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…p-5-d into feature/continuationTableRelations # Conflicts: # src/main/java/org/example/pojo/Actor.java # src/main/java/org/example/pojo/Director.java # src/main/java/org/example/pojo/Genre.java # src/main/java/org/example/pojo/Movie.java # src/main/java/org/example/pojo/User.java
…, director, actor, user, ratings and favorites Co-authored-by: Oscar Nidemar <oscar.nidemar@gmail.com> Co-authored-by: Oskar Lundqvist <oskar.lundqvist3@icloud.com> Co-authored-by: Mark Cavric <cavric_123@hotmail.se> Co-authored-by: Linus Westling <westling.linus@gmail.com>
…s an average from user_rating table.
WalkthroughThis PR refactors a JPA-based movie database project by reorganizing seeding classes into a dedicated Changes
Sequence Diagram(s)sequenceDiagram
participant App
participant SeedActors
participant SeedDirectors
participant SeedGenres
participant SeedMovies
participant MovieRepoJpa
participant SeedMovieRelations
participant SeedUsers
participant UserRepoJpa
participant SeedUserRelations
participant UserRatingRepoJpa
participant EntityManager
App->>SeedActors: seed()
SeedActors->>SeedActors: create Map<String, Actor>
SeedActors-->>App: Map<String, Actor>
App->>SeedDirectors: seed()
SeedDirectors-->>App: Map<String, Director>
App->>SeedGenres: seed()
SeedGenres-->>App: Map<String, Genre>
App->>SeedMovies: seedMovies()
SeedMovies->>MovieRepoJpa: addMovie(...)
SeedMovies-->>App: Map<String, Movie>
rect rgb(100, 180, 200)
Note over App,EntityManager: Attach Relationships
App->>SeedMovieRelations: attachRelations(actors, directors, genres, movieRepo)
SeedMovieRelations->>MovieRepoJpa: setDirector(title, director)
SeedMovieRelations->>MovieRepoJpa: addActors(title, actors)
SeedMovieRelations->>MovieRepoJpa: addGenres(title, genres)
SeedMovieRelations->>EntityManager: flush() + clear()
end
App->>SeedUsers: seed()
SeedUsers->>UserRepoJpa: addUser(name, password)
SeedUsers-->>App: Map<String, User>
rect rgb(150, 200, 150)
Note over App,EntityManager: Seed User Relationships
App->>SeedUserRelations: seedFavoritesAndRatings(users, movies)
SeedUserRelations->>UserRepoJpa: addFavoriteMovie(userId, movie)
SeedUserRelations->>UserRatingRepoJpa: rateMovie(user, movie, rating)
SeedUserRelations->>EntityManager: flush() + clear()
end
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Actionable comments posted: 14
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⚠️ Outside diff range comments (1)
src/main/java/org/example/App.java (1)
62-66: Add logging or rethrow exception after rollback.The exception handler catches
RuntimeExceptionand rolls back the transaction but silently swallows the exception. This makes debugging seed failures difficult.Apply this diff:
} catch (RuntimeException e) { if (tx.isActive()) { tx.rollback(); } + throw e; // or log the exception }
🧹 Nitpick comments (17)
src/main/java/org/example/pojo/Genre.java (1)
4-4: Unused import.
GenreRepois imported but never used in this entity class.-import org.example.repo.GenreRepo;src/main/java/org/example/repo/MovieRepo.java (2)
27-27: PreferLocalDateoverStringfor date parameters.
LocalDateis already used inaddMovie(line 15). UsingStringfor date range parameters loses type safety and pushes parsing responsibility to implementations.- List<Movie> getMovieByReleaseDate(String from, String to); + List<Movie> getMovieByReleaseDate(LocalDate from, LocalDate to);
27-31: Naming inconsistency:getBy*vsgetMovieBy*.Existing methods use
getByDirector,getByActor, while new methods usegetMovieByReleaseDate,getMovieByLength, etc. Consider aligning naming for consistency.src/main/java/org/example/seed/SeedUserRelations.java (1)
41-42: Consider clarifying the need for flush() and clear().The
em.flush()andem.clear()pattern is used here after seeding all user relations. While this can help with memory management during batch operations, it's worth noting that:
flush()synchronizes the persistence context with the databaseclear()detaches all managed entitiesThis is fine for seeding, but ensure this doesn't cause issues if the returned
usersormoviesMapobjects are expected to remain managed after this method returns.src/main/java/org/example/jpaimpl/UserRatingRepoJpa.java (1)
84-118: Consider adding rating range validation.The seeding code uses ratings between 1.0 and 5.0, but
rateMoviedoesn't validate the range. Consider adding validation to ensure data integrity.Add validation after line 86:
if (user == null || movie == null) throw new IllegalArgumentException("User or Movie cannot be null"); + if (rating < 1.0f || rating > 5.0f) throw new IllegalArgumentException("Rating must be between 1.0 and 5.0");src/main/java/org/example/repo/ActorRepo.java (1)
13-13: Consider renaminggetCountryfor clarity.The method name
getCountry(Country country)doesn't clearly convey that it returns a list of actors. Consider renaming tofindByCountry(Country country)orgetActorsByCountry(Country country)to follow standard repository naming conventions and improve readability.src/main/java/org/example/repo/DirectorRepo.java (1)
13-13: Consider renaminggetCountryfor clarity.Same as in
ActorRepo, the method namegetCountry(Country country)doesn't clearly indicate it returns directors. Consider renaming tofindByCountry(Country country)orgetDirectorsByCountry(Country country)for consistency and clarity.src/main/java/org/example/jpaimpl/UserRepoJpa.java (1)
108-115: Consider throwing exception instead of silent failure.The method silently returns if
userormovieis null (line 111), which makes debugging difficult. Consider either:
- Throwing
IllegalArgumentExceptionfor invalid inputs (consistent withUserRatingRepoJpa.rateMovie)- Returning a
booleanto indicate success/failure (consistent withremoveFavoriteMovie)Option 1 (preferred for consistency with
rateMovie):public void addFavoriteMovie(long userId, Movie movie) { + if (movie == null) throw new IllegalArgumentException("Movie cannot be null"); User user = em.find(User.class, userId); - if (user == null || movie == null) return; + if (user == null) throw new IllegalArgumentException("User not found with id: " + userId); user.addFavoriteMovie(movie); em.merge(user); }src/main/java/org/example/pojo/Actor.java (1)
49-58: The current implementation is actually safe, but the id-only equals/hashCode pattern remains risky.While your concern about id-based equality is a valid JPA anti-pattern, verification shows the codebase handles it correctly: actors are persisted via
ActorRepoJpa.addActor()(which callsem.persist()) before being added toMovie.actorsHashSet. Since actors have non-null IDs when added to collections, the hashCode mutation problem doesn't occur in the current seeding flow.However, this pattern is fragile and could break if:
- Future code adds transient actors to collections before persistence
- The bidirectional relationship (Actor.movies also uses HashSet) is modified
Recommendation: Document the assumption that actors must be persisted before adding to Movie collections, or refactor to use business-key equality (e.g., actorName + country) for robustness. The current code is functional but the pattern should be treated as a technical debt requiring developer discipline.
