public function index()
    {
        $this->getListingService()
            ->setOrder($this->getOrder())
            ->setPagination($this->getPagination())
            ->getFilters()->add($this->getSearchFilter());
        $this->set(
            [
                $this->getEntityNamePlural() => $this->getListingService()
                    ->getList(),
                'pagination' => $this->getListingService()->getPagination()
            ]
        );
    }