Reference « Entity « JPA Q&A

1. The best way to update reference to an entity in hibernate stackoverflow.com

Imagine I have an hibernate entity that is referenced by many other entities. Now I create new entity and I want new entity to toake place of old one so it ...

2. Hibernate entity referencing itself by foreign key coderanch.com

Hi, Let's say I have a table called Entity having a database managed identity column 'id'. It also has another column called 'parentId' having a foreign key constraint to 'its own' Entity.id. This way I'd like to create a parent/child relationship between Entity rows. I have generated a class Entity that represents the Entity table. The FK reference is represented by ...

3. Error mappedBy reference an unknown target entity forum.hibernate.org

... private Person person; ... private Set vehicules = new HashSet(0); ... @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "PERS_ID", nullable = false) public Person getPerson() { return this.Person; } public void setPerson(Person person) { this.person = person; } @OneToMany(fetch = FetchType.LAZY, mappedBy = "Vehicules") public Set getVehicules() { return this.Vehicules; } public void setVehicules(Set vehicules) { this.vehicules = vehicules; }

4. Envers & Self-Referencing Entities forum.hibernate.org

Hello, does anyone know how to create a self-referencing entity with Hibernate Envers support? My Entity would be: Code: @Entity @Audited @Table(name = "XMODEL") @Inheritance(strategy = InheritanceType.SINGLE_TABLE) @DiscriminatorColumn(name="type", discriminatorType=DiscriminatorType.STRING) @DiscriminatorValue("XMODELOBJECT") public class XModelObject { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @Column(nullable = false, unique ...

5. Entity reference encoding forum.hibernate.org

Books book = new Books(); book.setIsbn(request.getParameter("gwAddIsbn")); book.setAuthorId(Integer.decode(request.getParameter("authorId"))); book.setTitle(rs.getString("TITLE")); book.setDescription(" "); book.setDisplayLabel(" "); book.setExtract(" "); bookService.addBook(book);

6. why an entity cannot have 2 references of another entity? forum.hibernate.org

thank you for your reply. Unfortunately, 2 entities (TestBranch & TestBranch2) do map to the same table. I created 2 entities only to comply with JavaBean's naming scheme. They are precisely identical except for the class name. Or Hibernate would complain that it can't find the getter of the property that is not named as its class name with the first ...