How does message persistence affect the order of message production by a client and delivery by the JMS server?
Location: http://www.jguru.com/faq/view.jsp?EID=1155 Created: Nov 19, 1999 Modified: 2000-03-13 18:05:31.914 Author: Jerry Smith (http://www.jguru.com/guru/viewbio.jsp?EID=9) It’s convenient to view persistent and nonpersistent messages from the same producing client as elements of a partitioned space, even if sent to the same destination. There is no guarantee that a consuming client will even receive a nonpersistent message; hence, nonpersistent messages must be exempt from any logical conditions on message order in the producing client. A related issue is that, at best, messages are only ordered within each message-producing session by destination. Message priority is another related factor. In general, messages with higher priority will arrive before messages of lower priority, within a session, but it is not possible to depend on high-priority nonpersistent messages being delivered before low-priority persistent messages.
