public function isAncestorOf(NodeInterface $node)
	{
		if ($this->getLeftValue() < $node->getLeftValue()
				&& $this->getRightValue() > $node->getRightValue()) {
			
			return true;
		}
		
		return false;
	}
public function isAncestorOf(NodeInterface $node)
	{
		if ($this->getLeftValue() < $node->getLeftValue()
				&& $this->getRightValue() > $node->getRightValue()) {
			
			return true;
		}
		
		return false;
	}
public function isAncestorOf ( NodeInterface $ node ) { if ( $ this -> getLeftValue ( ) < $ node -> getLeftValue ( ) && $ this -> getRightValue ( ) > $ node -> getRightValue ( ) ) { return true ; } return false ; }
If the current node is ancestor of the given node
@param NodeInterface $node
@return boolean
@nestedSetMethod
If the current node is ancestor of the given node