thjanssen

StoredProcedureQuery query = this.em.createStoredProcedureQuery("get_reviews", Review.class);
query.registerStoredProcedureParameter(1, void.class, ParameterMode.REF_CURSOR);
query.registerStoredProcedureParameter(2, Long.class, ParameterMode.IN);

query.setParameter(2, b.getId());
List<Review> reviews = query.getResultList();

thjanssen

<persistence>
	<persistence-unit name="my-persistence-unit">
		...

		<properties>
			<property name="hibernate.generate_statistics" value="true" />

			...
		</properties>
	</persistence-unit>

thjanssen

@Entity
public class Author implements Comparable<Author> {

	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	@Column(name = "id", updatable = false, nullable = false)
	private Long id;

	@Version
	private int version;

thjanssen

@Entity
@DynamicUpdate
public class Book {
	
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	@Column(name = "id", updatable = false, nullable = false)
	private Long id;

	@Version

thjanssen

@Entity
public class Author {

	@ElementCollection
	@MapKeyColumn(name = "address_type")
	@MapKeyEnumerated(EnumType.STRING)
	private Map<AddressType, Address>address = new HashMap<AddressType, Address>();

	...
}

thjanssen

Order o = em.find(Order.class, 1L);

OrderItem i = new OrderItem();
i.setOrder(o);

o.getItems().add(i);

em.persist(i);

thjanssen

@Entity
public class Author {

	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	@Column(name = "id", updatable = false, nullable = false)
	private Long id;

	@ManyToMany(mappedBy = "authors")
	@Where(clause = "format = 'EBOOK'")

thjanssen

@Entity
public class Author {

	@Id
	private Long id;

	…
}

thjanssen

@Entity
public class Book {

	@Min(100)
	@Max(1000)
	private int numPages;

	…
}

thjanssen

TypedQuery<Book> q = em.createQuery("SELECT b FROM Book b "
			    + "WHERE :double2 > function('calculate', b.price, :double1)"
			    , Book.class);