I would say the answer to your first question is 'yes'. Sounds like you're implementing a content-based routing pattern.
If you can't use Camel to implement the pattern, then consider configuring the broker with composite destinations in combination with a selector to let the broker do the routing for you. Joe www.ttmsolutions.com Roger Hoover wrote: > > Thanks for the link, Joe. > So it looks like consumer priority is used by the broker to determine > which > subscriber to choose as the exclusive consumer? > > Does AMQ support message priorities? This ticket would suggest the answer > is no (http://issues.apache.org/activemq/browse/AMQ-122) > > Does anyone have any recommendations for achieving the semantics of a > priority queue? > > Here's what I was thinking of doing: > - Put the messages with different priorities into different queues > - Have the clients (STOMP is this case) subscribe to the various priority > queues > - The clients select() on all the sockets and when data is ready to be > read, > the client reads from socket of the highest priority queue. > > Suggests welcome. Thanks, > > Roger > > On Feb 12, 2008 5:36 AM, ttmdev <[EMAIL PROTECTED]> wrote: > >> >> Hi Roger, >> >> I'd disregard the consumer priority feature; it does not function as >> described in the consumer priority page. >> >> Here's the exclusive consumer web page. >> >> http://activemq.apache.org/exclusive-consumer.html >> >> Joe >> www.ttmsolutions.com >> >> >> >> >> >> >> Roger Hoover wrote: >> > >> > I want to implement a priority queue (message delivery ordered by >> > priority) >> > and am trying to figure out what consumer priority means. >> > >> > After looking over the documentation ( >> > http://activemq.apache.org/consumer-priority.html) and these email >> > threads, >> > the semantics of consumer priority are still not entirely clear to me. >> > >> http://www.nabble.com/Consumer-Priority-on-AMQ-5.0-to14369093s2354.html#a14369093 >> > >> http://www.nabble.com/Using-different-consumer-priorities-in-the-same-connection-td14722765s2354.html#a14722765 >> > >> > - Does consumer priority control the order of message delivery or does >> it >> > influence which consumer messages get sent to? >> > >> > - If it controls delivery order, what effect does setting a priority on >> a >> > consumer have? It would seem like the priority should be set per >> message. >> > >> > - What does Hiram mean by "exclusive consumers"? Is this different >> from >> > each message being delivered to one and one only consumer? >> > >> > - What is the weighting algorithm for priorities? >> > >> > - What is the ballpark performance penalty for priority evaluation on >> the >> > broker? >> > >> > - Does the priority value have any particular significance other than >> > being >> > greater or less than other priority levels? >> > - Is there a maximum priority value? >> > - Does priority 0 have any special meaning? >> > >> > - Does the feature exist in AMQ 4.1.1? >> > >> > - Are there any gotchas when using it with STOMP? >> > >> > I appreciate any info anyone can provide. >> > >> > Cheers, >> > >> > Roger >> > >> > >> >> -- >> View this message in context: >> http://www.nabble.com/Priority-queue-semantics-of-consumer-priority-tp15427022s2354p15433256.html >> Sent from the ActiveMQ - User mailing list archive at Nabble.com. >> >> > > -- View this message in context: http://www.nabble.com/Priority-queue-semantics-of-consumer-priority-tp15427022s2354p15440134.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
