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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » creating one output message from multiple input

creating one output message from multiple input

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miron

Posted: Mon Sep 09, 2002 9:38 am Post subject: creating one output message from multiple input

Apprentice

Joined: 27 Jun 2002
Posts: 39
Location: New York

Hi,

Is it possible to do something like oposite of PROPAGATE function? which means create one mq output message from multiple input?
Can compute node wait untill it recieives several input messages and only then generates one message that will be propagated?
What would be UOW in such a case?

Thanks for help.
Miron

sgopal

Posted: Mon Sep 09, 2002 4:44 pm Post subject:

Acolyte

Joined: 30 Jul 2002
Posts: 63

First solution i can think of is by using MQGet node (IA09 Support pac.
http://www-3.ibm.com/software/ts/mqseries/txppacs/ia09.html).
After input node gets the first message, message flow can have loop on MQGet node to get other messages till you get enough message for forming output message. You can store intermediate messages in an array.

Another solution, Get message one by one and store it in database until you receive enough messages to form output message.

Hope this helps.

devans

Posted: Tue Sep 10, 2002 12:32 am Post subject:

Apprentice

Joined: 18 Mar 2002
Posts: 43

You may wish to consider using the Aggregate nodes. See chapter 6 of "Using the Control Centre v2.1"

jdouch

Posted: Tue Sep 10, 2002 9:21 am Post subject:

Apprentice

Joined: 31 May 2002
Posts: 32
Location: London, UK

i agree - the aggregate node is intended for this - you may run into trouble if you are using attribute XML though - think there is a problem with returning all the original data stored.

there is a walkthrough section in the red book SG246509 which takes you through setting up the required message flows for these nodes
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WMQ/WMQI Specialist

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