public function fetchRow(array $where = null, array $column = null, array $order = null)
    {
        $qp = $this->_fetch($where, $column, $order);

        $row = $this->_fetchRow($qp['query'], $qp['params']);
        $className = $this->_rowClass;
        $class = new $className($this);

        if (!$row) {
            return false;
        }

        $class->setData($row);

        return $class;
    }