问题描述
我有一个简单的HibernateInterceptor，其中基本上我想自动设置几个字段。这个拦截器（如下所示）扩展了EmptyInterceptor：
public class EntityAuditInterceptor extends EmptyInterceptor {
/ **
*串行版本UUID。
* /
private static final long serialVersionUID = 4636626262147801287L;
$ b $ *（非Javadoc）
* @see org.hibernate.EmptyInterceptor＃onFlushDirty（java.lang.Object，java.io.Serializable，java.lang.Object []， java.lang.Object []，java.lang.String []，org.hibernate.type.Type []）
* /
public boolean onFlushDirty（Object entity，Serializable id，Object [] currentState ，Object [] previousState，String [] propertyNames，Type [] types）{
//在这里做东西
return false;
$ b $ *（非Javadoc）
* @see org.hibernate.EmptyInterceptor＃onSave（java.lang.Object，java.io.Serializable，java.lang .Object []，java.lang.String []，org.hibernate.type.Type []）
* /
public boolean onSave（Object entity，Serializable id，Object [] state，String [ ] propertyNames，Type []类型）{
//在这里做的事
return false;
$ b我使用弹簧配置文件进行接线，如下所示：
<！ - Hibernate SessionFactory - >
< bean id =sessionFactoryclass =org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean>
< property name =dataSourceref =hsqlDbDataSource/>
< property name =packagesToScan>
< list>
< value> com.dreamteam.lms。**。*< / value>
< / list>
< / property>
< property name =entityInterceptor>
< bean class =com.dreamteam.lms.interceptors.EntityAuditInterceptor>< / bean>
< / property>
< property name =hibernateProperties>
<道具>
<！ - < prop key =hibernate.dialect> org.hibernate.dialect.MySQLDialect< / prop> - >
< prop key =hibernate.dialect> org.hibernate.dialect.HSQLDialect< / prop>
< prop key =hibernate.generate_statistics> true< / prop>
< prop key =hibernate.show_sql> true< / prop>
< prop key =hibernate.cache.use_second_level_cache> true< / prop>
< prop key =hibernate.hbm2ddl.auto>建立< / prop>
< prop key =hibernate.cache.use_query_cache> true< / prop>
< prop key =hibernate.cache.provider_class> net.sf.ehcache.hibernate.SingletonEhCacheProvider< / prop>
< /道具>
< / property>
< / bean>
但是，拦截器永远不会到达。有没有人有任何线索？我也尝试在事务管理器bean定义中添加以下内容：
< property name =entityInterceptor>
< ref local =entityAuditInterceptor/>
< / property>
解决方案好的，只是为了记录，我解决了这个问题结果这是我的一个愚蠢的错误。
当我实现了扩展EmptyInterceptor的拦截器时，我添加了方法'onFlushDirty'等等。到现在为止还挺好。问题在于，在使用我的IDE自动导入使用的类时，我最终导致错误地导入了java.reflect.Type而不是org.hibernate.type.Type。因此，我并不是真正覆盖拦截器方法！
我注意到当我将@Override拦截器添加到我的方法中时。
另一个谜题解决了......）
I have a simple HibernateInterceptor in which basically I want to set a few fields automatically. This interceptor (shown below) extends EmptyInterceptor:
public class EntityAuditInterceptor extends EmptyInterceptor {
/**
* The Serial Version UUID.
*/
private static final long serialVersionUID = 4636626262147801287L;
/* (non-Javadoc)
* @see org.hibernate.EmptyInterceptor#onFlushDirty(java.lang.Object, java.io.Serializable, java.lang.Object[], java.lang.Object[], java.lang.String[], org.hibernate.type.Type[])
*/
public boolean onFlushDirty(Object entity, Serializable id, Object[] currentState, Object[] previousState, String[] propertyNames, Type[] types) {
// doing stuff here
return false;
}
/* (non-Javadoc)
* @see org.hibernate.EmptyInterceptor#onSave(java.lang.Object, java.io.Serializable, java.lang.Object[], java.lang.String[], org.hibernate.type.Type[])
*/
public boolean onSave(Object entity, Serializable id, Object[] state, String[] propertyNames, Type[] types) {
// doing stuff here
return false;
}
}
I am wiring using a spring config file as follows:
<!-- Hibernate SessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="hsqlDbDataSource"/>
<property name="packagesToScan">
<list>
<value>com.dreamteam.lms.**.*</value>
</list>
</property>
<!-- Adding Interceptor here -->
<property name="entityInterceptor">
<bean class="com.dreamteam.lms.interceptors.EntityAuditInterceptor"></bean>
</property>
<property name="hibernateProperties">
<props>
<!--<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>-->
<prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect</prop>
<prop key="hibernate.generate_statistics">true</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.hbm2ddl.auto">create</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
<prop key="hibernate.cache.provider_class">net.sf.ehcache.hibernate.SingletonEhCacheProvider</prop>
</props>
</property>
</bean>
However, the Interceptor is never reached. Does anyone have any clue? I have also tried adding the following to the transaction manager bean definition as follows:
<property name="entityInterceptor">
<ref local="entityAuditInterceptor"/>
</property>
解决方案 Ok, just for the record, I solved this problem which turned out to be a stupid mistake from my part.
When I implemented my interceptor that extends EmptyInterceptor I added the method 'onFlushDirty' and so on. So far so good. The problem was that on using my IDE to auto-import the used classes, I ended up importing java.reflect.Type instead of org.hibernate.type.Type by mistake. Hence, I was not really overriding the interceptor method!
I noticed that when I added the @Override interceptor to my method.
Another mystery solved ... :)
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