public function order($order = null) {
		if ($order) {
			$this->_config['order'] = $order;
			return $this;
		}
		return $this->_config['order'];
	}
public function order($order = null) {
		if ($order) {
			$this->_config['order'] = $order;
			return $this;
		}
		return $this->_config['order'];
	}
public function order ( $ order = null ) { if ( $ order ) { $ this -> _config [ 'order' ] = $ order ; return $ this ; } return $ this -> _config [ 'order' ] ; }
Set and get method for the query's order specification.

@param array|string|null $order
@return array|\lithium\data\Query
Set and get method for the query s order specification .