src/main/java/org/example/seed/SeedUsers.java (1)
79-151: Remove commented-out dead code.The commented-out alternative implementation (lines 79-151) should be removed to improve maintainability. If this code needs to be preserved for reference, consider using version control history instead.
Apply this diff:
- /* - public void seedUsers() { - UserRepoJpa userRepo = new UserRepoJpa(em); - - String[][] users = { - {"AliceSmith", "pass123"}, - {"BobJones", "qwerty"}, - ... - }; - - int i = 0; - for (String[] u : users) { - userRepo.addUser(u[0], u[1]); - i++; - if (i % 20 == 0) { - em.flush(); - em.clear(); - } - } - } - - */src/main/java/org/example/seed/SeedActors.java (1)
46-46: Consider aligning map key with stored actor name.The map key is
"Ellen Page"while the stored actor name is"Elliot Page". Although this works for immediate map lookups in seeding (Line 115 in SeedMovieRelations uses the key), it creates inconsistency between the lookup key and the persisted entity name. Consider using"Elliot Page"as the key to match the stored name.Apply this diff:
- actors.put("Ellen Page", actorRepo.addActor("Elliot Page", Country.CANADA)); // uppdaterat namn + actors.put("Elliot Page", actorRepo.addActor("Elliot Page", Country.CANADA)); // uppdaterat namnAnd update the corresponding reference in SeedMovieRelations.java (line 115):
- actors.get("Ellen Page") + actors.get("Elliot Page")src/main/java/org/example/App.java (1)
75-105: Remove or implement the printOptions placeholder.The
printOptions()method contains only commented-out UI planning notes. Either implement the method or remove it to avoid dead code.src/main/java/org/example/pojo/UserRating.java (1)
27-27: Use consistent type for rating field.The
ratingfield is declared asdouble(line 15), but the constructor (line 27) and setter (line 55) acceptfloatparameters. This creates type inconsistency. Consider usingdoublethroughout for consistency.Apply this diff:
- public UserRating(User user, Movie movie, float rating) { + public UserRating(User user, Movie movie, double rating) { this.user = user; this.movie = movie; this.rating = rating; }- public void setRating(float rating) { + public void setRating(double rating) { this.rating = rating; }Also applies to: 55-55
src/main/java/org/example/repo/UserRatingRepo.java (2)
12-13: Inconsistent numeric types for rating values.
getRatingForMovieByUserreturnsOptional<Float>whilegetAverageRatingForMoviereturnsOptional<Double>. Consider using a consistent type (preferablyDoublefor averages to avoid precision loss).
20-20: Consider a typed DTO instead ofList<Object[]>.
getAverageRatings()returnsList<Object[]>, which loses type safety and requires callers to cast elements. A simple record likerecord MovieRating(Long movieId, Double avgRating)would improve clarity and type safety.src/main/java/org/example/jpaimpl/MovieRepoJpa.java (1)
4-4: Unused import.
NoResultExceptionis imported but never used sincefindByTitleOptionalusesgetResultStream().findFirst().-import jakarta.persistence.NoResultException;src/main/java/org/example/pojo/Movie.java (1)
66-69: Defensive copy pattern is good but exposes mutable internal collection via getter.
