity/IdentityUser.java b/src/com/jm3007/learn/hibernate/identifier/identity/IdentityUser.java
new file mode 100644
index 0000000..f51d422
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/identity/IdentityUser.java
@@ -0,0 +1,64 @@
+package com.jm3007.learn.hibernate.identifier.identity;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_IDENTIFIER_IDENTITY_USER")
+public class IdentityUser {
+
+	@Override
+	public String toString() {
+		return "IdentityUser [id=" + id + ", name=" + name + ", age=" + age + "]";
+	}
+
+	@Id
+	@Column(name = "id")
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public IdentityUser(String name, int age) {
+		super();
+		this.name = name;
+		this.age = age;
+	}
+
+	public IdentityUser() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/identifier/identity/IdentityUserClient.java b/src/com/jm3007/learn/hibernate/identifier/identity/IdentityUserClient.java
new file mode 100644
index 0000000..d2678bb
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/identity/IdentityUserClient.java
@@ -0,0 +1,27 @@
+package com.jm3007.learn.hibernate.identifier.identity;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class IdentityUserClient {
+
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(IdentityUser.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+			IdentityUser autoUser = new IdentityUser("Bikas", 20);
+			Long id = (Long)session.save(autoUser);
+			IdentityUser identityUser = session.get(IdentityUser.class, id);
+			System.out.println(identityUser);
+			session.getTransaction().commit();
+		} finally {
+//			sessionFactory.close();
+		}
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUser.java b/src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUser.java
new file mode 100644
index 0000000..4f65e3b
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUser.java
@@ -0,0 +1,66 @@
+package com.jm3007.learn.hibernate.identifier.sequence;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.SequenceGenerator;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_IDENTIFIER_SEQUENCE_USER")
+public class SequenceUser {
+
+	@Override
+	public String toString() {
+		return "IdentityUser [id=" + id + ", name=" + name + ", age=" + age + "]";
+	}
+
+	@Id
+	@Column(name = "id")
+	@SequenceGenerator(name = "mySequence", sequenceName = "IDENTIFIER_SEQUENCE", allocationSize = 1, schema = "PUBLIC")
+	@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "mySequence")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public SequenceUser(String name, int age) {
+		super();
+		this.name = name;
+		this.age = age;
+	}
+
+	public SequenceUser() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUserClient.java b/src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUserClient.java
new file mode 100644
index 0000000..300b72d
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/sequence/SequenceUserClient.java
@@ -0,0 +1,29 @@
+package com.jm3007.learn.hibernate.identifier.sequence;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class SequenceUserClient {
+
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(SequenceUser.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+			SequenceUser sequenceUser = new SequenceUser("Bikas", 20);
+			Long id = (Long)session.save(sequenceUser);
+			SequenceUser sequenceUserFromDb = session.get(SequenceUser.class, id);
+			System.out.println(sequenceUserFromDb);
+			sequenceUserFromDb.setAge(100);
+			System.out.println(sequenceUserFromDb);
+			session.getTransaction().commit();
+		} finally {
+			sessionFactory.close();
+		}
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/identifier/table/TableUser.java b/src/com/jm3007/learn/hibernate/identifier/table/TableUser.java
new file mode 100644
index 0000000..b24fe19
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/table/TableUser.java
@@ -0,0 +1,67 @@
+package com.jm3007.learn.hibernate.identifier.table;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.SequenceGenerator;
+import javax.persistence.Table;
+import javax.persistence.TableGenerator;
+
+@Entity
+@Table(name = "JM3007_IDENTIFIER_TABLE_USER")
+public class TableUser {
+
+	@Override
+	public String toString() {
+		return "IdentityUser [id=" + id + ", name=" + name + ", age=" + age + "]";
+	}
+
+	@Id
+	@Column(name = "id")
+	@TableGenerator(name = "mySequence", table = "JM3007_IDENTIFIER_SEQUENCE_TABLE", pkColumnName = "SEQ_NAME", pkColumnValue = "IDENTIFIER_TABLE_SEQUENCE", valueColumnName = "NEXT_VAL", allocationSize = 1, schema = "PUBLIC")
+	@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "mySequence")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public TableUser(String name, int age) {
+		super();
+		this.name = name;
+		this.age = age;
+	}
+
+	public TableUser() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/identifier/table/TableUserClient.java b/src/com/jm3007/learn/hibernate/identifier/table/TableUserClient.java
new file mode 100644
index 0000000..6e1fb4e
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/identifier/table/TableUserClient.java
@@ -0,0 +1,29 @@
+package com.jm3007.learn.hibernate.identifier.table;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class TableUserClient {
+
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(TableUser.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+			TableUser tableUser = new TableUser("Bikas", 20);
+			Long id = (Long)session.save(tableUser);
+//			TableUser tableUserFromDb = session.get(TableUser.class, id);
+//			System.out.println(tableUserFromDb);
+//			tableUserFromDb.setAge(100);
+//			System.out.println(tableUserFromDb);
+			session.getTransaction().commit();
+		} finally {
+			sessionFactory.close();
+		}
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/important-queries.sql b/src/com/jm3007/learn/hibernate/important-queries.sql
index a2fa4c8..01db507 100644
--- a/src/com/jm3007/learn/hibernate/important-queries.sql
+++ b/src/com/jm3007/learn/hibernate/important-queries.sql
@@ -2,4 +2,43 @@ CREATE TABLE JM3007_USER(
 ID NUMBER PRIMARY KEY,
 NAME VARCHAR(50),
 AGE NUMBER
+);
+
+-- IDENTIFIER AUTO
+DROP SEQUENCE HIBERNATE_SEQUENCE;
+CREATE SEQUENCE HIBERNATE_SEQUENCE;
+ALTER SEQUENCE HIBERNATE_SEQUENCE RESTART WITH 1001;
+CREATE TABLE JM3007_IDENTIFIER_AUTO_USER(
+ID BIGINT PRIMARY KEY,
+NAME VARCHAR(50),
+AGE NUMBER
+);
+
+-- IDENTIFIER IDENTITY
+CREATE TABLE JM3007_IDENTIFIER_IDENTITY_USER(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+NAME VARCHAR(50),
+AGE NUMBER
+);
+
+-- IDENTIFIER SEQUENCE
+CREATE SEQUENCE IDENTIFIER_SEQUENCE;
+CREATE TABLE JM3007_IDENTIFIER_SEQUENCE_USER(
+ID BIGINT PRIMARY KEY,
+NAME VARCHAR(50),
+AGE NUMBER
+);
+
+
+-- IDENTIFIER TABLE
+CREATE SEQUENCE IDENTIFIER_TABLE_SEQUENCE;
+CREATE TABLE JM3007_IDENTIFIER_SEQUENCE_TABLE(
+SEQ_NAME VARCHAR,
+NEXT_VAL BIGINT
+);
+INSERT INTO JM3007_IDENTIFIER_SEQUENCE_TABLE VALUES('IDENTIFIER_TABLE_SEQUENCE', 5001);
+CREATE TABLE JM3007_IDENTIFIER_TABLE_USER(
+ID BIGINT PRIMARY KEY,
+NAME VARCHAR(50),
+AGE NUMBER
 );
\ No newline at end of file
diff --git a/src/hibernate.cfg.xml b/src/hibernate.cfg.xml
index a817de3..329cd6f 100644
--- a/src/hibernate.cfg.xml
+++ b/src/hibernate.cfg.xml
@@ -13,7 +13,7 @@
 		<property name="connection.url">jdbc:h2:~/test</property>
 		<property name="connection.username">sa</property>
 		<property name="connection.password"></property>
-		<property name="connection.pool_size">1</property>
+		<property name="connection.pool_size">2</property>
 		<property name="dialect">org.hibernate.dialect.H2Dialect</property>
 		<property name="show_sql">true</property>
 		<property name="current_session_context_class">thread</property>

