/**
* Constructor
*
* @param string $name
* @param int $mode mode in octal (0XXX)
* @return void
**/
public function __construct($name, $mode = null)
{
parent::__construct($name);
$this->setMode($mode);
}
/**
* Constructor
*
* @param string $from endpoint (what the link points to)
* @param string $to used as $name for Node
* @return void
**/
public function __construct($from, $to)
{
parent::__construct($to);
$this->setEndpoint($from);
}