/**
* Inserts the sibling node for existing node? identified by $refId.
* Parameter $pos points a position of insertion
* BEFORE - before ref node
* AFTER - after ref node
*
* Inserting a node before root will throw exception
*
* @param int $id
* @param array|Axis_NSTree_Node $data
* @return Axis_NSTree_Node
* @throws Axis_NSTree_Exception
*/
public function insertSibling($refId, $data, $pos = self::BEFORE)
{
$newId = $this->_table->allocSibling($refId, $pos);
return $this->_bindNode($newId, $data);
}