From 106f943c09074666ddeb12303f4f678cc0f1f007 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sat, 2 Feb 2019 11:57:24 +0530
Subject: [PATCH 15/19] Associations

---
 .../association/onetomany/uni/Assignment.java | 43 +++++++++
 .../association/onetomany/uni/Course.java     | 60 ++++++++++++
 .../association/onetomany/uni/CourseApp.java  | 46 +++++++++
 .../onetomany/uni/one-to-many-uni.sql         | 11 +++
 .../association/onetoone/bi/Student.java      | 95 +++++++++++++++++++
 .../association/onetoone/bi/StudentApp.java   | 33 +++++++
 .../onetoone/bi/StudentDetail.java            | 79 +++++++++++++++
 .../association/onetoone/bi/ont-to-one-bi.sql | 14 +++
 .../association/onetoone/uni/Student.java     | 94 ++++++++++++++++++
 .../association/onetoone/uni/StudentApp.java  | 32 +++++++
 .../onetoone/uni/StudentDetail.java           | 65 +++++++++++++
 .../onetoone/uni/ont-to-one-uni.sql           | 14 +++
 12 files changed, 586 insertions(+)
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/uni/Assignment.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/uni/Course.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/uni/CourseApp.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/uni/one-to-many-uni.sql
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentApp.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentDetail.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/bi/ont-to-one-bi.sql
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/uni/Student.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentApp.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentDetail.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetoone/uni/ont-to-one-uni.sql

diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/uni/Assignment.java b/src/com/jm3007/learn/hibernate/association/onetomany/uni/Assignment.java
new file mode 100644
index 0000000..d2b7113
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/uni/Assignment.java
@@ -0,0 +1,43 @@
+package com.jm3007.learn.hibernate.association.onetomany.uni;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_ONETOMANY_UNI_ASSIGNMENT")
+public class Assignment {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	@Override
+	public String toString() {
+		return "Assignment [id=" + id + ", name=" + name + "]";
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/uni/Course.java b/src/com/jm3007/learn/hibernate/association/onetomany/uni/Course.java
new file mode 100644
index 0000000..00bff53
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/uni/Course.java
@@ -0,0 +1,60 @@
+package com.jm3007.learn.hibernate.association.onetomany.uni;
+
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_ONETOMANY_UNI_COURSE")
+public class Course {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@JoinColumn(name = "COURSE_ID")
+	@OneToMany(cascade = CascadeType.ALL)
+	private List<Assignment> assignments;
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public List<Assignment> getAssignments() {
+		return assignments;
+	}
+
+	public void setAssignments(List<Assignment> assignments) {
+		this.assignments = assignments;
+	}
+
+	@Override
+	public String toString() {
+		return "Course [id=" + id + ", name=" + name + ", assignments=" + assignments + "]";
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/uni/CourseApp.java b/src/com/jm3007/learn/hibernate/association/onetomany/uni/CourseApp.java
new file mode 100644
index 0000000..2817068
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/uni/CourseApp.java
@@ -0,0 +1,46 @@
+package com.jm3007.learn.hibernate.association.onetomany.uni;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class CourseApp {
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(Course.class).addAnnotatedClass(Assignment.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+
+		/*	Assignment assignemnt1 = new Assignment();
+			assignemnt1.setName("CRUD operations");
+
+			Assignment assignemnt2 = new Assignment();
+			assignemnt2.setName("Identifeirs");
+
+			List<Assignment> assignments = new ArrayList<>();
+			assignments.add(assignemnt1);
+			assignments.add(assignemnt2);
+
+			Course course = new Course();
+			course.setName("Hibernate");
+			course.setAssignments(assignments);*/
+
+//			session.save(course);
+			
+			Course course = session.get(Course.class, 2L);
+			course.setName("Spring");
+			course.getAssignments().get(0).setName("CURD operation");
+
+			session.getTransaction().commit();
+
+		} finally {
+			sessionFactory.close();
+		}
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/uni/one-to-many-uni.sql b/src/com/jm3007/learn/hibernate/association/onetomany/uni/one-to-many-uni.sql
new file mode 100644
index 0000000..4b0f522
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/uni/one-to-many-uni.sql
@@ -0,0 +1,11 @@
+CREATE TABLE JM3007_ONETOMANY_UNI_COURSE(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+NAME VARCHAR(50)
+);
+
+CREATE TABLE JM3007_ONETOMANY_UNI_ASSIGNMENT(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+NAME VARCHAR(50),
+COURSE_ID BIGINT,
+FOREIGN KEY (COURSE_ID) REFERENCES JM3007_ONETOMANY_UNI_COURSE(ID)
+);
\ No newline at end of file
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java b/src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java
new file mode 100644
index 0000000..631ff74
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java
@@ -0,0 +1,95 @@
+package com.jm3007.learn.hibernate.association.onetoone.bi;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import javax.persistence.Table;
+
+import org.springframework.web.bind.annotation.Mapping;
+
+@Entity
+@Table(name = "JM3007_ONETOONE_BI_STUDENT")
+public class Student {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public Student() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public Student(String name, int age, String nationality, StudentDetail studentDetail) {
+		super();
+		this.name = name;
+		this.age = age;
+		this.nationality = nationality;
+		this.studentDetail = studentDetail;
+	}
+
+	@Column(name = "nationality")
+	private String nationality;
+
+	@JoinColumn(name = "STUDENT_DETAIL_ID")
+	@OneToOne(cascade = CascadeType.ALL)
+	private StudentDetail studentDetail;
+
+	public StudentDetail getStudentDetail() {
+		return studentDetail;
+	}
+
+	public void setStudentDetail(StudentDetail studentDetail) {
+		this.studentDetail = studentDetail;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+	public String getNationality() {
+		return nationality;
+	}
+
+	public void setNationality(String nationality) {
+		this.nationality = nationality;
+	}
+
+	@Override
+	public String toString() {
+		return "Student [id=" + id + ", name=" + name + ", age=" + age + ", nationality=" + nationality
+				+ ", studentDetail=" + studentDetail + "]";
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentApp.java b/src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentApp.java
new file mode 100644
index 0000000..844f5fc
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentApp.java
@@ -0,0 +1,33 @@
+package com.jm3007.learn.hibernate.association.onetoone.bi;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class StudentApp {
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(Student.class).addAnnotatedClass(StudentDetail.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+
+			StudentDetail studentDetail = new StudentDetail("New Horizon", 1001);
+			Student student = new Student("Satish", 22, "Indian", studentDetail);
+			studentDetail.setStudent(student);
+			
+			
+//			session.save(studentDetail);
+
+			StudentDetail std = session.get(StudentDetail.class, 1L);
+			System.out.println(std);
+			System.out.println(std.getStudent());
+
+			session.getTransaction().commit();
+
+		} finally {
+		}
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentDetail.java b/src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentDetail.java
new file mode 100644
index 0000000..959e7ae
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/bi/StudentDetail.java
@@ -0,0 +1,79 @@
+package com.jm3007.learn.hibernate.association.onetoone.bi;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_ONETOONE_BI_STUDENT_DETAIL")
+public class StudentDetail {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "college_name")
+	private String collegeName;
+
+	@Column(name = "ROLL_NO")
+	private Integer rollNo;
+	
+	@OneToOne(cascade = {CascadeType.ALL}, mappedBy="studentDetail")
+	private Student student;
+
+	public Student getStudent() {
+		return student;
+	}
+
+	public void setStudent(Student student) {
+		this.student = student;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public StudentDetail(String collegeName, Integer rollNo) {
+		super();
+		this.collegeName = collegeName;
+		this.rollNo = rollNo;
+	}
+
+	public StudentDetail() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getCollegeName() {
+		return collegeName;
+	}
+
+	public void setCollegeName(String collegeName) {
+		this.collegeName = collegeName;
+	}
+
+	public Integer getRollNo() {
+		return rollNo;
+	}
+
+	public void setRollNo(Integer rollNo) {
+		this.rollNo = rollNo;
+	}
+
+	@Override
+	public String toString() {
+		return "StudentDetail [id=" + id + ", collegeName=" + collegeName + ", rollNo=" + rollNo + "]";
+	}
+
+
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/bi/ont-to-one-bi.sql b/src/com/jm3007/learn/hibernate/association/onetoone/bi/ont-to-one-bi.sql
new file mode 100644
index 0000000..8193a06
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/bi/ont-to-one-bi.sql
@@ -0,0 +1,14 @@
+CREATE TABLE JM3007_ONETOONE_BI_STUDENT_DETAIL(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+COLLEGE_NAME VARCHAR(50),
+ROLL_NO NUMBER,
+);
+
+CREATE TABLE JM3007_ONETOONE_BI_STUDENT(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+NAME VARCHAR(50),
+AGE NUMBER,
+NATIONALITY VARCHAR(50),
+STUDENT_DETAIL_ID BIGINT,
+FOREIGN KEY (STUDENT_DETAIL_ID) REFERENCES JM3007_ONETOONE_BI_STUDENT_DETAIL(ID)
+);
\ No newline at end of file
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/uni/Student.java b/src/com/jm3007/learn/hibernate/association/onetoone/uni/Student.java
new file mode 100644
index 0000000..3eb01c5
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/uni/Student.java
@@ -0,0 +1,94 @@
+package com.jm3007.learn.hibernate.association.onetoone.uni;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import javax.persistence.Table;
+
+import org.springframework.web.bind.annotation.Mapping;
+
+@Entity
+@Table(name = "JM3007_ONETOONE_UNI_STUDENT")
+public class Student {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public Student() {
+		super();
+	}
+
+	public Student(String name, int age, String nationality, StudentDetail studentDetail) {
+		super();
+		this.name = name;
+		this.age = age;
+		this.nationality = nationality;
+		this.studentDetail = studentDetail;
+	}
+
+	@Column(name = "nationality")
+	private String nationality;
+
+	@JoinColumn(name = "STUDENT_DETAIL_ID")
+	@OneToOne(cascade = CascadeType.ALL)
+	private StudentDetail studentDetail;
+
+	public StudentDetail getStudentDetail() {
+		return studentDetail;
+	}
+
+	public void setStudentDetail(StudentDetail studentDetail) {
+		this.studentDetail = studentDetail;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+	public String getNationality() {
+		return nationality;
+	}
+
+	public void setNationality(String nationality) {
+		this.nationality = nationality;
+	}
+
+	@Override
+	public String toString() {
+		return "Student [id=" + id + ", name=" + name + ", age=" + age + ", nationality=" + nationality
+				+ ", studentDetail=" + studentDetail + "]";
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentApp.java b/src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentApp.java
new file mode 100644
index 0000000..a17a79b
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentApp.java
@@ -0,0 +1,32 @@
+package com.jm3007.learn.hibernate.association.onetoone.uni;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class StudentApp {
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(Student.class).addAnnotatedClass(StudentDetail.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+
+//			StudentDetail studentDetail = new StudentDetail("New Horizon", 1001);
+//			Student student = new Student("Satish", 22, "Indian", studentDetail);
+//			session.save(student);
+
+			Student std = session.get(Student.class, 1L);
+			System.out.println(std);
+			
+			session.delete(std);
+
+			session.getTransaction().commit();
+
+		} finally {
+			sessionFactory.close();
+		}
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentDetail.java b/src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentDetail.java
new file mode 100644
index 0000000..f7f8a7f
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/uni/StudentDetail.java
@@ -0,0 +1,65 @@
+package com.jm3007.learn.hibernate.association.onetoone.uni;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_ONETOONE_UNI_STUDENT_DETAIL")
+public class StudentDetail {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "college_name")
+	private String collegeName;
+
+	@Column(name = "ROLL_NO")
+	private Integer rollNo;
+
+	public Long getId() {
+		return id;
+	}
+
+	public StudentDetail(String collegeName, Integer rollNo) {
+		super();
+		this.collegeName = collegeName;
+		this.rollNo = rollNo;
+	}
+
+	public StudentDetail() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getCollegeName() {
+		return collegeName;
+	}
+
+	public void setCollegeName(String collegeName) {
+		this.collegeName = collegeName;
+	}
+
+	public Integer getRollNo() {
+		return rollNo;
+	}
+
+	public void setRollNo(Integer rollNo) {
+		this.rollNo = rollNo;
+	}
+
+	@Override
+	public String toString() {
+		return "StudentDetail [id=" + id + ", collegeName=" + collegeName + ", rollNo=" + rollNo + "]";
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/uni/ont-to-one-uni.sql b/src/com/jm3007/learn/hibernate/association/onetoone/uni/ont-to-one-uni.sql
new file mode 100644
index 0000000..886e658
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/uni/ont-to-one-uni.sql
@@ -0,0 +1,14 @@
+CREATE TABLE JM3007_ONETOONE_UNI_STUDENT_DETAIL(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+COLLEGE_NAME VARCHAR(50),
+ROLL_NO NUMBER,
+);
+
+CREATE TABLE JM3007_ONETOONE_UNI_STUDENT(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+NAME VARCHAR(50),
+AGE NUMBER,
+NATIONALITY VARCHAR(50),
+STUDENT_DETAIL_ID BIGINT,
+FOREIGN KEY (STUDENT_DETAIL_ID) REFERENCES JM3007_ONETOONE_UNI_STUDENT_DETAIL(ID)
+);
\ No newline at end of file

From c9c9c129061bfc2c897d28d027ce870d6d2f7cdf Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sun, 3 Feb 2019 14:57:18 +0530
Subject: [PATCH 16/19] Many to Many

---
 .../association/manytomany/bi/Address.java    | 59 +++++++++++++
 .../manytomany/bi/ManyToManyBiApp.java        | 67 +++++++++++++++
 .../association/manytomany/bi/Person.java     | 67 +++++++++++++++
 .../manytomany/bi/hibernate.cfg.xml           | 22 +++++
 .../manytomany/bi/manytomany-bi.sql           | 27 ++++++
 .../association/manytomany/uni/Address.java   | 60 +++++++++++++
 .../manytomany/uni/ManyToManyUniApp.java      | 84 +++++++++++++++++++
 .../association/manytomany/uni/Person.java    | 73 ++++++++++++++++
 .../manytomany/uni/manytomany-uni.sql         | 25 ++++++
 .../association/onetomany/bi/Assignment.java  | 68 +++++++++++++++
 .../association/onetomany/bi/Course.java      | 78 +++++++++++++++++
 .../association/onetomany/bi/CourseApp.java   | 37 ++++++++
 .../onetomany/bi/one-to-many-bi.sql           | 11 +++
 .../association/onetoone/bi/Student.java      |  6 ++
 14 files changed, 684 insertions(+)
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/bi/Address.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/bi/ManyToManyBiApp.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/bi/Person.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/bi/hibernate.cfg.xml
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/bi/manytomany-bi.sql
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/uni/Address.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/uni/ManyToManyUniApp.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/uni/Person.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/manytomany/uni/manytomany-uni.sql
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/bi/Assignment.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/bi/Course.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/bi/CourseApp.java
 create mode 100644 src/com/jm3007/learn/hibernate/association/onetomany/bi/one-to-many-bi.sql

diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/bi/Address.java b/src/com/jm3007/learn/hibernate/association/manytomany/bi/Address.java
new file mode 100644
index 0000000..2978797
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/bi/Address.java
@@ -0,0 +1,59 @@
+package com.jm3007.learn.hibernate.association.manytomany.bi;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.ManyToMany;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_MANYTOMANY_BI_Address")
+public class Address {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private Long id;
+
+	@Column(name = "street")
+	private String street;
+
+	@Column(name = "number")
+	private String number;
+
+	@ManyToMany(mappedBy = "addresses", cascade=CascadeType.ALL)
+	private List<Person> owners = new ArrayList<Person>();
+
+	public Address() {
+	}
+
+	public Address(String street, String number) {
+		this.street = street;
+		this.number = number;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public String getStreet() {
+		return street;
+	}
+
+	public String getNumber() {
+		return number;
+	}
+
+	public List<Person> getOwners() {
+		return owners;
+	}
+
+	public void setOwners(List<Person> owners) {
+		this.owners = owners;
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/bi/ManyToManyBiApp.java b/src/com/jm3007/learn/hibernate/association/manytomany/bi/ManyToManyBiApp.java
new file mode 100644
index 0000000..0647ad4
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/bi/ManyToManyBiApp.java
@@ -0,0 +1,67 @@
+package com.jm3007.learn.hibernate.association.manytomany.bi;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class ManyToManyBiApp {
+
+	static SessionFactory sessionFacoty = null;
+	static Session session = null;
+
+	public static void main(String[] args) {
+
+		try {
+			sessionFacoty = new Configuration()
+					.configure("hibernate.cfg.xml")
+					.addAnnotatedClass(Person.class)
+					.addAnnotatedClass(Address.class)
+					.buildSessionFactory();
+			session = sessionFacoty.getCurrentSession();
+
+			insert();
+//			remove();
+
+		} finally {
+			sessionFacoty.close();
+		}
+	}
+
+	public static void insert() {
+		session.beginTransaction();
+
+		Person person1 = new Person("ABC-123");
+		Person person2 = new Person("DEF-456");
+
+		Address address1 = new Address("12th Avenue", "12A");
+		Address address2 = new Address("18th Avenue", "18B");
+
+		person1.addAddress(address1);
+		person1.addAddress(address2);
+
+		person2.addAddress(address1);
+
+//		session.save(person1);
+//		session.save(person2);
+				
+		session.save(address1);
+		session.save(address2);
+
+		session.getTransaction().commit();
+	}
+
+	public static void remove() {
+		session.beginTransaction();
+
+		Person person1 = session.get(Person.class, 1l);
+		Address address1 = session.get(Address.class, 1l);
+		Address address2 = session.get(Address.class, 1l);
+
+		person1.getAddresses().remove(address1);
+		
+		session.getTransaction().commit();
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/bi/Person.java b/src/com/jm3007/learn/hibernate/association/manytomany/bi/Person.java
new file mode 100644
index 0000000..ec0ca3c
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/bi/Person.java
@@ -0,0 +1,67 @@
+package com.jm3007.learn.hibernate.association.manytomany.bi;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.ManyToMany;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_MANYTOMANY_BI_Person")
+public class Person {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@ManyToMany(cascade = { CascadeType.ALL })
+	private List<Address> addresses = new ArrayList<>();
+
+	public Person() {
+	}
+
+	public List<Address> getAddresses() {
+		return addresses;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Person(String name) {
+		super();
+		this.name = name;
+	}
+
+	//hand-shaking method
+	public void addAddress(Address address) {
+		addresses.add(address);
+		address.getOwners().add(this);
+	}
+
+	public void removeAddress(Address address) {
+		addresses.remove(address);
+		address.getOwners().remove(this);
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/bi/hibernate.cfg.xml b/src/com/jm3007/learn/hibernate/association/manytomany/bi/hibernate.cfg.xml
new file mode 100644
index 0000000..0755370
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/bi/hibernate.cfg.xml
@@ -0,0 +1,22 @@
+<?xml version='1.0' encoding='utf-8'?>
+<!DOCTYPE hibernate-configuration PUBLIC
+    "-//Hibernate/Hibernate Configuration DTD//EN"
+    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
+
+<hibernate-configuration>
+
+	<!-- a SessionFactory instance listed as /jndi/name -->
+	<session-factory>
+
+		<!-- JDBC properties -->
+		<property name="connection.driver_class">org.h2.Driver</property>
+		<property name="connection.url">jdbc:h2:~/hfw_manytomany_bi</property>
+		<property name="connection.username">sa</property>
+		<property name="connection.password">sa</property>
+		<property name="connection.pool_size">1</property>
+		<property name="dialect">org.hibernate.dialect.H2Dialect</property>
+		<property name="show_sql">true</property>
+		<property name="current_session_context_class">thread</property>
+	</session-factory>
+
+</hibernate-configuration>
\ No newline at end of file
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/bi/manytomany-bi.sql b/src/com/jm3007/learn/hibernate/association/manytomany/bi/manytomany-bi.sql
new file mode 100644
index 0000000..e46a182
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/bi/manytomany-bi.sql
@@ -0,0 +1,27 @@
+alter table JM3005_MANYTOMANY_BI_Person_JM3005_MANYTOMANY_BI_ADDRESS drop constraint BI_Owners_id_fk;
+
+CREATE TABLE JM3007_MANYTOMANY_BI_ADDRESS (
+    idBIGINT AUTO_INCREMENT,
+    number VARCHAR(255) ,
+    street VARCHAR(255) ,
+    PRIMARY KEY ( id )
+);
+
+CREATE TABLE JM3007_MANYTOMANY_BI_Person (
+    id BIGINT  AUTO_INCREMENT,
+    name varchar,
+    PRIMARY KEY ( id )
+);
+
+CREATE TABLE JM3007_MANYTOMANY_BI_Person_JM3007_MANYTOMANY_BI_ADDRESS (
+    Owners_id BIGINT NOT NULL ,
+    addresses_id BIGINT NOT NULL
+);
+
+ALTER TABLE JM3007_MANYTOMANY_BI_Person_JM3007_MANYTOMANY_BI_ADDRESS
+ADD CONSTRAINT BI_addresses_id_fk
+FOREIGN KEY (addresses_id) REFERENCES JM3007_MANYTOMANY_BI_ADDRESS;
+
+ALTER TABLE JM3007_MANYTOMANY_BI_Person_JM3007_MANYTOMANY_BI_ADDRESS
+ADD CONSTRAINT BI_Owners_id_fk
+FOREIGN KEY (Owners_id) REFERENCES JM3007_MANYTOMANY_BI_Person;
\ No newline at end of file
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/uni/Address.java b/src/com/jm3007/learn/hibernate/association/manytomany/uni/Address.java
new file mode 100644
index 0000000..97ed9ca
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/uni/Address.java
@@ -0,0 +1,60 @@
+package com.jm3007.learn.hibernate.association.manytomany.uni;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_MANYTOMANY_UNI_Address")
+public class Address {
+
+	@Id
+	@GeneratedValue(strategy=GenerationType.IDENTITY)
+	private Long id;
+
+	@Column(name="street")
+	private String street;
+
+	@Column(name = "number")
+	private String number;
+
+	public Address() {
+	}
+
+	public Address(String street, String number) {
+		this.street = street;
+		this.number = number;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public String getStreet() {
+		return street;
+	}
+
+	public String getNumber() {
+		return number;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public void setStreet(String street) {
+		this.street = street;
+	}
+
+	public void setNumber(String number) {
+		this.number = number;
+	}
+
+	@Override
+	public String toString() {
+		return "Address [id=" + id + ", street=" + street + ", number=" + number + "]";
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/uni/ManyToManyUniApp.java b/src/com/jm3007/learn/hibernate/association/manytomany/uni/ManyToManyUniApp.java
new file mode 100644
index 0000000..c4ff5ae
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/uni/ManyToManyUniApp.java
@@ -0,0 +1,84 @@
+package com.jm3007.learn.hibernate.association.manytomany.uni;
+
+import java.util.List;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class ManyToManyUniApp {
+
+	static SessionFactory sessionFacoty = null;
+	static Session session = null;
+
+	public static void main(String[] args) {
+
+		try {
+			sessionFacoty = new Configuration().configure("hibernate.cfg.xml").addAnnotatedClass(Person.class)
+					.addAnnotatedClass(Address.class).buildSessionFactory();
+			session = sessionFacoty.getCurrentSession();
+
+//			 insert();
+//			getPerson();
+//			addOneMoreAddressInExistingPerson();
+			 remove();
+
+		} finally {
+			sessionFacoty.close();
+		}
+	}
+
