FosRestBundle Controller inheritance

ArticleController.php

<?php

/**
 * RestController extends FosRestController, and provides generic CRUD actions for collections and resources.
 */
class ArticleController extends RestController
{
    /**
     * Display the collection (GET)
     *
     * @param ParamFetcher $paramFetcher
     *
     * @View()
     *
     * @QueryParam(name="limit", requirements="\d+", default="10", description="items per page")
     * @QueryParam(name="offset", requirements="\d+", default="0", description="offset")
     *
     * @return array
     */
    public function getArticlesAction(ParamFetcher $paramFetcher)
    {
        return parent::retrieveCollection($paramFetcher);
    }

    /**
     * Create a new item (POST)
     *
     * @View()
     *
     * @return \FOS\RestBundle\View\RedirectView
     */
    public function postArticlesAction()
    {
        return parent::createItem();
    }

    /**
     * Display the item (GET)
     *
     * @param string $id entity id
     *
     * @View()
     *
     * @return Article
     */
    public function getArticleAction($id)
    {
        return parent::retrieveItem($id);
    }

    /**
     * Update an existing item (PUT)
     *
     * @param string $id entity id
     *
     * @View()
     *
     * @return \FOS\RestBundle\View\RedirectView
     */
    public function putArticleAction($id)
    {
        return parent::updateItem($id);
    }

    /**
     * Delete an item (DELETE)
     *
     * @param string $id entity id
     *
     * @View()
     *
     * @return \FOS\RestBundle\View\RedirectView
     */
    public function deleteArticleAction($id)
    {
        return parent::deleteItem($id);
    }

    /*********************
     * Forms
     *********************/

    /**
     * Form for creating a new item (GET)
     *
     * @View()
     *
     * @return \Symfony\Component\Form\Form
     */
    public function newArticleAction()
    {
        return parent::entityForm();
    }

    /**
     * Form for updating an existing item (GET)
     *
     * @param string $id entity id
     *
     * @View()
     *
     * @return \Symfony\Component\Form\Form
     */
    public function editArticleAction($id)
    {
        return parent::entityForm($id);
    }

Hi ! It seems very interesting, but where can we find your RestController class ?