}
}
private static void processDereferencedCollection(PersistentCollection coll, SessionImplementor session) {
final PersistenceContext persistenceContext = session.getPersistenceContext();
final CollectionEntry entry = persistenceContext.getCollectionEntry( coll );
final CollectionPersister loadedPersister = entry.getLoadedPersister();
if ( loadedPersister != null && LOG.isDebugEnabled() ) {
LOG.debugf(
"Collection dereferenced: %s",
MessageHelper.collectionInfoString( loadedPersister,
coll, entry.getLoadedKey(), session
)
);
}
// do a check
final boolean hasOrphanDelete = loadedPersister != null && loadedPersister.hasOrphanDelete();
if ( hasOrphanDelete ) {
Serializable ownerId = loadedPersister.getOwnerEntityPersister().getIdentifier( coll.getOwner(), session );
if ( ownerId == null ) {
// the owning entity may have been deleted and its identifier unset due to
// identifier-rollback; in which case, try to look up its identifier from
// the persistence context
if ( session.getFactory().getSettings().isIdentifierRollbackEnabled() ) {
final EntityEntry ownerEntry = persistenceContext.getEntry( coll.getOwner() );
if ( ownerEntry != null ) {
ownerId = ownerEntry.getId();
}
}
if ( ownerId == null ) {
throw new AssertionFailure( "Unable to determine collection owner identifier for orphan-delete processing" );
}
}
final EntityKey key = session.generateEntityKey( ownerId, loadedPersister.getOwnerEntityPersister() );
final Object owner = persistenceContext.getEntity( key );
if ( owner == null ) {
throw new AssertionFailure(
"collection owner not associated with session: " +
loadedPersister.getRole()
);
}
final EntityEntry e = persistenceContext.getEntry( owner );
//only collections belonging to deleted entities are allowed to be dereferenced in the case of orphan delete
if ( e != null && e.getStatus() != Status.DELETED && e.getStatus() != Status.GONE ) {
throw new HibernateException(
"A collection with cascade=\"all-delete-orphan\" was no longer referenced by the owning entity instance: " +
loadedPersister.getRole()
);
}
}
// do the work
entry.setCurrentPersister( null );
entry.setCurrentKey( null );
prepareCollectionForUpdate( coll, entry, session.getFactory() );
}