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MQSeries.net Forum Index » Workflow Engines - IBM MQ Workflow & Business Process Choreographer » Listening for Workflow generated messages.

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jpappas
PostPosted: Wed Apr 24, 2002 5:17 am    Post subject: Reply with quote

Newbie

Joined: 23 Apr 2002
Posts: 5
Hi,
I've been able to create a UPES and a corresponding queue. I've also been able to create a small workflow which writes messages to that queue. I've also been able to retrieve messages from that queue. The question is - how do I create a Listener for that queue? Do I have to use JMS Pub-Sub? Thanks.
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jmac
PostPosted: Wed Apr 24, 2002 6:35 am    Post subject: Reply with quote

Jedi Knight

Joined: 27 Jun 2001
Posts: 3081
Location: EmeriCon, LLC
A simple "Queue Monitor" program which opens the queue, and waits for a message. Typically I put this 'listening' code into an endless loop, I have the program wait for a message for a specific amount of time (say 5 seconds), then wake up (to give a shutdown request a chance).

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vedbhat
PostPosted: Wed Apr 24, 2002 6:36 pm    Post subject: Reply with quote

Disciple

Joined: 19 Mar 2002
Posts: 186
Location: Singapore
Hi,

You can use the sample provided by MQSERIES - AMQSGET with little modification. AMQSGET waits only for 15 seconds so change it to larger interval or unlimited by specifying the Interval with MQWI_UNLIMITED.

Regards
Ved
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