setActorsandsetGenresproperly clear and re-add, butgetActors()andgetGenres()return the internal mutableSetdirectly. Callers can bypass the setter and mutate the collection. For full encapsulation, consider returning an unmodifiable view or a copy.- public Set<Actor> getActors() { return actors; } + public Set<Actor> getActors() { return Collections.unmodifiableSet(actors); }Also applies to: 72-75
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📒 Files selected for processing (31)
src/main/java/org/example/App.java(3 hunks)src/main/java/org/example/SeedActors.java(0 hunks)src/main/java/org/example/SeedUsers.java(0 hunks)src/main/java/org/example/enums/Country.java(1 hunks)src/main/java/org/example/jpaimpl/ActorRepoJpa.java(0 hunks)src/main/java/org/example/jpaimpl/MovieRepoJpa.java(1 hunks)src/main/java/org/example/jpaimpl/UserRatingRepoJpa.java(1 hunks)src/main/java/org/example/jpaimpl/UserRepoJpa.java(4 hunks)src/main/java/org/example/pojo/Actor.java(1 hunks)src/main/java/org/example/pojo/Director.java(1 hunks)src/main/java/org/example/pojo/Genre.java(2 hunks)src/main/java/org/example/pojo/Movie.java(1 hunks)src/main/java/org/example/pojo/User.java(2 hunks)src/main/java/org/example/pojo/UserRating.java(1 hunks)src/main/java/org/example/repo/ActorRepo.java(1 hunks)src/main/java/org/example/repo/DirectorRepo.java(1 hunks)src/main/java/org/example/repo/GenreRepo.java(1 hunks)src/main/java/org/example/repo/MovieRepo.java(1 hunks)src/main/java/org/example/repo/UserRatingRepo.java(1 hunks)src/main/java/org/example/repo/UserRepo.java(1 hunks)src/main/java/org/example/seed/SeedActors.java(1 hunks)src/main/java/org/example/seed/SeedDirectors.java(3 hunks)src/main/java/org/example/seed/SeedGenres.java(1 hunks)src/main/java/org/example/seed/SeedMovieRelations.java(1 hunks)src/main/java/org/example/seed/SeedMovies.java(3 hunks)src/main/java/org/example/seed/SeedUserRelations.java(1 hunks)src/main/java/org/example/seed/SeedUsers.java(1 hunks)src/main/java/org/example/unusedRepos/MovieActorRepo.java(0 hunks)src/main/java/org/example/unusedRepos/MovieDirectorRepo.java(0 hunks)src/main/java/org/example/unusedRepos/MovieGenreRepo.java(0 hunks)src/main/java/org/example/unusedRepos/UserFavoritesRepo.java(0 hunks)
💤 Files with no reviewable changes (7)
- src/main/java/org/example/unusedRepos/UserFavoritesRepo.java
- src/main/java/org/example/unusedRepos/MovieDirectorRepo.java
- src/main/java/org/example/unusedRepos/MovieActorRepo.java
- src/main/java/org/example/unusedRepos/MovieGenreRepo.java
- src/main/java/org/example/jpaimpl/ActorRepoJpa.java
- src/main/java/org/example/SeedActors.java
- src/main/java/org/example/SeedUsers.java
🧰 Additional context used
🧬 Code graph analysis (6)
src/main/java/org/example/App.java (1)
src/main/java/org/example/jpaimpl/MovieRepoJpa.java (1)
MovieRepoJpa(19-151)
src/main/java/org/example/seed/SeedUserRelations.java (2)
src/main/java/org/example/jpaimpl/UserRatingRepoJpa.java (1)
UserRatingRepoJpa(12-120)src/main/java/org/example/jpaimpl/UserRepoJpa.java (1)
UserRepoJpa(13-135)
src/main/java/org/example/seed/SeedActors.java (1)
src/main/java/org/example/jpaimpl/ActorRepoJpa.java (1)
ActorRepoJpa(11-85)
src/main/java/org/example/seed/SeedUsers.java (1)
src/main/java/org/example/jpaimpl/UserRepoJpa.java (1)
UserRepoJpa(13-135)
src/main/java/org/example/seed/SeedMovieRelations.java (1)
src/main/java/org/example/jpaimpl/MovieRepoJpa.java (1)
MovieRepoJpa(19-151)
src/main/java/org/example/pojo/UserRating.java (5)
src/main/java/org/example/pojo/Actor.java (1)
Entity(10-59)src/main/java/org/example/pojo/Director.java (1)
Entity(10-52)src/main/java/org/example/pojo/Genre.java (1)
Entity(8-63)src/main/java/org/example/pojo/Movie.java (1)
Entity(10-96)src/main/java/org/example/pojo/User.java (1)
Entity(10-85)
🔇 Additional comments (16)
src/main/java/org/example/pojo/Director.java (1)
43-51: Caution: id-based equals/hashCode can break with transient entities.When
idis null (before persist), all newDirectorinstances will be considered equal and have the same hash code. This breaksHashSet/HashMapbehavior if you add multiple unpersisted directors to a collection.This is a known JPA trade-off. If you use collections of transient entities, consider using a business key or a UUID assigned at construction time instead.
src/main/java/org/example/pojo/User.java (1)
74-84: Same transient entity caveat applies here.As with the other entities, id-based equals/hashCode will treat all unpersisted
Userinstances as equal. Ensure transient users aren't added to hash-based collections before persistence.src/main/java/org/example/seed/SeedGenres.java (1)
1-1: Package reorganization looks good.Moving seed utilities to
org.example.seedimproves project organization by clearly separating seeding logic from domain and repository code.src/main/java/org/example/enums/Country.java (1)
17-19: LGTM!The addition of KENYA and PUERTO_RICO enum constants is clean and follows Java enum conventions. The trailing comma after UK is a good practice for easier future additions.
src/main/java/org/example/seed/SeedMovies.java (2)
1-1: LGTM! Good refactoring.Moving seed classes to a dedicated
org.example.seedpackage improves code organization and maintainability.
21-21: LGTM! Return type change enables relation seeding.Returning
Map<String, Movie>allows downstream seeding operations (likeSeedMovieRelationsandSeedUserRelations) to reference the seeded movies, which is a necessary change for the relationship management introduced in this PR.Also applies to: 100-100
src/main/java/org/example/jpaimpl/UserRepoJpa.java (2)
41-52: LGTM! Clean implementation.The
findByUserNamemethod correctly usesgetResultStream().findFirst()to return anOptional<User>, following best practices for nullable results.
108-133: User entity correctly implements favorite movie management methods.The User entity at line 67-72 contains both
addFavoriteMovie()andremoveFavoriteMovie()methods that properly manage thefavoriteMoviesSet. The relationship is correctly defined as a @manytomany mapping with a join table at lines 24-29, allowing the repository methods to safely add and remove movies from the user's favorites.src/main/java/org/example/seed/SeedDirectors.java (2)
1-1: LGTM! Package reorganization aligns with seeding refactor.The move to
org.example.seedpackage improves code organization by consolidating all seeding utilities.
