public function fileDeleteByWildcard( $wildcard )
    {
        $wildcard = self::cleanPath( $wildcard );
        eZDebug::writeWarning( "Using " . __METHOD__ . " is not recommended since it has some severe performance issues" );
        eZDebugSetting::writeDebug( 'kernel-clustering', "dfs::fileDeleteByWildcard( '$wildcard' )" );

        self::$dbbackend->_deleteByWildcard( $wildcard );
    }