Java 按id加载实体时,Hibernate enableFilter不工作
我有三门课:Java 按id加载实体时,Hibernate enableFilter不工作,java,hibernate,orm,nhibernate-mapping,hibernate-filters,Java,Hibernate,Orm,Nhibernate Mapping,Hibernate Filters,我有三门课: 事件 PublicEvent扩展事件 PersonalEvent扩展事件 我的hibernate映射文件类似于bellow。我想为PersonalEvent添加一个过滤器,在加载此对象之前,我启用了该过滤器。但这是行不通的。我的hibernate版本是4.3.11.Final Event.hbm.xml <hibernate-mapping> <class name="org.calendar.Event"> ...
事件
PublicEvent扩展事件
PersonalEvent扩展事件
PersonalEvent
添加一个过滤器,在加载此对象之前,我启用了该过滤器。但这是行不通的。我的hibernate版本是4.3.11.Final
Event.hbm.xml
<hibernate-mapping>
<class name="org.calendar.Event">
...
<filter name="personalEventAuthorize" condition="person_ID = :personId" />
</class>
<joined-subclass name="org.calendar.PersonalEvent" extends="org.calendar.Event">
<key column="id" property-ref="id" />
...
<many-to-one name="person" column="person_ID" entity-name="org.person.Person" />
</joined-subclass>
<joined-subclass name="org.calendar.PublicEvent" extends="org.calendar.Event">
<key column="id" property-ref="id" />
...
</joined-subclass>
<filter-def name="personEventAuthorize">
<filter-param name="personId" type="integer" />
</filter-def>
</hibernate-mapping>
hibernate生成的SQL查询没有我的筛选器。我有什么问题?为什么hibernate不能为加入的子类启用筛选器?
谢谢大家……。我更新了Hibernate用户指南,使其更加明显
直接加载实体时,@过滤器
不适用:
Account account1 = entityManager.find( Account.class, 1L );
Account account2 = entityManager.find( Account.class, 2L );
assertNotNull( account1 );
assertNotNull( account2 );
当您使用实体查询(JPQL、HQL、Criteria API)时,它适用:
因此,作为一种解决方法,使用实体查询(JPQL、HQL、Criteria API)加载实体。这个问题似乎只存在于
连接的子类中。
。。!
Account account1 = entityManager.find( Account.class, 1L );
Account account2 = entityManager.find( Account.class, 2L );
assertNotNull( account1 );
assertNotNull( account2 );
Account account1 = entityManager.createQuery(
"select a from Account a where a.id = :id",
Account.class)
.setParameter( "id", 1L )
.getSingleResult();
assertNotNull( account1 );
try {
Account account2 = entityManager.createQuery(
"select a from Account a where a.id = :id",
Account.class)
.setParameter( "id", 2L )
.getSingleResult();
}
catch (NoResultException expected) {
expected.fillInStackTrace();
}