45-72: LGTM! Expanded director seed data supports new movie relations.The additions include both real directors (Jon Watts, the Russo brothers, George Lucas, etc.) and fictional placeholders, which align with the movie seeding strategy visible in SeedMovieRelations.
src/main/java/org/example/repo/GenreRepo.java (1)
12-12: LGTM! Duplicate method declaration removed.The consolidation of the
getAllGenres()declaration improves interface clarity.src/main/java/org/example/seed/SeedActors.java (1)
19-109: LGTM! Comprehensive actor seeding with proper country associations.The seed data covers a wide range of real actors and fictional placeholders, properly utilizing the expanded Country enum (including KENYA, PUERTO_RICO, ROMANIA). The structure aligns well with the seeding strategy.
src/main/java/org/example/repo/UserRepo.java (1)
13-14: LGTM! Favorites management API added.The new methods
getFavoriteMovies,addFavoriteMovie,removeFavoriteMovie, andfindByUserNameprovide comprehensive user favorites management functionality that aligns with the relationship-seeding workflow introduced in this PR.Also applies to: 18-18, 22-22
src/main/java/org/example/App.java (1)
35-58: LGTM! Well-structured seeding workflow.The seeding sequence logically seeds base entities first (genres, actors, directors, movies, users), then establishes relationships (movie relations, user favorites/ratings). The use of maps returned by seed methods enables efficient relation attachment.
src/main/java/org/example/seed/SeedMovieRelations.java (1)
20-445: LGTM! Comprehensive movie relation attachment with proper EntityManager management.The method systematically attaches directors, actors, and genres to movies using the provided repository. The
em.flush()andem.clear()at the end properly manage the persistence context. The structure is clear and maintainable despite the repetitive nature.src/main/java/org/example/pojo/UserRating.java (1)
12-24: LGTM! UserRating entity properly implements JPA relationships and identity.The entity correctly maps the many-to-one relationships with User and Movie, and implements id-based equality consistent with other entities in the codebase. The JPA annotations are appropriate for the relationship structure.
Also applies to: 34-69
| public class App { | ||
| public static void main(String[] args) { | ||
|
|
||
| static void main(String[] args) { |
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Restore public modifier to main method entry point.
The main method at line 15 is missing the public modifier, deviating from Java entry point convention. This should be public static void main(String[] args) to follow standard practice.
- static void main(String[] args) {
+ public static void main(String[] args) {📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| static void main(String[] args) { | |
| public static void main(String[] args) { |
🤖 Prompt for AI Agents
In src/main/java/org/example/App.java around line 15, the main method is
declared as "static void main(String[] args)" but must be the standard public
entry point; change the method signature to include the public modifier so it
reads "public static void main(String[] args)" to restore the proper Java
application entry point.
| public Movie addMovie(String title, | ||
| LocalDate releaseDate, | ||
| int length, | ||
| Country country, | ||
| Language language, | ||
| Director director, | ||
| List<Actor> actors, | ||
| List<Genre> genres) { | ||
| Optional<Movie> existing = findByTitleOptional(title); | ||
|
|
||
| if (existing.isPresent()) { | ||
| Movie movie = existing.get(); | ||
| movie.setDirector(director); | ||
| movie.setActors(Set.copyOf(actors)); | ||
| movie.setGenres(Set.copyOf(genres)); | ||
| return movie; | ||
| } else { | ||
| Movie movie = new Movie(); | ||
| movie.setTitle(title); | ||
| movie.setReleaseDate(date); | ||
| movie.setTitle(title.trim()); | ||
| movie.setReleaseDate(releaseDate); | ||
| movie.setLength(length); | ||
| movie.setCountry(country); | ||
| movie.setLanguage(language); | ||
| movie.setDirector(director); | ||
| movie.setActors(Set.copyOf(actors)); | ||
| movie.setGenres(Set.copyOf(genres)); | ||
| em.persist(movie); | ||
| return movie; | ||
| } | ||
| } |
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Inconsistent update behavior between addMovie overloads.
The first addMovie overload (lines 28-61) updates metadata (releaseDate, length, country, language) when a movie exists. This overload only updates relations (director, actors, genres) but ignores metadata fields. This inconsistency may lead to unexpected behavior.
Consider aligning the update logic:
if (existing.isPresent()) {
Movie movie = existing.get();
+ movie.setReleaseDate(releaseDate);
+ movie.setLength(length);
+ movie.setCountry(country);
+ movie.setLanguage(language);
movie.setDirector(director);
movie.setActors(Set.copyOf(actors));
movie.setGenres(Set.copyOf(genres));
return movie;📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| public Movie addMovie(String title, | |
| LocalDate releaseDate, | |
| int length, | |
| Country country, | |
| Language language, | |
| Director director, | |
| List<Actor> actors, | |
| List<Genre> genres) { | |
| Optional<Movie> existing = findByTitleOptional(title); | |
| if (existing.isPresent()) { | |
| Movie movie = existing.get(); | |
| movie.setDirector(director); | |
| movie.setActors(Set.copyOf(actors)); | |
| movie.setGenres(Set.copyOf(genres)); | |
| return movie; | |
| } else { | |
| Movie movie = new Movie(); | |
| movie.setTitle(title); | |
| movie.setReleaseDate(date); | |
| movie.setTitle(title.trim()); | |
| movie.setReleaseDate(releaseDate); | |
| movie.setLength(length); | |
| movie.setCountry(country); | |
| movie.setLanguage(language); | |
| movie.setDirector(director); | |
| movie.setActors(Set.copyOf(actors)); | |
| movie.setGenres(Set.copyOf(genres)); | |
| em.persist(movie); | |
| return movie; | |
| } | |
| } | |
| public Movie addMovie(String title, | |
| LocalDate releaseDate, | |
| int length, | |
| Country country, | |
| Language language, | |
| Director director, | |
| List<Actor> actors, | |
| List<Genre> genres) { | |
| Optional<Movie> existing = findByTitleOptional(title); | |
| if (existing.isPresent()) { | |
| Movie movie = existing.get(); | |
| movie.setReleaseDate(releaseDate); | |
| movie.setLength(length); | |
| movie.setCountry(country); | |
| movie.setLanguage(language); | |
| movie.setDirector(director); | |
| movie.setActors(Set.copyOf(actors)); | |
| movie.setGenres(Set.copyOf(genres)); | |
| return movie; | |
| } else { | |
| Movie movie = new Movie(); | |
| movie.setTitle(title.trim()); | |
| movie.setReleaseDate(releaseDate); | |
| movie.setLength(length); | |
| movie.setCountry(country); | |
| movie.setLanguage(language); | |
| movie.setDirector(director); | |
| movie.setActors(Set.copyOf(actors)); | |
| movie.setGenres(Set.copyOf(genres)); | |
| em.persist(movie); | |
| return movie; | |
| } | |
| } |
🤖 Prompt for AI Agents
In src/main/java/org/example/jpaimpl/MovieRepoJpa.java around lines 64 to 93,
the addMovie overload updates only relations for an existing Movie but not
metadata (releaseDate, length, country, language), causing inconsistent behavior
with the other overload; update the existing Movie to also set releaseDate,
length, country, language (and trim/set title if appropriate) before returning,
and keep em.persist only for the new-movie branch so you consistently update
both metadata and relations on existing entities.
