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| Publish/subscribe using Selector in WebSphere MQ only |
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| Cinabrok |
 Posted: Fri Mar 29, 2013 7:38 am Post subject: Publish/subscribe using Selector in WebSphere MQ only |
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Newbie
Joined: 29 Mar 2013
Posts: 2
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Hi all,
During my studies, I encountered a question I couldn’t find an answer to, neither in the docs nor anywhere else in the web.
While working with subscriptions, one can use two types of message filtering:
1) Publish/subscribe with content-based filtering using Message Broker
2) Publish/subscribe using Selector in WebSphere MQ only
The first one is clear. Regarding the second one,
1) Can we filter the message using MQRFH2 header, especially the usr field (not just MQMD header) with execution group having content-based filtering disabled?
2) How else, in addition to MQRFH2.usr, can we store message parameters that we could utilize for filtering without using a Broker (with execution group having content-based filtering disabled)?
I’m talking about MQ v7. |
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| exerk |
| Posted: Fri Mar 29, 2013 8:17 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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I think you'll find that message properties have replaced MQRFH2...depending on your WMQ level of course.
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| Cinabrok |
| Posted: Sun Mar 31, 2013 9:59 pm Post subject: |
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Newbie
Joined: 29 Mar 2013
Posts: 2
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| Alright, but the question is still here: can I filter using MQRFH2 header fields without enabling execution group’s content-based filtering — that is, by means of only MQ? |
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| bruce2359 |
| Posted: Mon Apr 01, 2013 4:40 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Yes. WMQ v7 introduced MQI-level support for SQL92 selectors for pub/sub- or JMS-created messages.
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ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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