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MQSeries.net Forum Index » IBM MQ Java / JMS » considerations for Java to non-Java communication?

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eddie
PostPosted: Mon Jun 03, 2002 7:50 am    Post subject: considerations for Java to non-Java communication? Reply with quote

Novice

Joined: 03 Jun 2002
Posts: 13
Location: Philadelphia
Hi,

I'm new to MQSeries. I'm a java programmer developing on a sun solaris box. I need to write an application that will communicate with a program run on an AS400 machine (implementation language undecided, but not Java).

I have succesfully written test programs in Java to send and receive messages using the writeUTF() and readUTF() methods respectively.

I'm looking for any pointers regarding how to handle the communication with a different platform and implementation language.

1) I presume I will be unable to continue using the writeUTF() and readUTF() functions.... is this correct?

2) I read somewhere that it is recommended to use plain character strings for communication across systems (I plan on using XML anyway). Does this mean that I have to agree on a limit to the size of the strings being passed over?

3) Are there any other considerations you think I should keep in mind.

Thanks in advance for your help.

Edward Meyer
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mrlinux
PostPosted: Mon Jun 03, 2002 7:58 am    Post subject: Reply with quote

Grand Master

Joined: 14 Feb 2002
Posts: 1261
Location: Detroit,MI USA
To answer to your questions

1) Yes. There is a field within the mqmd that needs to be set to MQSTR
Also since you are sending to an EBCDIC machine your channels should have the convert parameter set to YES
2) As far as message limit, the default is 4mb for a single message unless you have v5.2 on the AS400 which should support 100mb.
There are provisions provided to segment messages if you need bigger messages.
3) Always use the MQGET with convert on.
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