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| JMS Selector Bug? |
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| garbagedook |
 Posted: Mon May 15, 2006 8:49 am Post subject: JMS Selector Bug? |
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Novice
Joined: 15 May 2006
Posts: 11
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Hello all,
I have a BytesMessage that I am calling setLongProperty with the current timestamp in milliseconds.
long x = System.currentTimeMillis();
msg.setLongProperty("LASTMODDT", x);
I place this message on a queue.
I use a selector with a value that is LESS than x e.g. LASTMODDT >= 1146501224000
But it always returns me nothing!
Please note, I have the selector working on other properites, i.e. those using String equality. I also have the selector working with JMSTimestamp >=, but for my OWN long property it does not work.
Anyone seen this before? Thank you very much in advance. |
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| jefflowrey |
| Posted: Mon May 15, 2006 12:07 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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JMS selectors have extremely poor performance (in the current MQ JMS Implementation).
You are strongly recommended not to use them for anything other than MsgID and CorrelationID.
What are you trying to accomplish with this selector?
Queues are not databases, also, please don't try to use them that way.
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I am *not* the model of the modern major general. |
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| lohitashwa |
| Posted: Tue May 23, 2006 2:10 am Post subject: |
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Newbie
Joined: 05 May 2005
Posts: 5
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Hi,
I tried a sample program to put a BytesMessage setting the property and fetching the same with Message selectors and it worked fine...
BytesMessage bMsg = session.createBytesMessage();
long x = System.currentTimeMillis();
bMsg.setLongProperty("MYTIME", x);
sender.send(bMsg);
Thread.sleep(1000);
bMsg = null;
QueueReceiver receive = session.createReceiver(que, "MYTIME>=1000");
bMsg = (BytesMessage)receive.receive(5000);
System.out.println("The Msg is " + bMsg);
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When i executed the above code , i got the message since the time millis was greater than 1000. Can you let me know if you are getting any kind of exception. What is the WMQ CSD version you are currently using.
Regards
Lohitashwa T |
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| fjb_saper |
| Posted: Tue May 23, 2006 3:31 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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@garbagedook
Is it possible that your session is transacted and that your are trying to receive the message before having committed the send ?
Remember was transaction settings will superseed whatever transaction settings you put on the session...
Enjoy 
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MQ & Broker admin |
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