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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Unique Transaction Number

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harish_td
PostPosted: Mon Aug 24, 2009 5:59 pm    Post subject: Reply with quote

Master

Joined: 13 Feb 2006
Posts: 236
UUIDASCHAR generates a 36 character string , you could trim the last 5 characters and hope as hell that this function does not generate a duplicate ending 5 characters in one day.

Try to fiddle around with the rand function in java and invoke a JCN to get this value. Since rand generates numeric only values you can google around for links like this
http://stackoverflow.com/questions/41107/how-to-generate-a-random-alpha-numeric-string-in-java

All other scalability issues with such a small seed still remain.
Just my 0.02$[/b]
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latitude
PostPosted: Tue Aug 25, 2009 1:53 am    Post subject: Reply with quote

Apprentice

Joined: 17 Aug 2009
Posts: 36
jbanoop wrote:
Just trying to understand option #3, the message in the queue would always contain the latest transaction # is it ? And every time you consume, you create a new message with the incremented value of the counter and place it on the queue again ?



Create a another broker flow or external program which will run every x number of minutes and creates x number of messages with a unique transaction number and place them in a queue.

The other broker flows which requires a transaction number could use a MQGet to consume a transaction number.
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