993      * @param string    $suffix subpart identifier
998     protected function getIndex($idx, $suffix)  argument
1001         $fn = $conf['indexdir'] . '/' . $idx . $suffix . '.idx';
1010      * @param string    $suffix subpart identifier
1016     protected function saveIndex($idx, $suffix, &$lines)  argument
1019         $fn = $conf['indexdir'] . '/' . $idx . $suffix;
1036      * @param string    $suffix subpart identifier
1042     protected function getIndexKey($idx, $suffix, $id)  argument
1045         $fn = $conf['indexdir'] . '/' . $idx . $suffix . '.idx';
1061      * @param string    $suffix subpart identifier
1068     protected function saveIndexKey($idx, $suffix, $id, $line)  argument
1073         $fn = $conf['indexdir'] . '/' . $idx . $suffix;
1105      * @param string    $suffix subpart identifier
1111     protected function addIndexKey($idx, $suffix, $value)  argument
1113         $index = $this->getIndex($idx, $suffix);
1118             if (!$this->saveIndex($idx, $suffix, $index)) {