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| rfhutil |
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| paustin_ours |
 Posted: Mon Nov 21, 2005 2:54 pm Post subject: rfhutil |
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Yatiri
Joined: 19 May 2004
Posts: 667
Location: columbus,oh
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anyone used rfhutil to register subscriptions? where do i specify the durability of the subscription?
can anyone throw more light on content-filtering?
in my esql i specified a psc filter to be InputRoot.MQMD.Encoding = 546
on my toolkit under content filter, it is appearing as 'TRUE'
i thought the whole exression would appear. |
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| jsware |
| Posted: Wed Nov 23, 2005 5:49 am Post subject: |
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Chevalier
Joined: 17 May 2001
Posts: 455
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I have used rfhutil to subscribe to topics. I did this for a "static pub/sub" environment where I wanted to subscribe on behalf of applications and they just receive copies of messages of their own queue. I did not use content filtering for this.
If by "durable" subscription, you mean JMS durable then AFAIK using rfhutil in this manner can only create durable subscriptions. MQ doesn't have the concept of durable and non-durable subscriptions, there are just subscription.
When using JMS non-durable subscriptions, MQ JMS subscribes when a non-durable subscription is made and (I guess) automatically unsubscribes when the connection is terminated by the application. IBM may have also got this to unsubscribe when the application crashes as they could setup shutdown hooks and all sorts of wizzy stuff behind the scenes (though I would doubt this would happen if you did a kill -9 against the application).
From an MQ point of view, there's no difference between durable & non-durable. A subscription is made and remains in place until an unsub request for that subscription point is received, regardless of whether the client has disconnected.
HTH
_________________
Regards
John
The pain of low quaility far outlasts the joy of low price. |
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| paustin_ours |
| Posted: Wed Nov 23, 2005 8:25 am Post subject: |
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Yatiri
Joined: 19 May 2004
Posts: 667
Location: columbus,oh
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so i cant use rfhutil to be my jms subscriber? it has a jms tab in it  |
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| jsware |
| Posted: Thu Nov 24, 2005 5:03 am Post subject: |
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Chevalier
Joined: 17 May 2001
Posts: 455
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I'm not 100% sure but I think the JMS tab allows you to put a jms folder into the RFH2 header.
You could use rfhutil as your "JMS" subscriber, but then your consuming application would then use just a queue receiver object, not a topic receiver object to receive message. The fact that the messages are publications should not have any adverse effect.
This is what we do for some applications where the publishers and subscribers are "static" in that there are always the same receivers running all the time rather than "dynamic" in that a consumer only want messages when they are running (e.g. a stock ticket client for example).
_________________
Regards
John
The pain of low quaility far outlasts the joy of low price. |
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