Andrew M wrote:
Could someone direct me to docs or an example showing how to create topics
with include last image caching using java?
I'm no expert on the JMS clients binding url format. However I modified
the properties of the direct example[1] as a simple test:
1. create your exchange (I could only get a topic exchange to work):
qpid-config add exchange topic my-exchange --ive
2. configure binding URL for the destination:
destination.directQueue = topic://my-exchange//?routingkey='routing_key'
3. run the Producer
4. now run a Consumer, and see that it (only) gets the last message
Hope this helps.
[1]
https://svn.apache.org/repos/asf/qpid/trunk/qpid/java/client/example/src/main/java/org/apache/qpid/example/jmsexample/direct
Thanks,
Andrew
-----Original Message-----
From: Robert Greig [mailto:[email protected]]
Sent: Friday, July 03, 2009 8:35 AM
To: [email protected]
Subject: RE: qpid + Java without JMS...?
My issue at the time was why have a 'unnamed' exchange? Why not just use
amq.direct? Also why bake that into the protocol rather than just allowing
implementations to offer that as an option - if you are using a higher level
abstraction such as JMS or WCF the bindings are reliably handled for you.
RG
-----Original Message-----
From: Gordon Sim <[email protected]>
Sent: 03 July 2009 02:59
To: [email protected]
Subject: Re: qpid + Java without JMS...?
Robert Greig wrote:
I seem to recall that we bind both to the unnamed exchange and
amq.direct. There was a lot of debate at the time about this (well I
argued about it!). I was and still am of the opinion that the unnamed
exchange is pointless and confusing and introduced for a very bad
reason - namely treating the protocol as an API.
Yes, there is always a binding to the default exchange for each queue,
using the queue name as the binding key. This is created automatically
by the broker and the bindings from the default exchange cannot be
altered (except indirectly through the creation and deletion of queues).
The default exchange in my view is that it provides an error free direct
addressing mode for queues and avoids the need for any explicit bindings
in that simple case. To me that has value.
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