public function getAllNodeIdentifiers()
    {
        $ret = [];

        if ($this->isSuccessful) {
            foreach ($this->rawResponse['hits']['hits'] as $document) {
                $ret[] = $document['_id'];
            }
        }

        return $ret;
    }
public function getAllNodeIdentifiers()
    {
        $ret = [];

        if ($this->isSuccessful) {
            foreach ($this->rawResponse['hits']['hits'] as $document) {
                $ret[] = $document['_id'];
            }
        }

        return $ret;
    }
public function getAllNodeIdentifiers ( ) { $ ret = [ ] ; if ( $ this -> isSuccessful ) { foreach ( $ this -> rawResponse [ 'hits' ] [ 'hits' ] as $ document ) { $ ret [ ] = $ document [ '_id' ] ; } } return $ ret ; }
Aggregate all node identifiers and return the array

@return int[]
Aggregate all node identifiers and return the array