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dynamic attribute in cics program

 
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jctgf
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PostPosted: Thu Feb 05, 2009 4:01 pm    Post subject: dynamic attribute in cics program
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hi there,
I'd like to know if it's possible to dynamically change the size of a map field in a COBOL cics program.
thanks.
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Robert Sample

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Location: East Dubuque, Illinois, USA

PostPosted: Thu Feb 05, 2009 6:08 pm    Post subject:
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You code up a map.
You compile the map to generate a copy book and load module.
You copy the copy book into your program to use in sending and receiving the map.
You compile the program to create a load module that is used in CICS.

Dynamically changing a map field size would require changing the copy book, map load module, and program load module on the fly. CICS production systems aren't usually allowed to wait for a recompile process to finish before displaying the data. So there are good reasons why what you're asking for cannot be done.

I have seen some very advanced programming that took the 3270 data stream and manipulated it to achieve the result you want. However, the code was proprietary and I never had a chance to study it. So I know it can be done but it would take me a few months of studying and testing 3270 data streams before I could do it.
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jctgf
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PostPosted: Fri Feb 06, 2009 4:23 am    Post subject:
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thanks a lot.
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