On 1/17/07, mers <[EMAIL PROTECTED]> wrote:
Hi, I'm having trouble understanding how acknowledgements work in ActiveMQ.
FWIW Acknowledgement is a JMS thing
I'll try to keep the questions short and to the point. 1) How does a MessageProducer know the message it sent was received by the broker if persistence is enabled?
it internally receieves a receipt from the broker which unblocks the send() method
2) Does an acknowledgement sent by a MessageConsumer propagate to a MessageProducer or just to the broker? Does this depend on whether persistence is enabled or disabled?
Just the broker. By definition in MOM, the broker is the level of indirection between a producer and consumer; each client just deals with the broker
3) Can a MessageProducer know a message it sent was received by a MessageConsumer, i.e. have an end-to-end acknowledgement?
No - if you want that the consumer sends a reply to the producer via the JMSReplyTo -- James ------- http://radio.weblogs.com/0112098/