+	private static void addOneMoreAddressInExistingPerson() {
+		session.beginTransaction();
+
+		Person p = session.get(Person.class, 1L);
+		List<Address> addrs = p.getAddresses();
+
+		Address address3 = new Address("Marathalli", "HDFC Bank");
+		addrs.add(address3);
+
+		session.getTransaction().commit();
+	}
+
+	private static void getPerson() {
+		session.beginTransaction();
+
+		Person p = session.get(Person.class, 1L);
+		System.out.println(p);
+
+		session.getTransaction().commit();
+
+	}
+
+	public static void insert() {
+		session.beginTransaction();
+
+		Person person1 = new Person("Atul");
+		Person person2 = new Person("At");
+
+		Address address1 = new Address("12th Avenue", "12A");
+		Address address2 = new Address("18th Avenue", "18B");
+
+		person1.getAddresses().add(address1);
+		person1.getAddresses().add(address2);
+
+		person2.getAddresses().add(address1);
+
+		session.save(person1);
+		session.save(person2);
+
+		session.getTransaction().commit();
+	}
+
+	public static void remove() {
+		session.beginTransaction();
+
+//		Person person1 = session.get(Person.class, 1l);
+		Person person2 = session.get(Person.class, 2l);
+//		Address address1 = session.get(Address.class, 1l);
+
+//		person1.getAddresses().remove(address1);
+		 session.remove(person2);
+		session.getTransaction().commit();
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/uni/Person.java b/src/com/jm3007/learn/hibernate/association/manytomany/uni/Person.java
new file mode 100644
index 0000000..bed7d09
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/uni/Person.java
@@ -0,0 +1,73 @@
+package com.jm3007.learn.hibernate.association.manytomany.uni;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.ManyToMany;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_MANYTOMANY_UNI_Person")
+public class Person {
+
+	@Id
+	@GeneratedValue(strategy=GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+	
+	@Column(name="name")
+	private String name;
+
+	@ManyToMany(cascade = { CascadeType.ALL })
+	private List<Address> addresses = new ArrayList<>();
+
+	public Person() {
+	}
+
+	public List<Address> getAddresses() {
+		return addresses;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Person(String name) {
+		super();
+		this.name = name;
+	}
+
+	public void setAddr(Address addr) {
+		if(addresses == null) {
+			 addresses = new ArrayList<>();
+		}
+		addresses.add(addr);
+	}
+	
+	@Override
+	public String toString() {
+		return "Person [id=" + id + ", name=" + name + ", addresses=" + addresses + "]";
+	}
+
+	public void setAddresses(List<Address> addresses) {
+		this.addresses = addresses;
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/manytomany/uni/manytomany-uni.sql b/src/com/jm3007/learn/hibernate/association/manytomany/uni/manytomany-uni.sql
new file mode 100644
index 0000000..c4316de
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/manytomany/uni/manytomany-uni.sql
@@ -0,0 +1,25 @@
+CREATE TABLE JM3007_MANYTOMANY_UNI_Person (
+    id BIGINT  AUTO_INCREMENT,
+    name varchar,
+    PRIMARY KEY ( id )
+);
+
+CREATE TABLE JM3007_MANYTOMANY_UNI_Address (
+    id BIGINT AUTO_INCREMENT,
+    number VARCHAR(255) ,
+    street VARCHAR(255) ,
+    PRIMARY KEY ( id )
+);
+
+CREATE TABLE JM3007_MANYTOMANY_UNI_Person_JM3007_MANYTOMANY_UNI_Address (
+    Person_id BIGINT NOT NULL ,
+    addresses_id BIGINT NOT NULL
+);
+
+ALTER TABLE JM3007_MANYTOMANY_UNI_Person_JM3007_MANYTOMANY_UNI_Address
+ADD CONSTRAINT addresses_id_fk
+FOREIGN KEY (addresses_id) REFERENCES JM3007_MANYTOMANY_UNI_Address;
+
+ALTER TABLE JM3007_MANYTOMANY_UNI_Person_JM3007_MANYTOMANY_UNI_Address
+ADD CONSTRAINT Person_id_fk
+FOREIGN KEY (Person_id) REFERENCES JM3007_MANYTOMANY_UNI_Person;
\ No newline at end of file
diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/bi/Assignment.java b/src/com/jm3007/learn/hibernate/association/onetomany/bi/Assignment.java
new file mode 100644
index 0000000..5e7996f
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/bi/Assignment.java
@@ -0,0 +1,68 @@
+package com.jm3007.learn.hibernate.association.onetomany.bi;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_ONETOMANY_BI_ASSIGNMENT")
+public class Assignment {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	public Course getCourse() {
+		return course;
+	}
+
+	public void setCourse(Course course) {
+		this.course = course;
+	}
+
+	@Column(name = "name")
+	private String name;
+
+	@JoinColumn(name="COURSE_ID")
+	@ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.MERGE})
+	private Course course;
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Assignment() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public Assignment(String name) {
+		super();
+		this.name = name;
+	}
+
+	@Override
+	public String toString() {
+		return "Assignment [id=" + id + ", name=" + name + "]";
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/bi/Course.java b/src/com/jm3007/learn/hibernate/association/onetomany/bi/Course.java
new file mode 100644
index 0000000..2c7d67a
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/bi/Course.java
@@ -0,0 +1,78 @@
+package com.jm3007.learn.hibernate.association.onetomany.bi;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_ONETOMANY_BI_COURSE")
+public class Course {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "id")
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@OneToMany(cascade = CascadeType.ALL, mappedBy = "course")
+	private List<Assignment> assignments;
+
+	public Long getId() {
+		return id;
+	}
+
+	public Course(String name) {
+		super();
+		this.name = name;
+	}
+
+	public Course() {
+		super();
+		// TODO Auto-generated constructor stub
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public List<Assignment> getAssignments() {
+		return assignments;
+	}
+
+	public void setAssignments(List<Assignment> assignments) {
+		this.assignments = assignments;
+	}
+
+	public void addAssignment(Assignment assignment) {
+		if (assignments == null) {
+			assignments = new ArrayList<>();
+		}
+		assignment.setCourse(this);
+		assignments.add(assignment);
+	}
+
+	@Override
+	public String toString() {
+		return "Course [id=" + id + ", name=" + name + ", assignments=" + assignments + "]";
+	}
+
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/bi/CourseApp.java b/src/com/jm3007/learn/hibernate/association/onetomany/bi/CourseApp.java
new file mode 100644
index 0000000..7b835d4
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/bi/CourseApp.java
@@ -0,0 +1,37 @@
+package com.jm3007.learn.hibernate.association.onetomany.bi;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class CourseApp {
+	public static void main(String[] args) {
+		SessionFactory sessionFactory = new Configuration().configure("hibernate.cfg.xml")
+				.addAnnotatedClass(Course.class).addAnnotatedClass(Assignment.class).buildSessionFactory();
+
+		Session session = sessionFactory.getCurrentSession();
+
+		try {
+			session.beginTransaction();
+
+			/*Assignment assignemnt = new Assignment("Bi Directional 1");
+			Course course = new Course("Mapping");
+			course.addAssignment(assignemnt);
+			session.save(assignemnt);
+			session.getTransaction().commit();
+*/
+			
+		/*	Assignment assignemnt = new Assignment("Bi Directional 1");
+			Course course = session.get(Course.class, 2L);
+			course.addAssignment(assignemnt);
+			session.save(assignemnt);
+			session.getTransaction().commit();*/
+			
+		Assignment assignment = session.get(Assignment.class, 3L);
+			session.delete(assignment);
+			session.getTransaction().commit();
+		} finally {
+			sessionFactory.close();
+		}
+	}
+}
diff --git a/src/com/jm3007/learn/hibernate/association/onetomany/bi/one-to-many-bi.sql b/src/com/jm3007/learn/hibernate/association/onetomany/bi/one-to-many-bi.sql
new file mode 100644
index 0000000..42f013f
--- /dev/null
+++ b/src/com/jm3007/learn/hibernate/association/onetomany/bi/one-to-many-bi.sql
@@ -0,0 +1,11 @@
+CREATE TABLE JM3007_ONETOMANY_BI_COURSE(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+NAME VARCHAR(50)
+);
+
+CREATE TABLE JM3007_ONETOMANY_BI_ASSIGNMENT(
+ID BIGINT AUTO_INCREMENT PRIMARY KEY,
+NAME VARCHAR(50),
+COURSE_ID BIGINT,
+FOREIGN KEY (COURSE_ID) REFERENCES JM3007_ONETOMANY_BI_COURSE(ID)
+);
\ No newline at end of file
diff --git a/src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java b/src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java
index 631ff74..ce175b8 100644
--- a/src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java
+++ b/src/com/jm3007/learn/hibernate/association/onetoone/bi/Student.java
@@ -55,6 +55,12 @@ public void setStudentDetail(StudentDetail studentDetail) {
 		this.studentDetail = studentDetail;
 	}
 
