*
* @throws HibernateException
*/
public void onDelete(DeleteEvent event, Set transientEntities) throws HibernateException {
final EventSource source = event.getSession();
final PersistenceContext persistenceContext = source.getPersistenceContext();
Object entity = persistenceContext.unproxyAndReassociate( event.getObject() );
EntityEntry entityEntry = persistenceContext.getEntry( entity );
final EntityPersister persister;
final Serializable id;
final Object version;
if ( entityEntry == null ) {
LOG.trace( "Entity was not persistent in delete processing" );
persister = source.getEntityPersister( event.getEntityName(), entity );
if ( ForeignKeys.isTransient( persister.getEntityName(), entity, null, source ) ) {
deleteTransientEntity( source, entity, event.isCascadeDeleteEnabled(), persister, transientEntities );
// EARLY EXIT!!!
return;
}
performDetachedEntityDeletionCheck( event );
id = persister.getIdentifier( entity, source );
if ( id == null ) {
throw new TransientObjectException(
"the detached instance passed to delete() had a null identifier"
);
}
final EntityKey key = source.generateEntityKey( id, persister );
persistenceContext.checkUniqueness( key, entity );
new OnUpdateVisitor( source, id, entity ).process( entity, persister );
version = persister.getVersion( entity );
entityEntry = persistenceContext.addEntity(
entity,
( persister.isMutable() ? Status.MANAGED : Status.READ_ONLY ),
persister.getPropertyValues( entity ),
key,
version,
LockMode.NONE,
true,
persister,
false,
false
);
}
else {
LOG.trace( "Deleting a persistent instance" );
if ( entityEntry.getStatus() == Status.DELETED || entityEntry.getStatus() == Status.GONE ) {
LOG.trace( "Object was already deleted" );
return;
}
persister = entityEntry.getPersister();
id = entityEntry.getId();
version = entityEntry.getVersion();
}
/*if ( !persister.isMutable() ) {
throw new HibernateException(
"attempted to delete an object of immutable class: " +
MessageHelper.infoString(persister)
);
}*/
if ( invokeDeleteLifecycle( source, entity, persister ) ) {
return;
}
deleteEntity( source, entity, entityEntry, event.isCascadeDeleteEnabled(),
event.isOrphanRemovalBeforeUpdates(), persister, transientEntities );
if ( source.getFactory().getSettings().isIdentifierRollbackEnabled() ) {
persister.resetIdentifier( entity, id, version, source );
}
}