Determine if client recieved message

[yesnid <ns...@pelco.com>]

Hello,

I am trying to determine if there is a way that a entity that sends a
message can determine if it has been consumed by a client? I need to know if
there is a way to determine if a message that I sent expires and also if it
fails to be delivered, e.g. if the queue that it is headed to does not
exist?

Thank you.
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Re: Determine if client recieved message

[Bruce Snyder <br...@gmail.com>]

On Mon, Oct 27, 2008 at 4:11 PM, yesnid <ns...@pelco.com> wrote:
>
> Hello,
>
> I am trying to determine if there is a way that a entity that sends a
> message can determine if it has been consumed by a client? I need to know if
> there is a way to determine if a message that I sent expires and also if it
> fails to be delivered,

Because the point of JMS is to completely detach the sender and
receiver, the only way I can think to determine whether a message was
properly consumed is by using request/reply messaging
(http://www.eaipatterns.com/RequestReplyJmsExample.html). If there is
a response back to the sender within X amount of time, then the sender
knows that the message did not expire.

> e.g. if the queue that it is headed to does not
> exist?

If the queue to which a message is being sent does not exist, ActiveMQ
will create the queue automatically, so you don't really need to worry
about that.

Bruce
-- 
perl -e 'print unpack("u30","D0G)U8V4\@4VYY9&5R\"F)R=6-E+G-N>61E<D\!G;6%I;\"YC;VT*"
);'

Apache ActiveMQ - http://activemq.org/
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Blog: http://bruceblog.org/

Re: Determine if client recieved message

[Rob Davies <ra...@gmail.com>]

There's advisories in 5.2 that will enable to to get a notification of  
when a message is consumed: http://activemq.apache.org/advisory-message.html


cheers,

Rob

Rob Davies
http://fusesource.com
http://rajdavies.blogspot.com/


On 27 Oct 2008, at 22:11, yesnid wrote:

>
> Hello,
>
> I am trying to determine if there is a way that a entity that sends a
> message can determine if it has been consumed by a client? I need to  
> know if
> there is a way to determine if a message that I sent expires and  
> also if it
> fails to be delivered, e.g. if the queue that it is headed to does not
> exist?
>
> Thank you.
> -- 
> View this message in context: http://www.nabble.com/Determine-if-client-recieved-message-tp20197541p20197541.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>