+	public void addStudentDetail(StudentDetail studentDetail) {
+		studentDetail.setStudent(this);
+		this.studentDetail = studentDetail;
+	}
+
+	
 	public Long getId() {
 		return id;
 	}

From 71d4d6727f109aa2d29a88b129f92133763dc369 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sun, 10 Feb 2019 13:35:22 +0530
Subject: [PATCH 17/19] Spring REST

---
 WebContent/WEB-INF/spring-config.xml          | 37 +++++++++++-
 WebContent/WEB-INF/sql/imp-sql.sql            |  5 ++
 pom.xml                                       | 46 +++++++++++++++
 .../rest/controller/CustomerController.java   | 51 ++++++++++++++++
 .../learn/spring/rest/dao/CustomerDao.java    | 17 ++++++
 .../spring/rest/dao/CustomerDaoImpl.java      | 51 ++++++++++++++++
 .../learn/spring/rest/model/Customer.java     | 59 +++++++++++++++++++
 .../spring/rest/service/CustomerService.java  | 17 ++++++
 .../rest/service/CustomerServiceImpl.java     | 42 +++++++++++++
 9 files changed, 324 insertions(+), 1 deletion(-)
 create mode 100644 WebContent/WEB-INF/sql/imp-sql.sql
 create mode 100644 src/com/jm3007/learn/spring/rest/controller/CustomerController.java
 create mode 100644 src/com/jm3007/learn/spring/rest/dao/CustomerDao.java
 create mode 100644 src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java
 create mode 100644 src/com/jm3007/learn/spring/rest/model/Customer.java
 create mode 100644 src/com/jm3007/learn/spring/rest/service/CustomerService.java
 create mode 100644 src/com/jm3007/learn/spring/rest/service/CustomerServiceImpl.java

diff --git a/WebContent/WEB-INF/spring-config.xml b/WebContent/WEB-INF/spring-config.xml
index 823bc77..60dcd5e 100644
--- a/WebContent/WEB-INF/spring-config.xml
+++ b/WebContent/WEB-INF/spring-config.xml
@@ -17,7 +17,7 @@
 	http://www.springframework.org/schema/aop/spring-aop.xsd">
 
 	<context:component-scan
-		base-package="com.jm3007.learn.spring.web" />
+		base-package="com.jm3007.learn.spring.rest" />
 	<mvc:annotation-driven />
 
