/** * 入队 * * @param item * @param identity * @param delegate */ public void pushItem(QueueItem item, String identity, QueueDelegate delegate) { Queue queue = _queues.get(identity); if (queue == null) { queue = new Queue(identity); queue.delegate = delegate; _queues.put(identity, queue); } queue.enqueue(item); if (!queue.isRunning) { next(identity); } }