Assignment

movierental.jpa/.project

@@ -15,6 +15,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.springframework.ide.eclipse.boot.validation.springbootbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.jdt.core.javanature</nature>

movierental.jpa/.settings/org.springframework.ide.eclipse.prefs

@@ -0,0 +1,2 @@
+boot.validation.initialized=true
+eclipse.preferences.version=1

movierental.jpa/bin/main/application.properties

@@ -5,11 +5,12 @@ spring.h2.console.path=/h2
 
 spring.datasource.url=jdbc:h2:mem:testdb
 
+spring.jpa.show-sql=true
+
 # spring.datasource.url=
 # spring.datasource.driver-class-name=
 # spring.datasource.username=sa
 # spring.datasource.password=
 
 # logging.level.org.hibernate.SQL: DEBUG
 # spring.jpa.hibernate.ddl-auto=create
-# spring.jpa.show-sql=true

movierental.jpa/bin/main/data.sql

@@ -29,6 +29,7 @@ INSERT INTO USERS (USER_ID, USER_NAME, USER_FIRSTNAME, USER_EMAIL) VALUES (1, 'K
 INSERT INTO USERS (USER_ID, USER_NAME, USER_FIRSTNAME, USER_EMAIL) VALUES (2, 'Knecht', 'Werner', 'werner.knecht@gmail.com');
 INSERT INTO USERS (USER_ID, USER_NAME, USER_FIRSTNAME, USER_EMAIL) VALUES (3, 'Meyer', 'Barbara', 'barbara.meyer@gmail.com');
 INSERT INTO USERS (USER_ID, USER_NAME, USER_FIRSTNAME, USER_EMAIL) VALUES (4, 'Kummer', 'Adolf', 'adolf.kummer@gmail.com');
+INSERT INTO USERS (USER_ID, USER_NAME, USER_FIRSTNAME, USER_EMAIL) VALUES (5, 'Naef', 'Livio', 'livio.naef@students.fhnw.ch');
 
 INSERT INTO RENTALS (RENTAL_ID, MOVIE_ID, USER_ID, RENTAL_RENTALDATE, RENTAL_RENTALDAYS) VALUES (1, 1, 1, '2019-09-28', 14);
 INSERT INTO RENTALS (RENTAL_ID, MOVIE_ID, USER_ID, RENTAL_RENTALDATE, RENTAL_RENTALDAYS) VALUES (2, 2, 1, '2019-09-30', 14);

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/model/Movie.java

@@ -2,14 +2,40 @@
 
 import java.time.LocalDate;
 
+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 = "MOVIES")
 public class Movie {
+
+	@Id
+	@GeneratedValue(strategy=GenerationType.IDENTITY)
+	@Column(name="MOVIE_ID")
 	private Long id;
 
+	@Column(name="MOVIE_TITLE")
 	private String title;
+
+	@Column(name="MOVIE_RELEASEDATE")
 	private LocalDate releaseDate;
+
+	@Column(name="MOVIE_RENTED")
 	private boolean rented;
+
+	@ManyToOne // Movie is the owner of the relationship
+	@JoinColumn(name="PRICECATEGORY_FK")
 	private PriceCategory priceCategory;
 
+	// nicht-privater no-arg Konstruktor (jede @Entity Klasse braucht diesen)
+	protected Movie() {	}
+
 	public Movie(Long id, String title, LocalDate releaseDate, boolean rented, PriceCategory priceCategory) {
 		this(title, releaseDate, priceCategory);
 		setId(id);

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/model/PriceCategory.java

@@ -1,5 +1,13 @@
 package ch.fhnw.eaf.rental.model;
 
+import javax.persistence.Column;
+import javax.persistence.DiscriminatorColumn;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 
@@ -8,8 +16,18 @@
 
 @JsonDeserialize(using = PriceCategoryDeserializer.class)
 @JsonSerialize(using = PriceCategorySerializer.class)
+@Entity
+@Table(name = "PRICECATEGORIES")
+@DiscriminatorColumn(name="PRICECATEGORY_TYPE") // default DTYPE
 public abstract class PriceCategory {
+
+	@Id
+	@GeneratedValue(strategy=GenerationType.IDENTITY)
+	@Column(name="PRICECATEGORY_ID")
 	private Long id;
+
+	// nicht-privater no-arg Konstruktor
+	protected PriceCategory() { }
 
 	public Long getId() {
 		return id;

