Question

删除父级时，Hibernate级联删除不会删除子级。导致此错误：

ORA-02292: violated integrity constraint (owner.constraintname)- child record found.

以下是我的实体：

@Entity
@Table(name = "FLIGHT_MAP_REGION")
@Audited
public class FlightMapRegion extends AbstractBWSModel {
    private static final long serialVersionUID = 1L;

    @Id
    @SequenceGenerator(name = "FLIGHT_MAP_REGION_ID_GENERATOR", sequenceName = "SEQ_FLIGHT_MAP_REGION", allocationSize=1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "FLIGHT_MAP_REGION_ID_GENERATOR")
    private Long ID;

    @Column(name = "CODE")
    private String code;

    // bi-directional one-to-many association to FlightMapRegionI18n
    @OneToMany (mappedBy = "flightMapRegion", fetch = FetchType.EAGER, cascade=CascadeType.REMOVE, orphanRemoval=true)
    @Fetch(value = FetchMode.SUBSELECT)
    @NotAudited
    private List<FlightMapRegionI18n> flightMapRegionI18ns;

//getters&setters

和

@Entity
@Table(name = "FLIGHT_MAP_REGION_I18N")
@Audited
public class FlightMapRegionI18n extends AbstractBWSModel implements Serializable {
    private static final long serialVersionUID = 1L;

    @Id
    @SequenceGenerator(name = "FLIGHT_MAP_REGION_I18N_ID_GENERATOR", sequenceName = "SEQ_FLIGHT_MAP_REGION_I18N", allocationSize=1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "FLIGHT_MAP_REGION_I18N_ID_GENERATOR")
    private Long ID;

    @Column(name = "NAME")
    private String name;

    // bi-directional many-to-one association to flightMapRegion
    @ManyToOne(fetch = FetchType.EAGER)
    @JoinColumn(name = "FLIGHT_MAP_REGION_CODE", referencedColumnName="CODE")
    @AuditJoinTable
    private FlightMapRegion flightMapRegion;


//getters & setters

我想在删除父FlightMapRegion记录时删除任何子FlightMapRegionI18n记录。

请注意，这些表未通过ID连接，它们的连接方式如下：

FOREIGN KEY (FLIGHT_MAP_REGION_CODE) 
REFERENCES FLIGHT_MAP_REGION (CODE)

我不想在数据库级别添加ON DELETE CASCADE。我想在java中以编程方式实现此目的。

删除父级时，Hibernate级联不会删除子级

0 个答案: