Re: Subfiles in batch job

[Anton Gombkötö <gombkoetoe@xxxxxxxxxx>]

At 10:41 18.12.00 -0600, you wrote:
>A coworker is converting an interactive RPG program to be used in a batch job.
>To keep the changes as minimal as possible he would like to use the existing
>display file and associated subfile logic, without the screen I/O of 
>course.  He
>is receiving "session or device error" messages when trying to open the 
>display
>file in the batch job.  Is it possible to use a display file in batch?  If so,
>what must be defined in the program and/or display file to make it work?

The answer is YES and NO. A batch job can't have screen I/O himself.
You CAN do a OVRDSPF DEV(somedevice) where "somedevice" has to be a display 
with sign-on screen which can be occupied. Whenever the job runs it must 
have access to this device (so nobody may use it then).

This is more than ugly and a 100% candidate for a murphy attack and should 
never ever reach a "production" state.

The solution should be to separate the I/O from the checking/processing.

Maybe you (or the co-worker :-) write a program in the near future that 
accepts input from e.g. a browser. Then you'll be happy to have to write 
the front-ends only.



Mit freundlichen Grüssen / best regards

Anton Gombkötö

Avenum Technologie GmbH
Wien - Mattsee - Stuttgart
e-mail Office   :       mailto:Anton.Gombkoetoe@avenum.com
Homepage        :       http://www.avenum.com

Lest das Redbook / read the redbook "Who knew you could do that with RPG?":
http://www.redbooks.ibm.com/abstracts/sg245402.html

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