| @Transactional | ||
| public boolean deleteMovie(long id) { | ||
| Movie movie = em.find(Movie.class, id); | ||
| if (movie != null) { | ||
| em.remove(movie); | ||
| return true; | ||
| } | ||
| return false; | ||
| } |
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rg -n "new MovieRepoJpa" --type java
echo "=== Looking for DI annotations with MovieRepoJpa ==="
rg -n "@Inject|@Autowired" --type java -A 3 | grep -B 3 -A 3 "MovieRepoJpa"
echo "=== Checking MovieRepoJpa class definition and scope ==="
fd "MovieRepoJpa.java" --type f -x cat -n {}Repository: ithsjava25/project-jpa-grupp-5-d
Length of output: 6197
@transactional annotations are ineffective—MovieRepoJpa is instantiated directly.
MovieRepoJpa is instantiated directly (not via dependency injection) in src/main/java/org/example/App.java:53 and src/main/java/org/example/seed/SeedMovies.java:22. Container interception is required for @Transactional to work; direct instantiation via new MovieRepoJpa(em) bypasses this interception, causing these annotations to have no effect:
deleteMovie(line 114)setDirector(line 125)addActors(line 134)addGenres(line 143)
Remove the @Transactional annotations or refactor to inject the repository as a CDI/Spring bean.
🤖 Prompt for AI Agents
In src/main/java/org/example/jpaimpl/MovieRepoJpa.java around lines 114-122,
@Transactional on deleteMovie is ineffective because MovieRepoJpa is created
directly with new (bypassing container interception). Fix by either (A) removing
@Transactional from the methods and manage transactions manually in callers, or
(B) make MovieRepoJpa a managed bean (e.g., annotate the class with the
appropriate CDI/Spring stereotype such as @ApplicationScoped/@Repository) and
replace the direct instantiations in src/main/java/org/example/App.java and
src/main/java/org/example/seed/SeedMovies.java with container injection
(@Inject/@Autowired), ensuring the persistence context is injected and
transactions are enabled so @Transactional will be honored.
| public void setDirector(String title, Director director) { | ||
| Movie m = findByTitleOptional(title).orElse(null); | ||
| if (m != null) { | ||
| m.setDirector(director); | ||
| em.merge(m); | ||
| } |
There was a problem hiding this comment.
Silent failure when movie is not found.
setDirector, addActors, and addGenres silently do nothing if the movie title doesn't exist. Consider throwing an exception or returning a boolean to indicate success/failure, allowing callers to handle missing movies appropriately.
@Transactional
public void setDirector(String title, Director director) {
- Movie m = findByTitleOptional(title).orElse(null);
- if (m != null) {
- m.setDirector(director);
- em.merge(m);
- }
+ Movie m = findByTitleOptional(title)
+ .orElseThrow(() -> new IllegalArgumentException("Movie not found: " + title));
+ m.setDirector(director);
+ em.merge(m);
}Also applies to: 135-140, 144-149
🤖 Prompt for AI Agents
In src/main/java/org/example/jpaimpl/MovieRepoJpa.java around lines 126-131 (and
similarly at 135-140 and 144-149), the mutator methods silently return when the
movie title is not found; change them to fail-fast by throwing a specific
exception (e.g., EntityNotFoundException or a custom MovieNotFoundException)
with a clear message when findByTitleOptional(title) is empty, and remove the
silent null-check branch; ensure the method signatures and callers are updated
to either propagate or handle the exception (alternatively, if you prefer a
non-exception approach, change the return type to boolean and return true on
success / false when movie not found, updating all callers accordingly).
| @Override | ||
| public void rateMovie(User user, Movie movie, float rating) { | ||
| if (user == null || movie == null) throw new IllegalArgumentException("User or Movie cannot be null"); | ||
|
|
||
| // Check if rating already exists | ||
| Optional<UserRating> existing = em.createQuery( | ||
| "SELECT ur FROM UserRating ur WHERE ur.user = :user AND ur.movie = :movie", | ||
| UserRating.class) | ||
| .setParameter("user", user) | ||
| .setParameter("movie", movie) | ||
| .getResultStream() | ||
| .findFirst(); | ||
|
|
||
| // If already rated, update rating | ||
| UserRating userRating; | ||
| if (existing.isPresent()) { | ||
| userRating = existing.get(); | ||
| userRating.setRating(rating); | ||
| em.merge(userRating); | ||
| } else { | ||
| userRating = new UserRating(user, movie, rating); | ||
| em.persist(userRating); | ||
| } | ||
|
|
||
| // Update movie ranking | ||
| Double avg = em.createQuery( | ||
| "SELECT AVG(ur.rating) FROM UserRating ur WHERE ur.movie = :movie", | ||
| Double.class) | ||
| .setParameter("movie", movie) | ||
| .getSingleResult(); | ||
|
|
||
| movie.setRanking(avg); | ||
| em.merge(movie); | ||
|
|
||
| } |
There was a problem hiding this comment.
Potential NoResultException when rating a movie for the first time.
