public function selectOneEntity (int $key)
    {
        try {
            $this->_prepare['selectOneEntity']->bindParam(1, $key, \PDO::PARAM_INT);
            $this->_prepare['selectOneEntity']->execute();
            
            $r = $this->_prepare['selectOneEntity']->fetchAll(\PDO::FETCH_NUM);
            $this->_prepare['selectOneEntity']->closeCursor();
            if (!empty($r)) :
                return $this->_dataContextObject->dataCallBack( $r[0][1] );
            else :
                return false;
            endif;
        } catch (\Exception $e) {
            throw $e;
        }
    }