Invalidation cache

class TaskListener
{
    private $redis;

    public function __construct(\Redis $redis)
    {
        $this->redis = $redis;
    }

    public function postPersist(Task $task, LifecycleEventArgs $args)
    {
        $this->redis->expire('[tasks_all][1]', 0);
    }

    public function postUpdate(Task $task, LifecycleEventArgs $args)
    {
        $this->redis->expire('[tasks_all][1]', 0);
    }

    public function postRemove(Task $task, LifecycleEventArgs $args)
    {
        $this->redis->expire('[tasks_all][1]', 0);
    }
}