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Persistense @OneToMany - @ManyToOne


Try this:

public class EntityOne implements
Serializable  {

   @Id
   @Column(name = "id", nullable = false)
   private Integer id;

   @OneToMany(fetch = FetchType.LAZY,
mappedBy="entityOne", 
              cascade = { CascadeType.ALL})
   private List<EntityTwo> entities;

}

@Entity
@Table(name="entityTwo")
public class EntityTwo implements Serializable  {

   @Id
   @Column(name = "id", nullable = false)
   private Integer id;

   @Inject
   @ManyToOne(fetch=FetchType.LAZY)
   @JoinColumn(name="entityOne",
referencedColumnName="id")
   private EntityOne entityOne;

}

You can read here, about the CascadeType.

edited.


Categories : Java

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