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From Arnaud Simon <asi...@redhat.com>
Subject Re: Is it possible to use a pub/sub exchange but let the listener receive all messages the producer sent
Date Wed, 01 Apr 2009 08:04:23 GMT
Andrew Wright wrote:
> Would a durable subscriber (a la JMS) work? Not sure of the c++ api to 
> recreate this. That would retain messages received on the exchange 
> since first registration of the client.
>
In the JMS world, Chan is after durable subscribers. In the AMQP world 
you would create durable queues bound to the Topic exchange.

Arnaud
> Another potential option may be a 'ring LVQ topic' - one that holds 
> the last n values which would be sent to a new joiner. Again, not sure 
> if current qpid binding semantics allow this.
>
> Cheers,
> Andrew
>
>
> On 31 Mar 2009, at 18:23, Shan Wang wrote:
>
>> Hi All,
>>
>>
>>
>> According to the document, normally a listener of a publish/subscribe
>> kind of exchange can only receive messages after it begins running. Is
>> there any way to let the listeners receive all the messages ever sent by
>> producer?
>>
>>
>>
>> Basically what I need is to have multiple listeners subscribe to the
>> same queue and each receive exact the same messages sent by the
>> producer. It does seem to be possible using QPID.
>>
>>
>>
>> Thanks & Regards,
>>
>> Shan
>>
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