private function dispatchTransitionEvent(TransitionInterface $transition, TransitionEvent $event, $transitionState)
    {
        $this->dispatcher->dispatch($transitionState, $event);
        $this->dispatcher->dispatch($transitionState.'.'.$transition->getName(), $event);
        if (null !== $this->getGraph()) {
            $this->dispatcher->dispatch($transitionState.'.'.$this->getGraph().'.'.$transition->getName(), $event);
        }
    }