/**
* Sets the id of the order base object.
*
* @param string $id Unique ID of the order base object
*/
public function setId($id)
{
if (($this->_values['id'] = MShop_Common_Item_Abstract::checkId($this->getId(), $id)) === null) {
$this->_modified = true;
} else {
$this->_modified = false;
}
}