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Simple Annotation Processor

Overview

This project demonstrates the use of custom annotations and annotation processing in Java. It includes a custom annotation @DTO and an annotation processor DTOProcessor that generates Data Transfer Object (DTO) classes based on the annotated fields.

Project Structure

  • simple-annotationprocessor: Contains the custom annotations and the annotation processor.
  • simple-annotationprocessor-test: Contains test classes to demonstrate the usage of the annotations and the generated DTOs.

Annotations

@DTO

The @DTO annotation is used to specify fields that should be included in a generated DTO class. A separate DTO class is generated for each unique combination of class and value.

Source

@DTOs

The @DTOs annotation is used to make the @DTO annotation repeatable.

Source

Annotation Processor

The DTOProcessor class processes the @DTO annotations and generates DTO classes.

Source

Usage

Example

Here is an example of how to use the @DTO annotation and the generated DTO classes.

Person Class

Source

Test Class

Source

Building the Project

To build the project, use the Maven Wrapper:

./mvnw clean install

Running the Project

To run the project using the exec:java plugin, use the following command:

./mvnw install
 ./mvnw -pl simple-annotationprocessor-test/ exec:java \
        -Dexec.mainClass="fr.univtln.bruno.samples.Test"

License

This project is licensed under the MIT License.