Re: No need for CL/RPG Pair? (use of QCMDEXC, with MONMSG capability )

The MONITOR operation sets up an event handler for a monitored group of
statements. This event handler works similar to a MONMSG command in CL. It
establishes a block of code (group of RPG statements) that are run when an error
occurs within the monitored group.

To set up a monitored group, you type the MONITOR operation code, then follow it
with the statements for which the monitoring applies. Then, after the final
statement in the monitor group, type the ON-ERROR operation with the RPG Status
Code error ID in Factor 2.

With ON-ERROR - Set Up Event Monitor, you can specify one or more status codes
with the ON-ERROR operation. This is similar to using a MONMSG command in CL
with multiple message IDs specified. As always in RPG IV, you separate multiple
status code with a colon.

There are three identifiers that you can use to create a more generic handler.
In place of a specific status code, specify *PROGRAM to indicate that any
program status code (i.e., those in the range of 1000 to 9999) are monitored, or
*FILE to indicate that any file-related status code (i.e., those in the range of
100 to 999) are monitored. Optionally, you can specify *ALL for the status code
that, obviously, monitors for any status code to occur.

For example:
0010 C         MONITOR
0020 C         EXFMT          EditCust
0030 C         if        CustNo > 0
0040 C         Write          CustMast
0050 C               endif
0060 C         ON-ERROR  01021
0070 C         CallP          DupKeyDetected
0080 C         ON-ERROR  *FILE
0090 C         CallP          DupKeyDetected
0100 C         ENDMON

Hope that helps,
Peter Vidal
Pall Aeropower Corp.
SR Programmer Analyst
WWW.Pall.com

"A good player makes himself look good; a great player makes the team look
good."
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