public function __construct($res, $type = false, $item_type = false, $data_type = false, $render_type = false) { if (!$item_type) { $item_type = "JSONSchedulerDataItem"; } if (!$data_type) { $data_type = "SchedulerDataProcessor"; } if (!$render_type) { $render_type = "JSONRenderStrategy"; } parent::__construct($res, $type, $item_type, $data_type, $render_type); }