At line 113, getSingleResult() may throw NoResultException if this is the first rating for a movie and the aggregate query returns no rows (depending on JPA provider behavior). Additionally, if avg is null, line 115 could fail.
Apply this diff to handle the edge case safely:
// Update movie ranking
- Double avg = em.createQuery(
+ Double avg = em.createQuery(
"SELECT AVG(ur.rating) FROM UserRating ur WHERE ur.movie = :movie",
Double.class)
.setParameter("movie", movie)
- .getSingleResult();
+ .getResultStream()
+ .findFirst()
+ .orElse(null);
- movie.setRanking(avg);
+ if (avg != null) {
+ movie.setRanking(avg);
+ }
em.merge(movie);📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| @Override | |
| public void rateMovie(User user, Movie movie, float rating) { | |
| if (user == null || movie == null) throw new IllegalArgumentException("User or Movie cannot be null"); | |
| // Check if rating already exists | |
| Optional<UserRating> existing = em.createQuery( | |
| "SELECT ur FROM UserRating ur WHERE ur.user = :user AND ur.movie = :movie", | |
| UserRating.class) | |
| .setParameter("user", user) | |
| .setParameter("movie", movie) | |
| .getResultStream() | |
| .findFirst(); | |
| // If already rated, update rating | |
| UserRating userRating; | |
| if (existing.isPresent()) { | |
| userRating = existing.get(); | |
| userRating.setRating(rating); | |
| em.merge(userRating); | |
| } else { | |
| userRating = new UserRating(user, movie, rating); | |
| em.persist(userRating); | |
| } | |
| // Update movie ranking | |
| Double avg = em.createQuery( | |
| "SELECT AVG(ur.rating) FROM UserRating ur WHERE ur.movie = :movie", | |
| Double.class) | |
| .setParameter("movie", movie) | |
| .getSingleResult(); | |
| movie.setRanking(avg); | |
| em.merge(movie); | |
| } | |
| @Override | |
| public void rateMovie(User user, Movie movie, float rating) { | |
| if (user == null || movie == null) throw new IllegalArgumentException("User or Movie cannot be null"); | |
| // Check if rating already exists | |
| Optional<UserRating> existing = em.createQuery( | |
| "SELECT ur FROM UserRating ur WHERE ur.user = :user AND ur.movie = :movie", | |
| UserRating.class) | |
| .setParameter("user", user) | |
| .setParameter("movie", movie) | |
| .getResultStream() | |
| .findFirst(); | |
| // If already rated, update rating | |
| UserRating userRating; | |
| if (existing.isPresent()) { | |
| userRating = existing.get(); | |
| userRating.setRating(rating); | |
| em.merge(userRating); | |
| } else { | |
| userRating = new UserRating(user, movie, rating); | |
| em.persist(userRating); | |
| } | |
| // Update movie ranking | |
| Double avg = em.createQuery( | |
| "SELECT AVG(ur.rating) FROM UserRating ur WHERE ur.movie = :movie", | |
| Double.class) | |
| .setParameter("movie", movie) | |
| .getResultStream() | |
| .findFirst() | |
| .orElse(null); | |
| if (avg != null) { | |
| movie.setRanking(avg); | |
| } | |
| em.merge(movie); | |
| } |
🤖 Prompt for AI Agents
In src/main/java/org/example/jpaimpl/UserRatingRepoJpa.java around lines 84 to
118, the AVG query uses getSingleResult() which can throw NoResultException or
return null when there are no ratings; update the code to safely obtain the
average by using a non-exception approach (e.g., use getResultList() and extract
the first element or wrap the query in a try/catch for NoResultException), then
treat a null avg as 0.0 (or the desired default) before calling
movie.setRanking(avg) and merging the movie so the method never throws on first
rating and always sets a valid ranking.
| // For user_rating table | ||
| public void addFavoriteMovie(Movie movie) { | ||
| favoriteMovies.add(movie); | ||
| } | ||
| public void removeFavoriteMovie(Movie movie) { | ||
| favoriteMovies.remove(movie); | ||
| } |
There was a problem hiding this comment.
Misleading comment: methods manage favorites, not ratings.
The comment says "For user_rating table" but addFavoriteMovie and removeFavoriteMovie manage the favoriteMovies relationship (which maps to User_favorites table per line 26), not ratings.
- // For user_rating table
+ // For managing favorite movies
public void addFavoriteMovie(Movie movie) {📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // For user_rating table | |
| public void addFavoriteMovie(Movie movie) { | |
| favoriteMovies.add(movie); | |
| } | |
| public void removeFavoriteMovie(Movie movie) { | |
| favoriteMovies.remove(movie); | |
| } | |
| // For managing favorite movies | |
| public void addFavoriteMovie(Movie movie) { | |
| favoriteMovies.add(movie); | |
| } | |
| public void removeFavoriteMovie(Movie movie) { | |
| favoriteMovies.remove(movie); | |
| } |
🤖 Prompt for AI Agents
In src/main/java/org/example/pojo/User.java around lines 66–72, the inline
comment "For user_rating table" is incorrect for the
addFavoriteMovie/removeFavoriteMovie methods which manage the favoriteMovies
relationship (mapped to the User_favorites table per line 26); update or remove
the comment so it accurately describes these methods (e.g., "For User_favorites
relationship" or "Manage favoriteMovies relationship") to avoid confusion.
| )); | ||
|
|
||
| // The Matrix | ||
| movieRepo.setDirector("The Matrix", directors.get("Lana Wachowski")); // lägg till i SeedDirectors |
There was a problem hiding this comment.
Add missing director "Lana Wachowski" to SeedDirectors.
Line 64 references directors.get("Lana Wachowski"), but this director is not present in SeedDirectors.java. This will cause a NullPointerException when movieRepo.setDirector is called with a null director.
