RE: Activation Groups, external sub procedures, and OVRDBF

["Mike Haston ** Data" <MJH@xxxxxxx>]

I'm wondering if when you call the procedure to do the OVRDBF if that is one 
level deeper and setting an override there.  Then you step backward into your 
Program 1 and lose the override?  Did I word that right?

I'll have to look at an OPNQRYF program I have.  A lot of people on this and 
another forum helped me understand it all when I had a similar problem.


-----Original Message-----
From: Bartell, Aaron L. (TC) [mailto:ALBartell@taylorcorp.com]
Sent: Friday, January 17, 2003 11:13 AM
To: 'RPG400-L@midrange.com'
Subject: Activation Groups, external sub procedures, and OVRDBF


I have looked in the archives but am unable to find an example similar to
mine, so here I go. . .

I have a situation where my OVRDBF isn't working and from my point of view I
have all of my ducks in a row.  I have PGM1 doing a CALLP to a sub procedure
named clCmdExec which executes the OVRDBF command I send into it.  For
example:

PGM1...
     C                   CallP      cLCmdExec('OVRDBF FILE(ORDHDR1)
TOFILE(PRODLIB/ORDHDR1)')


cLCmdExec (external module that is bound into PGM1) . . .
     P cLCmdExec...
     P                 B                   Export
     D cLCmdExec...
     D                 PI              N
     D  pCmd                       1024    Value Varying
     D  pLength                      15  5 Value Options(*NoPass)
     C                   If         %Parms = 1
     C                   Eval       pLength = %Len(%Trim(pCmd))
     C                   EndIf

     C                   Call      'QCMDEXC'                            99
     C                   Parm                    pCmd
     C                   Parm                    pLength

     C                   Return    *In99
     P                 E

I created PGM1 with DFTACTGRP(*NO) ACTGRP(*CALLER).
I created the service pgm cLCmdExec is in with ACTGRP(*CALLER).

The above doesn't override the file; when I open ORDHDR1 it grabs the first
ORDHDR1 in the library list which is in TESTLIB.  

The override _does_ work if I have the following in PGM1 instead of using a
sub procedure.

PGM1...
     C                   Eval      pCmd = 'OVRDBF FILE(ORDHDR1)
TOFILE(PRODLIB/ORDHDR1)'                             
     C                   Call      'QCMDEXC'                            99
     C                   Parm                    pCmd
     C                   Parm                    pLength

Could someone tell me how I might be compiling my programs wrong? or how I
might be using the OVRDBF wrong?  I have tried changing the override scope
on OVRDBF, but that didn't fix my problem.

Aaron Bartell
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