Hibernate Envers：@Audited在子类上

我对实体Parent和Child具有经典的继承持久性，其中Child扩展Parent。类Parent是抽象的，而Child不是。

我要审核孩子。该实体由我控制，而父实体则不在我的控制之下。此外，它还有许多其他子类，无需审核。整个层次结构的继承策略为JOINED。

所以我用@Audited注释了Child，另外还用@AuditOverride（forClass = Parent.class）注释了Child。

我得到的是这个错误：

“ org.hibernate.MappingException：实体'Child'已审计，但其超类：'Parent'未审计。”

顺便说一句，我正在使用envers 4.0.1.Final版本。

有人知道我该怎么做到吗？我试图消除@Audited在儿童类，除去@AuditOverride，使用过时auditParents在@Audited注释，但似乎没有任何工作。

这是父实体：

@Entity
@Table(name = "parent")
@Inheritance(strategy = InheritanceType.JOINED)
@DiscriminatorColumn(name = "type")
public class Parent {
    public Parent() {
        super();
    }

    @Id
    @GeneratedValue(strategy = IDENTITY)
    @Column(name = "base_id", unique = true, nullable = false)
    private Integer baseId;

    @Column(name = "base_field")
    private String baseField;

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

    // getters and setters
}

这是我的孩子实体：

@Entity
@Table(name = "child")
@DiscriminatorValue("CHILD")
@Audited
@AuditOverride(forClass = Parent.class)
public class Child extends Parent {
    public Child() {
        super();
    }

    @Column(name = "child_field")
    private String childField;

    // getters and setters
}

这是实体：

CREATE  TABLE `REVINFO` (
  `REV` BIGINT NOT NULL AUTO_INCREMENT,
  `REVTSTMP` BIGINT NULL ,
  PRIMARY KEY (`REV`)
);

CREATE TABLE `parent` (
  `base_id` int(11) NOT NULL AUTO_INCREMENT,
  `base_field` varchar(45) DEFAULT NULL,
  `type` varchar(45) NOT NULL,
  PRIMARY KEY (`base_id`)
);

CREATE TABLE `child` (
  `base_id` int(11) NOT NULL AUTO_INCREMENT,
  `child_field` varchar(45) DEFAULT NULL,
  PRIMARY KEY (`base_id`)
);

CREATE TABLE `child_AUD` (
  `base_id` int(11) NOT NULL,
  `REV` BIGINT NOT NULL,
  `REVTYPE` tinyint(2) DEFAULT NULL,
  `child_field` varchar(45) DEFAULT NULL,
  PRIMARY KEY (`base_id`,`REV`)
);

这是一个测试案例：

public class EnversInheritanceTest extends AbstractJUnit4SpringContextTests {

    @Inject
    private EntityManagerFactory entityManagerFactory;

    private EntityManager entityManager;

    @Test
    public void inheritanceTest() {

        this.entityManager = this.entityManagerFactory.createEntityManager();

        Child child = this.createChild();
        this.saveChild(child);

        this.modifyChild(child);
        this.saveChild(child);

        Assert.assertNotNull(child.getBaseId());
        Assert.assertNotNull(this.getOriginalRevision(child.getBaseId()));

        Child original = this.getOriginalChild(child.getBaseId());

        Assert.assertNotNull(original);
        Assert.assertEquals("child", original.getChildField());

    }

    private Child createChild() {
        Child child = new Child();
        child.setBaseField("base");
        child.setChildField("child");
        child.setType("CHILD");
        return child;
    }

    private void saveChild(Child child) {
        this.entityManager.getTransaction().begin();
        this.entityManager.persist(child);
        // We need to commit in order to trigger Envers magic
        this.entityManager.getTransaction().commit();
    }

    private void modifyChild(Child child) {
        child.setBaseField("foo");
        child.setChildField("bar");
    }

    public Child getOriginalChild(Serializable id) {
        Object queryResult = this.getAuditReader().createQuery()
                .forEntitiesAtRevision(Child.class, this.getOriginalRevision(id))
                .add(AuditEntity.id().eq(id))
                .getSingleResult();
        return (Child) queryResult;
    }

    private Number getOriginalRevision(Serializable id) {
        AuditProjection minRevNumberAuditProjection = AuditEntity.revisionNumber().min();
        Number revision = (Number) this.getAuditReader().createQuery()
                .forRevisionsOfEntity(Child.class, false, false)
                .add(AuditEntity.id().eq(id))
                .addProjection(minRevNumberAuditProjection)
                .getSingleResult();

        return revision;
    }

    private AuditReader getAuditReader() {
        return AuditReaderFactory.get(this.entityManager);
    }

}

先感谢您！