 	<bean
@@ -25,4 +25,39 @@
 		<property name="prefix" value="/WEB-INF/view/" />
 		<property name="suffix" value=".jsp" />
 	</bean>
+	
+	<bean id="dataSource"
+		class="com.mchange.v2.c3p0.ComboPooledDataSource"
+		destroy-method="close">
+		<property name="driverClass" value="org.h2.Driver" />
+		<property name="jdbcUrl" value="jdbc:h2:~/test" />
+		<property name="user" value="sa" />
+		<property name="password" value="" />
+
+		<property name="minPoolSize" value="5" />
+		<property name="maxPoolSize" value="10" />
+		<property name="maxIdleTime" value="50000" />
+	</bean>
+
+
+	<bean id="sessionFactory"
+		class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
+		<property name="dataSource" ref="dataSource" />
+		<property name="packagesToScan"
+			value="com.jm3007.learn.spring.rest.model" />
+		<property name="hibernateProperties">
+			<props>
+				<prop key="hibernate.dialect">org.hibernate.dialect.H2Dialect</prop>
+				<prop key="hibernate.show_sql">true</prop>
+				<prop key="connection.autocommit">true</prop>
+			</props>
+		</property>
+	</bean>
+	<bean id="myTransactionMgr"
+		class="org.springframework.orm.hibernate5.HibernateTransactionManager">
+		<property name="sessionFactory" ref="sessionFactory" />
+	</bean>
+
+<tx:annotation-driven transaction-manager="myTransactionMgr" />
+	
 </beans>
\ No newline at end of file
diff --git a/WebContent/WEB-INF/sql/imp-sql.sql b/WebContent/WEB-INF/sql/imp-sql.sql
new file mode 100644
index 0000000..b69bf04
--- /dev/null
+++ b/WebContent/WEB-INF/sql/imp-sql.sql
@@ -0,0 +1,5 @@
+CREATE TABLE JM3007_CUSTOMER(
+ID BIGINT PRIMARY KEY AUTO_INCREMENT,
+NAME VARCHAR(50),
+AGE NUMBER
+)
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 0518fda..924382b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,16 +15,62 @@
 			<artifactId>spring-webmvc</artifactId>
 			<version>5.1.3.RELEASE</version>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-orm</artifactId>
+			<version>5.1.3.RELEASE</version>
+		</dependency>
+
 		<dependency>
 			<groupId>org.hibernate.validator</groupId>
 			<artifactId>hibernate-validator</artifactId>
 			<version>6.0.13.Final</version>
 		</dependency>
+
+
+
 		<dependency>
 			<groupId>org.hibernate</groupId>
 			<artifactId>hibernate-core</artifactId>
 			<version>5.4.0.Final</version>
 		</dependency>
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-c3p0</artifactId>
+			<version>5.4.0.Final</version>
+		</dependency>
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-ehcache</artifactId>
+			<version>5.4.0.Final</version>
+		</dependency>
+		 <dependency>
+            <groupId>net.sf.ehcache</groupId>
+            <artifactId>ehcache</artifactId>
+            <version>2.10.6</version>
+        </dependency>
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-entitymanager</artifactId>
+			<version>5.4.0.Final</version>
+		</dependency>
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-envers</artifactId>
+			<version>5.4.0.Final</version>
+		</dependency>
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-infinispan</artifactId>
+			<version>5.4.0.Final</version>
+		</dependency>
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>2.9.5</version>
+		</dependency>
+
 		<dependency>
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
diff --git a/src/com/jm3007/learn/spring/rest/controller/CustomerController.java b/src/com/jm3007/learn/spring/rest/controller/CustomerController.java
new file mode 100644
index 0000000..30ce79c
--- /dev/null
+++ b/src/com/jm3007/learn/spring/rest/controller/CustomerController.java
@@ -0,0 +1,51 @@
+package com.jm3007.learn.spring.rest.controller;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.jm3007.learn.spring.rest.model.Customer;
+import com.jm3007.learn.spring.rest.service.CustomerService;
+
+@RestController
+@RequestMapping(value = "/rest/v1/customers")
+public class CustomerController {
+
+	@Autowired
+	private CustomerService customerService;
+
+	@PostMapping(value = "/")
+	public Long saveCustomer(@RequestBody Customer customer) {
+		return customerService.saveCustomer(customer);
+	}
+
+	@RequestMapping(value = "/{id}", method = RequestMethod.GET)
+	public Customer getCustomer(@PathVariable("id") Long id) {
+		return customerService.getCustomer(id);
+	}
+
+	@GetMapping("/")
+	public List<Customer> getCustomers() {
+		return customerService.getCustomers();
+	}
+
+	@PutMapping("/")
+	void updateCustomer(@RequestBody Customer customer) {
+		customerService.updateCustomer(customer);
+	}
+
+	@DeleteMapping("/{id}")
+	void deleteCustomer(@PathVariable("id") Long id) {
+		customerService.deleteCustomer(id);
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/rest/dao/CustomerDao.java b/src/com/jm3007/learn/spring/rest/dao/CustomerDao.java
new file mode 100644
index 0000000..32e4eac
--- /dev/null
+++ b/src/com/jm3007/learn/spring/rest/dao/CustomerDao.java
@@ -0,0 +1,17 @@
+package com.jm3007.learn.spring.rest.dao;
+
+import java.util.List;
+
+import com.jm3007.learn.spring.rest.model.Customer;
+
+public interface CustomerDao {
+	Long saveCustomer(Customer customer);
+
+	Customer getCustomer(Long id);
+	
+	List<Customer> getCustomers();
+	
+	void updateCustomer(Customer customer);
+	
+	void deleteCustomer(Long id);
+}
diff --git a/src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java b/src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java
new file mode 100644
index 0000000..a0e3ff2
--- /dev/null
+++ b/src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java
@@ -0,0 +1,51 @@
+package com.jm3007.learn.spring.rest.dao;
+
+import java.util.List;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+import org.springframework.transaction.annotation.Transactional;
+
+import com.jm3007.learn.spring.rest.model.Customer;
+
+@Repository
+public class CustomerDaoImpl implements CustomerDao {
+
+	@Autowired
+	private SessionFactory sessionFactory;
+
+	@Override
+	@Transactional
+	public Long saveCustomer(Customer customer) {
+		return (Long) sessionFactory.openSession().save(customer);
+	}
+
+	@Override
+	@Transactional
+	public Customer getCustomer(Long id) {
+		return sessionFactory.openSession().get(Customer.class, id);
+	}
+
+	@Override
+	@Transactional
+	public List<Customer> getCustomers() {
+		return sessionFactory.openSession().createQuery("from Customer").getResultList();
+	}
+
+	@Override
+	@Transactional
+	public void updateCustomer(Customer customer) {
+		sessionFactory.getCurrentSession().saveOrUpdate(customer);
+	}
+
+	@Override
+	@Transactional
+	public void deleteCustomer(Long id) {
+		Session session = sessionFactory.getCurrentSession();
+		Customer customer = session.get(Customer.class, id);
+		session.delete(customer);
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/rest/model/Customer.java b/src/com/jm3007/learn/spring/rest/model/Customer.java
new file mode 100644
index 0000000..c53e848
--- /dev/null
+++ b/src/com/jm3007/learn/spring/rest/model/Customer.java
@@ -0,0 +1,59 @@
+package com.jm3007.learn.spring.rest.model;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name = "JM3007_CUSTOMER")
+public class Customer {
+
+	@Id
+	@Column(name = "id")
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	private Long id;
+
+	@Column(name = "name")
+	private String name;
+
+	@Column(name = "age")
+	private int age;
+
+	public Customer(String name, int age) {
+		super();
+		this.name = name;
+		this.age = age;
+	}
+
+	public Customer() {
+		super();
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public void setId(Long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public int getAge() {
+		return age;
+	}
+
+	public void setAge(int age) {
+		this.age = age;
+	}
+
+}
diff --git a/src/com/jm3007/learn/spring/rest/service/CustomerService.java b/src/com/jm3007/learn/spring/rest/service/CustomerService.java
new file mode 100644
index 0000000..7927c15
--- /dev/null
+++ b/src/com/jm3007/learn/spring/rest/service/CustomerService.java
@@ -0,0 +1,17 @@
+package com.jm3007.learn.spring.rest.service;
+
+import java.util.List;
+
+import com.jm3007.learn.spring.rest.model.Customer;
+
+public interface CustomerService {
+	Long saveCustomer(Customer customer);
+
+	Customer getCustomer(Long id);
+	
+	List<Customer> getCustomers();
+	
+	void updateCustomer(Customer customer);
+	
+	void deleteCustomer(Long id);
+}
diff --git a/src/com/jm3007/learn/spring/rest/service/CustomerServiceImpl.java b/src/com/jm3007/learn/spring/rest/service/CustomerServiceImpl.java
new file mode 100644
index 0000000..0618e65
--- /dev/null
+++ b/src/com/jm3007/learn/spring/rest/service/CustomerServiceImpl.java
@@ -0,0 +1,42 @@
+package com.jm3007.learn.spring.rest.service;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.jm3007.learn.spring.rest.dao.CustomerDao;
+import com.jm3007.learn.spring.rest.model.Customer;
+
+@Service
+public class CustomerServiceImpl implements CustomerService {
+	
+	@Autowired
+	private CustomerDao customerDao;
+
+	@Override
+	public Long saveCustomer(Customer customer) {
+		return customerDao.saveCustomer(customer);
+	}
+
+	@Override
+	public Customer getCustomer(Long id) {
+		return customerDao.getCustomer(id);
+	}
+
+	@Override
+	public List<Customer> getCustomers() {
+		return customerDao.getCustomers();
+	}
+
+	@Override
+	public void updateCustomer(Customer customer) {
+		customerDao.updateCustomer(customer);
+	}
+
+	@Override
+	public void deleteCustomer(Long id) {
+		customerDao.deleteCustomer(id);
+	}
+
+}

From d6afd17989e65406d8962e8632400844a0b56115 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sat, 16 Feb 2019 11:28:11 +0530
Subject: [PATCH 18/19] AOP

---
 WebContent/WEB-INF/spring-config.xml          |  2 +-
 pom.xml                                       | 15 +++++++----
 .../spring/rest/aspect/LoggingAspect.java     | 27 +++++++++++++++++++
 3 files changed, 38 insertions(+), 6 deletions(-)
 create mode 100644 src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java

diff --git a/WebContent/WEB-INF/spring-config.xml b/WebContent/WEB-INF/spring-config.xml
index 60dcd5e..561122d 100644
--- a/WebContent/WEB-INF/spring-config.xml
+++ b/WebContent/WEB-INF/spring-config.xml
@@ -15,7 +15,7 @@
                            http://www.springframework.org/schema/tx/spring-tx.xsd
                            http://www.springframework.org/schema/aop
 	http://www.springframework.org/schema/aop/spring-aop.xsd">
-
+<aop:aspectj-autoproxy />
 	<context:component-scan
 		base-package="com.jm3007.learn.spring.rest" />
 	<mvc:annotation-driven />
diff --git a/pom.xml b/pom.xml
index 924382b..ba5e779 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,6 +15,11 @@
 			<artifactId>spring-webmvc</artifactId>
 			<version>5.1.3.RELEASE</version>
 		</dependency>
+		<dependency>
+			<groupId>org.aspectj</groupId>
+			<artifactId>aspectjweaver</artifactId>
+			<version>1.9.2</version>
+		</dependency>
 
 		<dependency>
 			<groupId>org.springframework</groupId>
@@ -45,11 +50,11 @@
 			<artifactId>hibernate-ehcache</artifactId>
 			<version>5.4.0.Final</version>
 		</dependency>
-		 <dependency>
-            <groupId>net.sf.ehcache</groupId>
-            <artifactId>ehcache</artifactId>
-            <version>2.10.6</version>
-        </dependency>
+		<dependency>
+			<groupId>net.sf.ehcache</groupId>
+			<artifactId>ehcache</artifactId>
+			<version>2.10.6</version>
+		</dependency>
 		<dependency>
 			<groupId>org.hibernate</groupId>
 			<artifactId>hibernate-entitymanager</artifactId>
diff --git a/src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java b/src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java
new file mode 100644
index 0000000..d95e401
--- /dev/null
+++ b/src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java
@@ -0,0 +1,27 @@
+package com.jm3007.learn.spring.rest.aspect;
+
+import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.annotation.After;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Before;
+import org.aspectj.lang.annotation.Pointcut;
+import org.springframework.stereotype.Component;
+
+@Component
+@Aspect
+public class LoggingAspect {
+
+	@Pointcut("execution (* com.jm3007.learn.spring.rest.*.*.get*(..))")
+	public void allTheMethodsInLayers() {
+	}
+
+	@Before(value = "allTheMethodsInLayers()")
+	public void doSomething(JoinPoint joinPoint) {
+		System.out.println(">> " + joinPoint.getSignature().getName());
+	}
+
+	@After(value = "allTheMethodsInLayers()")
+	public void doAnotherThing(JoinPoint joinPoint) {
+		System.out.println("<< " + joinPoint.getSignature().getName());
+	}
+}

From 0e7557c01f8b9b2e88bed958553447699e995b71 Mon Sep 17 00:00:00 2001
From: Code WellnWill <code.wnw@gmail.com>
Date: Sun, 17 Feb 2019 10:53:09 +0530
Subject: [PATCH 19/19] AOP

---
 .../spring/rest/aspect/LoggingAspect.java     | 51 +++++++++++++++++--
 .../spring/rest/dao/CustomerDaoImpl.java      |  6 ++-
 2 files changed, 53 insertions(+), 4 deletions(-)

diff --git a/src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java b/src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java
index d95e401..d757e9d 100644
--- a/src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java
+++ b/src/com/jm3007/learn/spring/rest/aspect/LoggingAspect.java
@@ -1,27 +1,72 @@
 package com.jm3007.learn.spring.rest.aspect;
 
+import java.util.Collections;
+import java.util.List;
+
 import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.ProceedingJoinPoint;
 import org.aspectj.lang.annotation.After;
+import org.aspectj.lang.annotation.AfterReturning;
+import org.aspectj.lang.annotation.AfterThrowing;
+import org.aspectj.lang.annotation.Around;
 import org.aspectj.lang.annotation.Aspect;
 import org.aspectj.lang.annotation.Before;
 import org.aspectj.lang.annotation.Pointcut;
 import org.springframework.stereotype.Component;
 
+import com.jm3007.learn.spring.rest.model.Customer;
+
 @Component
 @Aspect
 public class LoggingAspect {
 
-	@Pointcut("execution (* com.jm3007.learn.spring.rest.*.*.get*(..))")
+	@Pointcut("execution (* com.jm3007.learn.spring.rest.*.*.*(..))")
 	public void allTheMethodsInLayers() {
 	}
 
+	@Pointcut("execution (* com.jm3007.learn.spring.rest.*.*.get*(..))")
+	public void allGetMethodsInLayers() {
+	}
+
+	@Pointcut("execution (* com.jm3007.learn.spring.rest.dao.CustomerDaoImpl.getCustomers(..))")
+	public void getCustomersMethodInDao() {
+	}
+
 	@Before(value = "allTheMethodsInLayers()")
 	public void doSomething(JoinPoint joinPoint) {
-		System.out.println(">> " + joinPoint.getSignature().getName());
+		System.out.println(
+				">> " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
 	}
 
-	@After(value = "allTheMethodsInLayers()")
+	@After(value = "allGetMethodsInLayers()")
 	public void doAnotherThing(JoinPoint joinPoint) {
 		System.out.println("<< " + joinPoint.getSignature().getName());
 	}
+
+	@AfterReturning(pointcut = "allGetMethodsInLayers()", returning = "retVal")
+	public void afterReturning(Object retVal) {
+		if (retVal instanceof Customer) {
+			System.out.println(((Customer) retVal).getName());
+		}
+	}
+
+	@AfterThrowing(pointcut = "allGetMethodsInLayers()", throwing = "ex")
+	public void afterThrowing(Exception ex) {
+		System.out.println("------" + ex.getMessage());
+	}
+	
+	@Around(value="getCustomersMethodInDao()")
+	public void getCustomersMethodAdvice(ProceedingJoinPoint proceedingJoinPoint) throws Throwable{
+		//pre-processing: like Before Advice of around
+		System.out.println("I'm here");
+		
+//		Object obj = proceedingJoinPoint.proceed();
+		
+		//post-processing: like After Advice of around
+//		if(obj instanceof List) {
+//			System.out.println(((List<Customer>) obj).get(0).getName());
+//		}
+//		return Collections.emptyList();
+	}
+
 }
diff --git a/src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java b/src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java
index a0e3ff2..938235d 100644
--- a/src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java
+++ b/src/com/jm3007/learn/spring/rest/dao/CustomerDaoImpl.java
@@ -25,7 +25,11 @@ public Long saveCustomer(Customer customer) {
 	@Override
 	@Transactional
 	public Customer getCustomer(Long id) {
-		return sessionFactory.openSession().get(Customer.class, id);
+		Customer c = sessionFactory.openSession().get(Customer.class, id);
+		if(c == null) {
+			throw new RuntimeException("Customer Not Found!!!");
+		}
+		return c;
 	}
 
 	@Override