original_string: public function getPersistenceEventQueue()
      {
          if (null === $this->persistenceEventQueue) {
              $this->persistenceEventQueue = new Persistence\PersistenceEventQueue(
                  $this->getConfigurationRegistry(),
                  $this->getEventDispatcher()
              );
          }
  
          return $this->persistenceEventQueue;
      }
code: public function getPersistenceEventQueue()
      {
          if (null === $this->persistenceEventQueue) {
              $this->persistenceEventQueue = new Persistence\PersistenceEventQueue(
                  $this->getConfigurationRegistry(),
                  $this->getEventDispatcher()
              );
          }
  
          return $this->persistenceEventQueue;
      }
code_tokens: public function getPersistenceEventQueue ( ) { if ( null === $ this -> persistenceEventQueue ) { $ this -> persistenceEventQueue = new Persistence \ PersistenceEventQueue ( $ this -> getConfigurationRegistry ( ) , $ this -> getEventDispatcher ( ) ) ; } return $ this -> persistenceEventQueue ; }
docstring: Returns the persistence event queue.
  
  @return Persistence\PersistenceEventQueue
docstring_tokens: Returns the persistence event queue .