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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Howto define complex choice message

Howto define complex choice message

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neval

Posted: Thu Nov 28, 2002 6:13 am Post subject: Howto define complex choice message

Novice

Joined: 20 Nov 2002
Posts: 14

Hi there,

we try to define a message with the following structure:

Header1
-----------
Header2
----------
Choice:
Body1
Body2
none of Body1 and Body2
---------

The problem is that the choice compound type could have Body1 or
Body2 or none of them. It is possible to define a choice compound type
on level upper like this:

----------
Choice:
Element1
Element2
----------

where Element1 is defined as

Header1
-----------
Header2
----------

and Element2 as

Header1
-----------
Header2
----------
Choice:
Body1
Body2
---------

But is that the only way to implement this? Thanks for your hints.

Regards

lillo

Posted: Thu Nov 28, 2002 6:50 am Post subject:

Master

Joined: 11 Sep 2001
Posts: 224

Hi,

Take a look to the redbook "Developing solutions in WebSphere MQ Integrator" where you could find some example of how to implement this kind of messages.

Cheers,
_________________
Lillo
IBM Certified Specialist - WebSphere MQ

kwelch

Posted: Mon Dec 02, 2002 12:12 pm Post subject:

Master

Joined: 16 May 2001
Posts: 255

If the application that is creating the message is willing to put a counter or indicator in the headers, you could make Body1 and Body2 occur depending on those counters. For example then if Cntr1 was 1 that would tell you Body1 was present, if it were Cntr2 was 1 Body2 was present and if it they were both 0 none would be present.

We used this concept for a project where we had an unknown combination of segments coming in on one message and those segments might occur more than once.

Karen

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