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[英]Not able to use JPA annotation @OneToOne(cascade=CascadeType.ALL)
[英]@OneToOne with CascadeType.ALL not getting deleted?
从数据库删除父对象时,我想删除所有附加的子对象。 但这不起作用:
@Entity
public class ParentEntity {
@Id
private Long id;
//must remain unidirectional
@OneToOne(cascade = CascadeType.ALL, orphanRemoval = true)
private MyEntity my;
}
@Entity
public class MyEntity {
private String text;
}
public interface ParentEntityRepository extends CrudRepository<ParentEntity, Long> {}
当我执行时:
@Autowired
private ParentEntityRepository dao;
@Transactional
public void removeId(long id) {
dao.delete(id);
}
结果: MyEntity
行仍存在于数据库中! 为什么?
你可以试试这个
@OneToOne(cascade = CascadeType.DELETE_ORPHAN)
private MyEntity my;
如果它不起作用,则可以尝试以下操作:
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