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From Christian Müller <>
Subject Re: Is it possible to implement "Last value queue" using Camel?
Date Mon, 25 Feb 2013 21:32:44 GMT
You have to build your own solution on top of what Camel already provides...


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Am 25.02.2013 08:01 schrieb "Paul Gale" <>:

> Hi,
> FYI: I am using ActiveMQ 5.8 with Camel 2.10.3.
> Is it possible to implement 'last value queue' type semantics using Camel?
> As far as I know ActiveMQ does not natively support 'last value queues'
> therefore I am left trying to implement this via Camel.
> The particular scenario I am looking to implement is as follows: using
> Camel's Delayer EIP messages that match a certain criteria will be delayed
> by 24 hours, say, before being delivered. If an update to a message already
> held by the Delayer arrives it must over write the previously seen version
> of the same message. For example, if ten updates to the same message arrive
> during the delay period then only the tenth update is dispatched to the
> consumer.
> This is essentially the inverse of the IdempotentConsumer EIP which
> dispatches the first (as opposed to the last) version of a message an then
> filters out subsequent duplicates.
> Thanks,
> Paul

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