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Message
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| crayon_coco |
 Posted: Mon Mar 01, 2004 12:43 am Post subject: check message availabilty before get |
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Apprentice
Joined: 08 Oct 2003
Posts: 33
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| can i check whether a message availability from the queue before getting it? |
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| Galichet |
| Posted: Mon Mar 01, 2004 3:21 am Post subject: |
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Acolyte
Joined: 26 Jun 2001
Posts: 69
Location: Paris - France
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Hi,
No you cannot do that ...
Two possibilities :
1) You have sent a request and you are waiting for the reply, then you can use wait interval option when getting your message.
2) A message is sent by someone, then you can use trigger. The message will be processed when it arrives in the Queue.
Eric.
_________________
Eric Galichet
SMABTP
France |
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| crossland |
| Posted: Mon Mar 01, 2004 4:24 am Post subject: |
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Master
Joined: 26 Jun 2001
Posts: 248
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| vmcgloin |
| Posted: Mon Mar 01, 2004 5:06 am Post subject: |
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Knight
Joined: 04 Apr 2002
Posts: 560
Location: Scotland
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| Or you could do a non-destructive GET (with BROWSE) depending on what you want to achieve. |
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| chaian |
| Posted: Mon Mar 01, 2004 9:16 am Post subject: availability vs exception |
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Novice
Joined: 30 Sep 2003
Posts: 14
Location: Italy
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| The problem is about managing exceptions thrown by NO_MSG_AVAILABLE error?? |
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| clindsey |
| Posted: Mon Mar 01, 2004 10:12 am Post subject: |
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Knight
Joined: 12 Jul 2002
Posts: 586
Location: Dallas, Tx
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You can ignore the message by catching it and doing nothing ....
| Code: |
catch (MQException ex)
{
if (ex.reasonCode == MQException.MQRC_NO_MSG_AVAILABLE) { }
else
{
System.out.println("MQ error: Completion code " +
ex.completionCode + " Reason code " + ex.reasonCode);
}
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Also put this line in one of you init methods to prevent MQ from reporting the 2033.
| Code: |
MQEnvironment.disableTracing ();
MQException.log = null;
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Charlie |
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