Hibernate envers，删除后事件抛出约束违反异常

Question

项目使用 Hibernate 3.5、Spring Webflow 2 和 Hibernate Envers 进行审计。 Envers 在 hibernate.cfg.xml 中配置。我在实体“ArticleGroup”和“Article”之间有一对多关系映射。表“articles”有一个外键“article_group_id”引用表“article_groups”中的id。在前端，当我删除一篇文章时，Hibernate Envers 会针对删除后事件抛出约束冲突异常。如果我不使用 Envers，删除操作可以正常工作。两个实体定义如下

    @Entity
    @Table(name="article_groups")
    @Audited
    public class ArticleGroup implements Serializable {

        @OneToMany(mappedBy="articleGroup", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
        @OrderBy("id")
        private List<Article> articles;

        // other fields, getters and setters
    }

    @Entity 
    @Table(name="articles")
    @Audited
    public class Article implements Serializable {

        @ManyToOne
        @JoinColumn(name = "article_group_id")
        private ArticleGroup articleGroup;

        // other fields, getters, setters
    }

文章删除代码如下:

    @Service("articleManager")
    public class ArticleManagerImpl implements ArticleManager {
            // inject dao
            @SuppressWarnings("unchecked")
            @Transactional(readOnly = false, propagation = Propagation.REQUIRES_NEW)
            public void deleteArticle(Article article, Object articles) {
            articleDao.delete(article);
            ((List<Article>)  ((OneSelectionTrackingListDataModel)articles).getWrappedData()).remove(article);
        }
    }

违反约束异常:

Hibernate: delete from live.articles where id=?
Hibernate: select nextval ('hibernate_sequence')
Hibernate: insert into audit.REVINFO (REVTSTMP, REV) values (?, ?)
Hibernate: insert into audit.articles_AUD (REVTYPE, content, language, name, order_number, title, article_group_id, id, REV) values (?, ?, ?, ?, ?, ?, ?, ?, ?)
82828 [http-bio-8080-exec-2] DEBUG   org.springframework.orm.hibernate3.HibernateTransactionManager  - Initiating transaction rollback after commit exception
org.springframework.dao.DataIntegrityViolationException: Could not execute JDBC batch update; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
...
Caused by: java.sql.BatchUpdateException: Batch entry 0 insert into audit.articles_AUD (REVTYPE, content, language, name, order_number, title, article_group_id, id, REV) values ('2', NULL, NULL, NULL, NULL, NULL, NULL, '14', '17') was aborted.  Call getNextException to see the cause.
at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2619)

正如您所看到的，当 Envers 插入表“audit.articles_AUD”时，article_group_id 为 null，这导致了约束违规。有人知道如何修复它吗？非常感谢。

Answer 1

明白了。在配置文件中设置此属性:

<prop key="org.hibernate.envers.store_data_at_delete">true</prop>

引用: http://docs.jboss.org/hibernate/envers/3.6/reference/en-US/html/configuration.html 表 3.1。恩弗斯配置属性 org.hibernate.envers.store_data_at_delete