import org.hibernate.event.spi.PreInsertEventListener; //导入依赖的package包/类
@PostConstruct
public void registerListeners() {
    // TODO: This method of getting a reference to the SessionFactory (and thereforce the ServiceRegistry) is Deprecated. Find out the right Hibernate 5.2 way to do this.
    EventListenerRegistry registry = entityManagerFactory.getSessionFactory().getServiceRegistry().getService(EventListenerRegistry.class);
    if (preInsertEventListeners != null) {
        registry.appendListeners(EventType.PRE_INSERT, preInsertEventListeners.toArray(new PreInsertEventListener[preInsertEventListeners.size()]));
    }
    if (postInsertEventListeners != null) {
        registry.appendListeners(EventType.POST_INSERT, postInsertEventListeners.toArray(new PostInsertEventListener[postInsertEventListeners.size()]));
    }
    if (preUpdateEventListeners != null) {
        registry.appendListeners(EventType.PRE_UPDATE, preUpdateEventListeners.toArray(new PreUpdateEventListener[preUpdateEventListeners.size()]));
    }
    if (postUpdateEventListeners != null) {
        registry.appendListeners(EventType.POST_UPDATE, postUpdateEventListeners.toArray(new PostUpdateEventListener[postUpdateEventListeners.size()]));
    }
    if (preDeleteEventListeners != null) {
        registry.appendListeners(EventType.PRE_DELETE, preDeleteEventListeners.toArray(new PreDeleteEventListener[preDeleteEventListeners.size()]));
    }
    if (postDeleteEventListeners != null) {
        registry.appendListeners(EventType.POST_DELETE, postDeleteEventListeners.toArray(new PostDeleteEventListener[postDeleteEventListeners.size()]));
    }
}
 

import org.hibernate.event.spi.PreInsertEventListener; //导入依赖的package包/类
private boolean preInsert() {
	boolean veto = false;

	final EventListenerGroup<PreInsertEventListener> listenerGroup = listenerGroup( EventType.PRE_INSERT );
	if ( listenerGroup.isEmpty() ) {
		return veto;
	}
	final PreInsertEvent event = new PreInsertEvent( getInstance(), getId(), getState(), getPersister(), eventSource() );
	for ( PreInsertEventListener listener : listenerGroup.listeners() ) {
		veto |= listener.onPreInsert( event );
	}
	return veto;
}
 

import org.hibernate.event.spi.PreInsertEventListener; //导入依赖的package包/类
private boolean preInsert() {
	final EventListenerGroup<PreInsertEventListener> listenerGroup = listenerGroup( EventType.PRE_INSERT );
	if ( listenerGroup.isEmpty() ) {
		// NO_VETO
		return false;
	}
	boolean veto = false;
	final PreInsertEvent event = new PreInsertEvent( getInstance(), null, getState(), getPersister(), eventSource() );
	for ( PreInsertEventListener listener : listenerGroup.listeners() ) {
		veto |= listener.onPreInsert( event );
	}
	return veto;
}
 

import org.hibernate.event.spi.PreInsertEventListener; //导入依赖的package包/类
@Override
protected void configure() {
    bind(TestEventListener.class)
            .to(PostDeleteEventListener.class)
            .to(PreDeleteEventListener.class)
            .to(PreInsertEventListener.class)
            .to(PostInsertEventListener.class)
            .to(PreUpdateEventListener.class)
            .to(PostUpdateEventListener.class)
            .to(PostCommitInsertEventListener.class)
            .to(PostCommitUpdateEventListener.class)
            .to(PostCommitDeleteEventListener.class)
            .in(PerThread.class);
}
 

import org.hibernate.event.spi.PreInsertEventListener; //导入依赖的package包/类
/**
 * Test the application event injectors.
 */
@Test
public void testEventInjection() {

    // Create a fake application.
    SessionFactory factoryFactory = locator
            .getService(SessionFactory.class);
    Assert.assertNotNull(factoryFactory);


    ServiceRegistry serviceRegistry = ((SessionFactoryImpl) factoryFactory)
            .getServiceRegistry();
    EventListenerRegistry eventRegistry = serviceRegistry
            .getService(EventListenerRegistry.class);

    EventListenerGroup<PreInsertEventListener> priGroup = eventRegistry
            .getEventListenerGroup(EventType.PRE_INSERT);
    assertContainsListener(priGroup);

    EventListenerGroup<PostInsertEventListener> poiGroup = eventRegistry
            .getEventListenerGroup(EventType.POST_INSERT);
    assertContainsListener(poiGroup);

    EventListenerGroup<PreUpdateEventListener> pruGroup = eventRegistry
            .getEventListenerGroup(EventType.PRE_UPDATE);
    assertContainsListener(pruGroup);

    EventListenerGroup<PostUpdateEventListener> pouGroup = eventRegistry
            .getEventListenerGroup(EventType.POST_UPDATE);
    assertContainsListener(pouGroup);

    EventListenerGroup<PreDeleteEventListener> prdGroup = eventRegistry
            .getEventListenerGroup(EventType.PRE_DELETE);
    assertContainsListener(prdGroup);

    EventListenerGroup<PostDeleteEventListener> podGroup = eventRegistry
            .getEventListenerGroup(EventType.POST_DELETE);
    assertContainsListener(podGroup);

    EventListenerGroup<PostInsertEventListener> pciGroup = eventRegistry
            .getEventListenerGroup(EventType.POST_COMMIT_INSERT);
    assertContainsListener(pciGroup);

    EventListenerGroup<PostUpdateEventListener> pcuGroup = eventRegistry
            .getEventListenerGroup(EventType.POST_COMMIT_UPDATE);
    assertContainsListener(pcuGroup);

    EventListenerGroup<PostDeleteEventListener> pcdGroup = eventRegistry
            .getEventListenerGroup(EventType.POST_COMMIT_DELETE);
    assertContainsListener(pcdGroup);
}