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/model/PriceCategoryChildren.java

@@ -1,5 +1,10 @@
 package ch.fhnw.eaf.rental.model;
 
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+
+@Entity
+@DiscriminatorValue(value="Children")
 public class PriceCategoryChildren extends PriceCategory {
 
 	@Override

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/model/PriceCategoryNewRelease.java

@@ -1,5 +1,10 @@
 package ch.fhnw.eaf.rental.model;
 
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+
+@Entity
+@DiscriminatorValue(value="NewRelease")
 public class PriceCategoryNewRelease extends PriceCategory {
 
 	@Override

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/model/PriceCategoryRegular.java

@@ -1,5 +1,10 @@
 package ch.fhnw.eaf.rental.model;
 
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+
+@Entity
+@DiscriminatorValue(value="Regular")
 public class PriceCategoryRegular extends PriceCategory {
 
 	@Override

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/model/Rental.java

@@ -2,18 +2,44 @@
 
 import java.time.LocalDate;
 
+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.OneToOne;
+import javax.persistence.Table;
+
 import com.fasterxml.jackson.annotation.JsonIdentityInfo;
 import com.fasterxml.jackson.annotation.ObjectIdGenerators;
 
 @JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class, property = "id", scope = Rental.class)
+@Entity
+@Table(name = "RENTALS")
 public class Rental {
+
+	@Id
+	@GeneratedValue(strategy=GenerationType.IDENTITY)
+	@Column(name="RENTAL_ID")
 	private Long id;
 
+	@OneToOne
+	@JoinColumn(name="MOVIE_ID")
 	private Movie movie;
+
+	@ManyToOne // Rental is the owner of the relationship
+	@JoinColumn(name="USER_ID")
 	private User user;
+
+	@Column(name="RENTAL_RENTALDATE")
 	private LocalDate rentalDate;
+
+	@Column(name="RENTAL_RENTALDAYS")
 	private int rentalDays;
 
+	// nicht-privater no-arg Konstruktor
 	public Rental() {
 		this.rentalDate = LocalDate.now();
 	}

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/model/User.java

@@ -3,17 +3,41 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
 import com.fasterxml.jackson.annotation.JsonIdentityInfo;
 import com.fasterxml.jackson.annotation.ObjectIdGenerators;
 
 @JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class, property = "id", scope = Rental.class)
+@Entity
+@Table(name = "USERS")
 public class User {
+
+	@Id
+	@GeneratedValue(strategy=GenerationType.IDENTITY)
+	@Column(name="USER_ID")
 	private Long id;
 
+	@Column(name="USER_NAME")
 	private String lastName;
+
+	@Column(name="USER_FIRSTNAME")
 	private String firstName;
+
+	@Column(name="USER_EMAIL")
 	private String email;
+
+	@OneToMany(mappedBy="user", cascade = CascadeType.REMOVE)
 	private List<Rental> rentals;
+
+	// nicht-privater no-arg Konstruktor
+	protected User() { }
 
 	public User(String lastName, String firstName) {
 		this.lastName = lastName;

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/persistence/impl/JpaMovieRepository.java

@@ -3,60 +3,69 @@
 import java.util.List;
 import java.util.Optional;
 
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+import javax.persistence.TypedQuery;
+
 import org.springframework.stereotype.Repository;
 
 import ch.fhnw.eaf.rental.model.Movie;
 import ch.fhnw.eaf.rental.persistence.MovieRepository;
 
 @Repository
 public class JpaMovieRepository implements MovieRepository {
+
+	@PersistenceContext
+	private EntityManager em;
 
 	@Override
 	public Optional<Movie> findById(Long id) {
-		// TODO Auto-generated method stub
-		return null;
+		return Optional.ofNullable(em.find(Movie.class, id));
 	}
 
 	@Override
 	public List<Movie> findAll() {
-		// TODO Auto-generated method stub
-		return null;
+		TypedQuery<Movie> query = em.createQuery("SELECT m FROM Movie m", Movie.class);
+		return query.getResultList();
 	}
 
