function getFileList( $scopes = false, $excludeScopes = false,  $limit = false, $path = false  )
    {
        eZDebugSetting::writeDebug( 'kernel-clustering',
                                    sprintf( "dfs::getFileList( array( %s ), %d )",
                                             is_array( $scopes ) ? implode( ', ', $scopes ) : '', (int) $excludeScopes ) );
        return self::$dbbackend->_getFileList( $scopes, $excludeScopes, $limit, $path );
    }