Add the missing director to SeedDirectors.java:
directors.put("David Slade", directorRepo.addDirector("David Slade", Country.UK));
+ directors.put("Lana Wachowski", directorRepo.addDirector("Lana Wachowski", Country.USA));
+
// Nya fiktiva placeholdersAlternatively, if this is intentional, remove or update the movie relation setup for "The Matrix" in SeedMovieRelations.java.
Committable suggestion skipped: line range outside the PR's diff.
🤖 Prompt for AI Agents
In src/main/java/org/example/seed/SeedMovieRelations.java around line 64, the
code calls directors.get("Lana Wachowski") but "Lana Wachowski" is not defined
in SeedDirectors.java which will return null; fix by adding a matching director
entry for "Lana Wachowski" in SeedDirectors.java (create the Director object
with the correct data and put it into the directors map with key "Lana
Wachowski"), or if the omission was intentional, remove or change the movie
relation in SeedMovieRelations.java so it uses an existing director key instead.
| for (User user : users.values()) { | ||
| // Assign favorite movies | ||
| List<Movie> movieList = new ArrayList<>(moviesMap.values()); | ||
| Collections.shuffle(movieList); | ||
| int favoritesCount = 2 + random.nextInt(4); | ||
| for (int i = 0; i < favoritesCount; i++){ | ||
| userRepo.addFavoriteMovie(user.getId(), movieList.get(i)); | ||
| } |
There was a problem hiding this comment.
Risk of IndexOutOfBoundsException when assigning favorites.
If moviesMap contains fewer movies than favoritesCount (which can be up to 6 with 2 + random.nextInt(4)), line 30 will throw IndexOutOfBoundsException.
Apply this diff to add bounds checking:
// Assign favorite movies
List<Movie> movieList = new ArrayList<>(moviesMap.values());
+ if (movieList.isEmpty()) continue;
+
Collections.shuffle(movieList);
- int favoritesCount = 2 + random.nextInt(4);
+ int favoritesCount = Math.min(2 + random.nextInt(4), movieList.size());
for (int i = 0; i < favoritesCount; i++){
userRepo.addFavoriteMovie(user.getId(), movieList.get(i));
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| for (User user : users.values()) { | |
| // Assign favorite movies | |
| List<Movie> movieList = new ArrayList<>(moviesMap.values()); | |
| Collections.shuffle(movieList); | |
| int favoritesCount = 2 + random.nextInt(4); | |
| for (int i = 0; i < favoritesCount; i++){ | |
| userRepo.addFavoriteMovie(user.getId(), movieList.get(i)); | |
| } | |
| for (User user : users.values()) { | |
| // Assign favorite movies | |
| List<Movie> movieList = new ArrayList<>(moviesMap.values()); | |
| if (movieList.isEmpty()) continue; | |
| Collections.shuffle(movieList); | |
| int favoritesCount = Math.min(2 + random.nextInt(4), movieList.size()); | |
| for (int i = 0; i < favoritesCount; i++){ | |
| userRepo.addFavoriteMovie(user.getId(), movieList.get(i)); | |
| } |
🤖 Prompt for AI Agents
In src/main/java/org/example/seed/SeedUserRelations.java around lines 24 to 31,
the code can throw IndexOutOfBoundsException when moviesMap has fewer entries
than the randomly chosen favoritesCount; compute the desired favoritesCount as
before, then clamp it to movieList.size() (e.g., int maxFavorites =
Math.min(favoritesCount, movieList.size())), and iterate up to maxFavorites when
calling userRepo.addFavoriteMovie so you never index past the end of movieList;
keep the Collections.shuffle behavior so chosen favorites remain random.
| // Assign ratings on movies | ||
| Collections.shuffle(movieList); | ||
| int ratingsCount = 1 + random.nextInt(5); | ||
| for (int i = 0; i < ratingsCount; i++){ | ||
| float rating = 1.0f + random.nextFloat() * 4.0f; | ||
| ratingRepo.rateMovie(user, movieList.get(i), rating); | ||
| } |
There was a problem hiding this comment.
Risk of IndexOutOfBoundsException when assigning ratings.
Similar to the favorites issue, if ratingsCount (up to 6 with 1 + random.nextInt(5)) exceeds the movieList size, line 38 will throw IndexOutOfBoundsException.
Apply this diff to add bounds checking:
// Assign ratings on movies
Collections.shuffle(movieList);
- int ratingsCount = 1 + random.nextInt(5);
+ int ratingsCount = Math.min(1 + random.nextInt(5), movieList.size());
for (int i = 0; i < ratingsCount; i++){
float rating = 1.0f + random.nextFloat() * 4.0f;
ratingRepo.rateMovie(user, movieList.get(i), rating);
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Assign ratings on movies | |
| Collections.shuffle(movieList); | |
| int ratingsCount = 1 + random.nextInt(5); | |
| for (int i = 0; i < ratingsCount; i++){ | |
| float rating = 1.0f + random.nextFloat() * 4.0f; | |
| ratingRepo.rateMovie(user, movieList.get(i), rating); | |
| } | |
| // Assign ratings on movies | |
| Collections.shuffle(movieList); | |
| int ratingsCount = Math.min(1 + random.nextInt(5), movieList.size()); | |
| for (int i = 0; i < ratingsCount; i++){ | |
| float rating = 1.0f + random.nextFloat() * 4.0f; | |
| ratingRepo.rateMovie(user, movieList.get(i), rating); | |
| } |
🤖 Prompt for AI Agents
In src/main/java/org/example/seed/SeedUserRelations.java around lines 33 to 39,
the loop that assigns random ratings can exceed movieList size and cause
IndexOutOfBoundsException; ensure ratingsCount is bounded by the list size or
guard the loop. Change the code so ratingsCount = Math.min(movieList.size(), 1 +
random.nextInt(5)) or keep ratingsCount but iterate with for (int i = 0; i <
ratingsCount && i < movieList.size(); i++) so you never access movieList beyond
its length.