 	@Override
-	public Movie save(Movie t) {
-		// TODO Auto-generated method stub
-		return null;
+	public Movie save(Movie movie) {
+		return em.merge(movie);
 	}
 
 	@Override
 	public void deleteById(Long id) {
-		// TODO Auto-generated method stub
-
+		em.remove(em.getReference(Movie.class, id));
 	}
 
 	@Override
-	public void delete(Movie entity) {
-		// TODO Auto-generated method stub
-
+	public void delete(Movie movie) {
+		em.remove(em.merge(movie));		
 	}
 
 	@Override
 	public boolean existsById(Long id) {
-		// TODO Auto-generated method stub
-		return false;
+//		return findById(id).isPresent(); -> Entität wird in Persistenzkontext geladen!
+		TypedQuery<Long> query = em.createQuery(
+				"SELECT COUNT(m) FROM Movie m WHERE m.id = :id",
+				Long.class);
+		query.setParameter("id", id);
+		return query.getSingleResult() > 0; // -> Entität wird nicht in Persistenzkontext geladen!
 	}
 
 	@Override
 	public long count() {
-		// TODO Auto-generated method stub
-		return 0;
+		return em.createQuery("SELECT COUNT(m) FROM Movie m", Long.class).getSingleResult();
 	}
 
 	@Override
 	public List<Movie> findByTitle(String title) {
-		// TODO Auto-generated method stub
-		return null;
+		TypedQuery<Movie> query = em.createQuery(
+				"SELECT m FROM Movie m WHERE m.title = :title",
+				Movie.class);
+		query.setParameter("title", title);
+		return query.getResultList();
 	}
 
 }

movierental.jpa/src/main/java/ch/fhnw/eaf/rental/persistence/impl/JpaPriceCategoryRepository.java

@@ -3,54 +3,60 @@
 import java.util.List;
 import java.util.Optional;
 
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+import javax.persistence.TypedQuery;
+
 import org.springframework.stereotype.Repository;
 
 import ch.fhnw.eaf.rental.model.PriceCategory;
 import ch.fhnw.eaf.rental.persistence.PriceCategoryRepository;
 
 @Repository
 public class JpaPriceCategoryRepository implements PriceCategoryRepository {
+
+	@PersistenceContext
+	private EntityManager em;
 
 	@Override
 	public Optional<PriceCategory> findById(Long id) {
-		// TODO Auto-generated method stub
-		return null;
+		return Optional.ofNullable(em.find(PriceCategory.class, id));
 	}
 
 	@Override
 	public List<PriceCategory> findAll() {
-		// TODO Auto-generated method stub
-		return null;
+		TypedQuery<PriceCategory> query = em.createQuery("SELECT pc FROM PriceCategory pc", PriceCategory.class);
+		return query.getResultList();
 	}
 
 	@Override
-	public PriceCategory save(PriceCategory t) {
-		// TODO Auto-generated method stub
-		return null;
+	public PriceCategory save(PriceCategory priceCategory) {
+		return em.merge(priceCategory);
 	}
 
 	@Override
 	public void deleteById(Long id) {
-		// TODO Auto-generated method stub
-
+		em.remove(em.getReference(PriceCategory.class, id));
 	}
 
 	@Override
-	public void delete(PriceCategory entity) {
-		// TODO Auto-generated method stub
-
+	public void delete(PriceCategory priceCategory) {
+		em.remove(em.merge(priceCategory));
 	}
 
 	@Override
 	public boolean existsById(Long id) {
-		// TODO Auto-generated method stub
-		return false;
+//		return findById(id).isPresent();
+		TypedQuery<Long> query = em.createQuery(
+				"SELECT COUNT(pc) FROM PriceCategory pc WHERE pc.id = :id",
+				Long.class);
+		query.setParameter("id", id);
+		return query.getSingleResult() > 0;
 	}
 
 	@Override
 	public long count() {
-		// TODO Auto-generated method stub
-		return 0;
+		return em.createQuery("SELECT COUNT(pc) FROM PriceCategory pc", Long.class).getSingleResult();
 	}
 
 }