仍然存在下列实体:Persistense @OneToMany - @ManyToOne
@Entity
@Table(name="entityOne")
public class EntityOne implements Serializable {
@Id
@Column(name = "id", nullable = false)
private Integer id;
@OneToMany(fetch = FetchType.LAZY, mappedBy="entityOne")
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;
}
在EntityOneDAO:
em.merge(entityOne);
而且只有坚持以EntityOne而不是EntityTwo名单。 ..我如何坚持清单?
感谢所有