| users.put("AliceSmith", userRepo.addUser("AliceSmith", "pass123")); | ||
| users.put("BobJones", userRepo.addUser("BobJones", "qwerty")); | ||
| users.put("CharlieBrown", userRepo.addUser("CharlieBrown", "abc123")); | ||
| users.put("DavidMiller", userRepo.addUser("DavidMiller", "password1")); | ||
| users.put("EvaJohnson", userRepo.addUser("EvaJohnson", "123456")); | ||
| users.put("FrankWilson", userRepo.addUser("FrankWilson", "letmein")); | ||
| users.put("GraceLee", userRepo.addUser("GraceLee", "mypassword")); | ||
| users.put("HannahClark", userRepo.addUser("HannahClark", "passw0rd")); | ||
| users.put("IanWalker", userRepo.addUser("IanWalker", "admin123")); | ||
| users.put("JackHall", userRepo.addUser("JackHall", "welcome1")); | ||
|
|
||
| users.put("KarenYoung", userRepo.addUser("KarenYoung", "hello123")); | ||
| users.put("LeoKing", userRepo.addUser("LeoKing", "sunshine")); | ||
| users.put("MiaScott", userRepo.addUser("MiaScott", "flower99")); | ||
| users.put("NathanAdams", userRepo.addUser("NathanAdams", "moonlight")); | ||
| users.put("OliviaBaker", userRepo.addUser("OliviaBaker", "star123")); | ||
| users.put("PeterWright", userRepo.addUser("PeterWright", "dragon1")); | ||
| users.put("QuinnHarris", userRepo.addUser("QuinnHarris", "blueSky")); | ||
| users.put("RachelGreen", userRepo.addUser("RachelGreen", "green123")); | ||
| users.put("SamRoberts", userRepo.addUser("SamRoberts", "robot2025")); | ||
| users.put("TinaEvans", userRepo.addUser("TinaEvans", "tiger12")); | ||
|
|
||
| users.put("UmaCarter", userRepo.addUser("UmaCarter", "queen99")); | ||
| users.put("VictorMitchell", userRepo.addUser("VictorMitchell", "viking1")); | ||
| users.put("WendyPerez", userRepo.addUser("WendyPerez", "wonder12")); | ||
| users.put("XanderCooper", userRepo.addUser("XanderCooper", "xmen123")); | ||
| users.put("YaraReed", userRepo.addUser("YaraReed", "yellow22")); | ||
| users.put("ZacharyBell", userRepo.addUser("ZacharyBell", "zebra99")); | ||
| users.put("AmberRussell", userRepo.addUser("AmberRussell", "apple12")); | ||
| users.put("BrandonWard", userRepo.addUser("BrandonWard", "banana34")); | ||
| users.put("CaitlynBennett", userRepo.addUser("CaitlynBennett", "catDog1")); | ||
| users.put("DerekCook", userRepo.addUser("DerekCook", "delta99")); | ||
|
|
||
| users.put("EllaFoster", userRepo.addUser("EllaFoster", "echo2025")); | ||
| users.put("FelixGray", userRepo.addUser("FelixGray", "falcon1")); | ||
| users.put("GabriellaHunt", userRepo.addUser("GabriellaHunt", "galaxy9")); | ||
| users.put("HenryJames", userRepo.addUser("HenryJames", "harbor12")); | ||
| users.put("IslaKnight", userRepo.addUser("IslaKnight", "icecream")); | ||
| users.put("JasonLong", userRepo.addUser("JasonLong", "joker99")); | ||
| users.put("KylieMorgan", userRepo.addUser("KylieMorgan", "kangaroo")); | ||
| users.put("LiamNelson", userRepo.addUser("LiamNelson", "lion123")); | ||
| users.put("MeganOwens", userRepo.addUser("MeganOwens", "mountain")); | ||
| users.put("NoahPerry", userRepo.addUser("NoahPerry", "nova99")); | ||
|
|
||
| users.put("OlgaQuinn", userRepo.addUser("OlgaQuinn", "olive123")); | ||
| users.put("PaulRoss", userRepo.addUser("PaulRoss", "panda1")); | ||
| users.put("QuincySims", userRepo.addUser("QuincySims", "queenBee")); | ||
| users.put("RileyTurner", userRepo.addUser("RileyTurner", "river12")); | ||
| users.put("SophiaUnderwood", userRepo.addUser("SophiaUnderwood", "sunset")); | ||
| users.put("ThomasVega", userRepo.addUser("ThomasVega", "tornado")); | ||
| users.put("UlyssesWhite", userRepo.addUser("UlyssesWhite", "unicorn")); | ||
| users.put("VanessaXavier", userRepo.addUser("VanessaXavier", "volcano")); | ||
| users.put("WilliamYoung", userRepo.addUser("WilliamYoung", "whale99")); | ||
| users.put("XimenaZimmer", userRepo.addUser("XimenaZimmer", "xylophone")); |
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🏁 Script executed:
#!/bin/bash
# Find and examine UserRepoJpa.addUser implementation
find . -type f -name "UserRepoJpa.java" | head -5Repository: ithsjava25/project-jpa-grupp-5-d
Length of output: 128
🏁 Script executed:
#!/bin/bash
# Search for addUser method implementation with context
rg -n -A 15 "public User addUser\(" --type javaRepository: ithsjava25/project-jpa-grupp-5-d
Length of output: 1478
🏁 Script executed:
#!/bin/bash
# Look for password hashing imports and methods
rg -n "encrypt|hash|bcrypt|argon|password.*encode" --type java | head -20Repository: ithsjava25/project-jpa-grupp-5-d
Length of output: 1316
Implement password hashing before persistence.
Passwords are stored in plain text in the database. The UserRepoJpa.addUser() method at line 35 directly persists the password without encryption: user.setPassword(password). This is a critical security vulnerability.
Implement password hashing using bcrypt, Argon2, or PBKDF2 in the User entity or repository layer before persistence. Update both SeedUsers.java and UserRepoJpa.addUser() to use hashed passwords.
1 participant
Summary by CodeRabbit
Release Notes
New Features
Refactor
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