RE: Activation Groups, external sub procedures, and OVRDBF

Hi Aaron,

This is an oldie, but goodie.... :)  Your external procedure adds to the
CALLLVL at which the override is applied.  As soon as you exit your proc,
the override is removed.  You can use OVRSCOPE(*JOB) to ensure that the
override will "stick".  This may be a little overkill, but it eliminates
that particular symptom.......

Eric DeLong
Sally Beauty Company
MIS-Project Manager (BSG)
940-898-7863 or ext. 1863



-----Original Message-----
From: Bartell, Aaron L. (TC) [mailto:ALBartell@taylorcorp.com]
Sent: Friday, January 17, 2003 10:13 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
_______________________________________________
This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list
To post a message email: RPG400-L@midrange.com
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo.cgi/rpg400-l
or email: RPG400-L-request@midrange.com
Before posting, please take a moment to review the archives
at http://archive.midrange.com/rpg400-l.