interface ContentRepositoryInterface

interface ContentRepositoryInterface {

  /**
   * Return a content object by it's id or null if there is none.
   *
   * If the returned content implements RouteAwareInterface, it will be used
   * to get the route from it to generate an URL.
   *
   * @param string $id id of the content object
   *
   * @return object A content that matches this id.
   */
  public function findById($id);

  /**
   * Return the content identifier for the provided content object for
   * debugging purposes.
   *
   * @param object $content A content instance
   *
   * @return string|null $id id of the content object or null if unable to determine an id
   */
  public function getContentId($content);

}