Ok, I'm a little confused on how to specify the the lastImage policy. Is it possible to do this programmatically?
kitplummer wrote: > > What I am trying to do is create a notification mechanism for interested > servers. For example, there is a system flag (which defines a system > behavior) which would be published. Any consumer interested in that > system flag would get latest system state by consuming a published > message. > > New subscribers would not need to access any previous messages, only the > most recent. > > I'm going to look into the Subscription Recovery stuff a bit. Looks like > the Retroactive Consumer might do the trick. Thanks. > > Kit > > > James.Strachan wrote: >> >> Could you describe your requirements a little more just to check I >> understand. You basically want a topic which always sends 1 message to >> every >> consumer when they start subscribing and this message changes over time >> right? When the message changes is it sent to all consumers active, or is >> it >> just sent to new subscribers? >> >> You could go with durable subscribers; but then that means all messages >> sent >> to a topic are persisted until your consumer restarts. It seems like you >> just want 'the last one' available to new consumers? >> >> So maybe using a Subscription Recovery Policy might be cleaner... >> http://activemq.org/Subscription+Recovery+Policy >> >> so that you can decide what message is sent to new consumers using a >> cached >> 'last image' that is sent when new consumers start; then you just send a >> message to everyone when this 'last image' changes? >> >> >> On 5/4/06, kitplummer <[EMAIL PROTECTED]> wrote: >>> >>> >>> I suppose all I need to do is setup the consumers as durable >>> subscribers. >>> The producer side doesn't matter does it? >>> -- >>> View this message in context: >>> http://www.nabble.com/Special-Topic-Queue...-t1558344.html#a4233834 >>> Sent from the ActiveMQ - User forum at Nabble.com. >>> >>> >> >> >> -- >> >> James >> ------- >> http://radio.weblogs.com/0112098/ >> >> > -- View this message in context: http://www.nabble.com/Special-Topic-Queue...-t1558344.html#a4236924 Sent from the ActiveMQ - User forum at Nabble.com.
