for ( int i = 0 ; i < deletedInstances.size(); i++ ) {
instances.remove( deletedInstances.elementAt( i ) );
}
if ( notDeletedInstances.size() > 0 ) {
txw.commit();
throw new PhotovaultException( "Unable to delete some instances of the photo" );
}
/*
All instances were succesfully deleted, so we can delete metadata as well.