If you need commitment control in a queuing process, upgrade to MQ Series. Then you can use the
trigger buffer header to determine whether or not to use Syncpoint (MQ terminology for commitment
control).
How does MQ Series deal with this? When the message is written to the queue under Syncpoint control,
it is not available to be read or transmitted until it is committed. A rollback will remove the
message from the queue.
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Lim Hock-Chai
Sent: Monday, June 09, 2008 5:14 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Trigger programme without a trigger.
Should you then always create trigger that do nothing but writing input
buffer to a different file and create a secondary process to process
data in this file? If not, what happen if sometime down the road a new
application is created to update/add data to this file under commitment
control due to new business requirement? Again, I'm NOT against using
trigger. I just know that decision on how to handle commitment control
vs. speed is not an easy decision.
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Monday, June 09, 2008 3:31 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Trigger programme without a trigger.
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Lim Hock-Chai
Sent: Monday, June 09, 2008 10:09 AM
To: RPG programming on the AS400 / iSeries
Subject: RE: Trigger programme without a trigger.
Below are some not so traditional-RPG-programmer friendly things about
trigger (They are not problem, just stuffs that traditional RPG
programmer are not familiar with):
1) Commitment control issue. Programmer that creates trigger program
tends to not consider commitment control. If the file is under
commitment control and trigger is not, roll back will not rollback
what trigger has done. Well, depending on what the trigger is doing,
this might not be an easy fix.
Our trigger programs check to see if the action happened with or without
trigger control and open and files they are writing too with or without
commitment control as required.
Charles Wilt
--
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307
wiltc@xxxxxxxxxx
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