/**
  * @param Session $session
  * @param object $entity
  * @param boolean $deep
  */
 public function persistDependencies(Session $session, $entity, $deep = false)
 {
     $reader = $this->getPropReader();
     // many-to-one Author
     if ($relationEntity = $reader($entity, 'author')) {
         $session->persist($relationEntity, $deep);
     }
 }