private function _loadDelFile()
    {
        if ($this->_delGen == -1) {
            // There is no delete file for this segment
            return null;
        } else if ($this->_delGen == 0) {
            // It's a segment with pre-2.1 format delete file
            // Try to load deletions file
            return $this->_loadPre21DelFile();
        } else {
            // It's 2.1+ format deleteions file
            return $this->_load21DelFile();
        }
    }
private function _loadDelFile()
    {
        if ($this->_delGen == -1) {
            // There is no delete file for this segment
            return null;
        } else if ($this->_delGen == 0) {
            // It's a segment with pre-2.1 format delete file
            // Try to load deletions file
            return $this->_loadPre21DelFile();
        } else {
            // It's 2.1+ format deleteions file
            return $this->_load21DelFile();
        }
    }
private function _loadDelFile ( ) { if ( $ this -> _delGen == - 1 ) { // There is no delete file for this segment return null ; } else if ( $ this -> _delGen == 0 ) { // It's a segment with pre-2.1 format delete file // Try to load deletions file return $ this -> _loadPre21DelFile ( ) ; } else { // It's 2.1+ format deleteions file return $ this -> _load21DelFile ( ) ; } }
Load detetions file

Returns bitset or an array depending on bitset extension availability

@return mixed
@throws Zend_Search_Lucene_Exception
Load detetions file