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message queue, from VB.net to as400

Posted on 2012-04-05
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Last Modified: 2012-05-06
HI,
I know that exists a control which permit to connect a message queue in as400 from vb.net.
Someone have some code to show me in order to make this connection functions?
thanks
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Question by:bobdylan75
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Gary Patterson earned 500 total points
ID: 37874181
Is Java an option instead of .NET?  Message queues are easy in Java, since IBM provides a MessageQueue class in the Java Toolbox (or open source JTOpen package):

http://publib.boulder.ibm.com/infocenter/iseries/v7r1m0/index.jsp?topic=%2Frzahh%2Fjavadoc%2Fcom%2Fibm%2Fas400%2Faccess%2FMessageQueue.html

If you have to do it from From .NET, I'd probably opt to create stored procedures to wrap the SNDMSG/RCVMSG commands or the QMHSNDM/QMHRCVM APIs.  Then you can just use the iSeries ADO.NET adapter that comes with Client Access to issue stored procedure calls to your stored procedures.

To send messages, you can always just use remote command support to execute a SNDMSG command.

Receiving is trickier.

I looked in the IBM i Access for Windows Programmer's Toolkit docs, and didn't see any non-Java tools for working with message queues, but I might've missed it - you should look yourself.  It isn't always installed by default, so you may have to locate your Client Access media and install it from there.

Another alternative might be to write a simple little AS/400 message queue monitor program, and run it as an auto-start job - have it watch the message queue you want to monitor, and push message information onto a data queue - it is pretty easy to watch a data queue from VB.

Maybe if you could tell me a bit more about your requirements, I could help with suggesting a solution.

- Gary Patterson
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