private void postUpdate() {
final EventListenerGroup<PostCollectionUpdateEventListener> listenerGroup = listenerGroup( EventType.POST_COLLECTION_UPDATE );
if ( listenerGroup.isEmpty() ) {
return;
}
final PostCollectionUpdateEvent event = new PostCollectionUpdateEvent(
getPersister(),
getCollection(),
eventSource()
);
for ( PostCollectionUpdateEventListener listener : listenerGroup.listeners() ) {