public function setUrl(UrlContract $url)
    {
        $this->url = $url;
        $this->dirExists = null;
        return $this;
    }
public function setUrl(UrlContract $url)
    {
        $this->url = $url;
        $this->dirExists = null;
        return $this;
    }
public function setUrl ( UrlContract $ url ) { $ this -> url = $ url ; $ this -> dirExists = null ; return $ this ; }
Set the directory url

@param UrlContract $url

@return self
Set the directory url