Doctrine\ODM\PHPCR\UnitOfWork::initializeObject PHP Method

    public function initializeObject($obj)
    {
        if ($obj instanceof Proxy) {
            $obj->__load();
        } elseif ($obj instanceof PersistentCollection) {
            $obj->initialize();
        }
    }

 /**
  * {@inheritDoc}
  */
 public function initializeObject($document)
 {
     if (!is_object($document)) {
         throw new InvalidArgumentException('Parameter $document needs to be an object, ' . gettype($document) . ' given');
     }
     $this->unitOfWork->initializeObject($document);
 }