Hibernate Spring JPA删除@OneTONE关系

我有一个SpringBoot 2.1.3.RELEASE RESTful Web服务应用程序，使用Spring初始值设定项、嵌入式Tomcat、Thymeleaf模板引擎和作为可执行JAR文件的包，我有以下对象：

public class ImpactHint implements Serializable {



    @OneToOne(mappedBy = "impactHint", fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
    @JoinColumn(name = "IA_ID")
    private ImpactHintAmendment amendment ;


...

}

而且

public class ImpactHintAmendment implements Serializable, IEntity<String> {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    @Id
    @Column(name = "ID")
    private String id;

    @OneToOne(cascade = {CascadeType.ALL})
    @JoinColumn(name = "IA_ID")
    private ImpactHint impactHint;  
..
}

impactHint.setAmendment(null);
em.persist(impactHint);

impactHint.setAmendment(null);
em.persist(impactHint);

而且

public class ImpactHintAmendment implements Serializable, IEntity<String> {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    @Id
    @Column(name = "ID")
    private String id;

    @OneToOne(cascade = {CascadeType.ALL})
    @JoinColumn(name = "IA_ID")
    private ImpactHint impactHint;  
..
}

impactHint.setAmendment(null);
em.persist(impactHint);

impactHint.setAmendment(null);
em.persist(impactHint);

在我的repository类中，但什么都不起作用

@Repository
public class ImpactHintDao extends AbstractDao<ImpactHint, String> implements IImpactHintDao {


    @PersistenceContext
    private EntityManager em;

   ..
}

@存储库
公共类ImpactHintDao扩展了AbstractDao，实现了IImpactHintDao{
@持久上下文
私人实体管理者；
..
}

对于OneTONE双向，使用

mappedBy

属性定义反向映射。拥有实体ImpactHint使用

@JoinColumn

并具有FK列。第二实体：

public class ImpactHintAmendment {
    @OneToOne(mappedBy = "amendment")
    private ImpactHint impactHint; 

如果更正映射，则孤立删除属性。应该删除

修改

而不调用remove