[rabbitmq-discuss] Sequential message processing guarantee

[Yogesh Ketkar]

Running the code below, gives
channel.basicConsume(QUEUE_NAME, autoAck, CONSUMER_TAG,
    	new DefaultConsumer(channel)  {
        @Override
        public void handleDelivery(String consumerTag, Envelope
envelope, BasicProperties properties, byte[] body) {
                System.out.println(Thread.currentThread().getName());
         }
}

o/p like
pool-1-thread-1
pool-1-thread-2
pool-1-thread-3
etc

There are multiple consumer threads consuming the messages.
Though multiple threads are consuming the messages, I observed that
messages still get processed sequentially.
Is that the case and if NOT, what is the way to guarantee sequential
processing of messages on one queue?

regards, Yogesh