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| Multiple Transactions on the same queue |
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| LH33 |
 Posted: Thu May 22, 2003 12:12 pm Post subject: Multiple Transactions on the same queue |
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Master
Joined: 21 Nov 2002
Posts: 200
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HI!
I have a requirement that will have an application put 5 different XML transactions on the same queue. I am looking for the right way to code a messge flow or flows to process the transactions. Each transaction has different data transformation logic associated with it.
Would I have 1 flow that reads the queue and based on a unique "Action" XML tag, put the message on another queue that has a separate flow associated with that transaction. In other words I would have 1 queue coming into one flow that would send each of the 5 different transactions to a queue just for that transaction type and have a message flow per transaction type to then do the data transformations. Or would I have just one flow that has a compute node that has a case statement for the 5 types and does the logic for each type in the same flow?
There are a lot of transformations that need to occur and I am concerned about peformance if it is all in one flow.
Any suggestions would be greatly appreciated!
Thanks!! |
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| jefflowrey |
| Posted: Thu May 22, 2003 12:36 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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A typical design would be
One queue
A compute node to figure out which type of transaction it is, and assign a label (in your case, probably just set the label to the value of the ACTION tag)
A Route to Label node
A set of Label nodes linked to a string of compute and other nodes for processing each type of transaction.
This allows you more flexibility for adding transaction types or changing how a transaction works without requiring the additional administrative overhead of more queues and message flows.
But if the transactions are fairly different from each other - different data sources, different error handling, etc - you're probably better off using multiple queues. |
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| LH33 |
| Posted: Thu May 22, 2003 1:24 pm Post subject: |
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Master
Joined: 21 Nov 2002
Posts: 200
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Thanks for the information!
Can you direct me to where I can find documentation on Label Nodes. I looked in the Websphere programming guide and couldn't find anything on them
Thanks! |
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| kirani |
| Posted: Thu May 22, 2003 3:33 pm Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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Take a look at Using Control Center manual or the Control Center online help.
_________________
Kiran
IBM Cert. Solution Designer & System Administrator - WBIMB V5
IBM Cert. Solutions Expert - WMQI
IBM Cert. Specialist - WMQI, MQSeries
IBM Cert. Developer - MQSeries
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