* @param event The load event to be handled.
* @throws HibernateException
*/
public void onLoad(LoadEvent event, LoadEventListener.LoadType loadType) throws HibernateException {
final SessionImplementor source = event.getSession();
EntityPersister persister;
if ( event.getInstanceToLoad() != null ) {
persister = source.getEntityPersister( null, event.getInstanceToLoad() ); //the load() which takes an entity does not pass an entityName
event.setEntityClassName( event.getInstanceToLoad().getClass().getName() );
}
else {
persister = source.getFactory().getEntityPersister( event.getEntityClassName() );
}
if ( persister == null ) {
throw new HibernateException(
"Unable to locate persister: " +
event.getEntityClassName()
);
}
if ( persister.getIdentifierType().isComponentType() && EntityMode.DOM4J == event.getSession().getEntityMode() ) {
// skip this check for composite-ids relating to dom4j entity-mode;
// alternatively, we could add a check to make sure the incoming id value is
// an instance of Element...
}
else {
Class idClass = persister.getIdentifierType().getReturnedClass();
if ( idClass != null && ! idClass.isInstance( event.getEntityId() ) ) {
throw new TypeMismatchException(
"Provided id of the wrong type. Expected: " + idClass + ", got " + event.getEntityId().getClass()
);
}
}
EntityKey keyToLoad = new EntityKey( event.getEntityId(), persister, source.getEntityMode() );
try {
if ( loadType.isNakedEntityReturned() ) {
//do not return a proxy!
//(this option indicates we are initializing a proxy)