Nevermind! I had a weird bug in my test. Turns out it does exactly what I expected it to do. New messages aren't dispatched until you call acknowledge() or commit.. which is just what I want!
KEvin On Sat, Oct 31, 2015 at 10:49 AM, Kevin Burton <bur...@spinn3r.com> wrote: > I'm finding the documentation for usePrefetchExtension to be rather > lacking > > What exactly does it do? > > The documentation says: > > > the prefetch extension is used when a message is delivered but not > acked, such that the broker can dispatch another message (e.g., prefetch == > 0), the idea being that there will always be prefetch num messages pending. > It also allows a transaction batch to exceed the prefetch value. > > What I want to do is figure out a way for the broker to NOT send another > message into the prefetch until the session I'm onhas either commit() or > rollback(). > > This way I am not sitting on a message doing nothing with it... > > We're using normal transacted sessions.. AKA: > > Session session = connection.createSession( true, > Session.SESSION_TRANSACTED ); > > I *think* what is supposed to happen, is that normally, it extends the > prefetch to be the number of messages read but unacknowledged PLUS the > prefetch value. > > I would assume that if I disabled it and I haven't yet called session > commit that I shouldn't get prefetched values. > > But that doesn't appear to be the case. If I use a MessageListener or > just manually receive I get a new MessageDispatch event after I receive the > message. > > > > -- > > We’re hiring if you know of any awesome Java Devops or Linux Operations > Engineers! > > Founder/CEO Spinn3r.com > Location: *San Francisco, CA* > blog: http://burtonator.wordpress.com > … or check out my Google+ profile > <https://plus.google.com/102718274791889610666/posts> > > -- We’re hiring if you know of any awesome Java Devops or Linux Operations Engineers! Founder/CEO Spinn3r.com Location: *San Francisco, CA* blog: http://burtonator.wordpress.com … or check out my Google+ profile <https://plus.google.com/102718274791889610666/posts>
