That is still not going to get you the current version. The OS stores the
virtual address of the program for the next time if gets called. If you move
the program it will go to where you moved it to or if you deleted it it will
error out.

Solutions:

1. If you store the name of the program and library in a character field it
will not store the virtual address.
2. Use the trigger mediator. When you reload, it reloads everything and it
get the correct version of the service program so you don't deal with all
these issues.


On Fri, Jun 17, 2011 at 10:58 AM, Morgan, Paul <Paul.Morgan@xxxxxxxxxxx>wrote:

Jeff,

To answer your question:

1) Make sure you are making a dynamic call to the program
2) Make sure the program shuts down after every call so it's no longer in
the call stack of the process

Then when you call the program again in the same process you will call the
current version.

Have you looked at a prestart job entry in that subsystem for your process
or processes that receives the data queue entry? Those can get
automatically restarted by the subsystem if they ever end.

Paul Morgan

Principal Programmer Analyst
IT Supply Chain/Replenishment


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:
midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jeff Young
Sent: Friday, June 17, 2011 12:30 PM
To: Midrange Systems Technical Discussion
Subject: Re: Trigger Processing Question

Paul,
I still need to know if the program that receives the data queue entry is
active.
This will be a program running in a NOMAX jobs subsystem, but needs to be
library list sensitive.
My current logic is to call a program with the data needed for the data
queue
and test if the processing job for the environment is active.
I do this using the List Active Jobs API and if the job is not active, I
submit
it.

My question is what is the best way to call this program from the trigger
to
ensure that I will always get the current version?

Thanks,,

Jeff Young
Sr. Programmer Analyst






________________________________
From: "Morgan, Paul" <Paul.Morgan@xxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Sent: Fri, June 17, 2011 11:49:05 AM
Subject: RE: Trigger Processing Question

Jeff,

Why must the trigger program check if the processing program is active?
That
shouldn't be done in the process that fires the trigger. Do that with some
sort
of scheduled job to occasionally check if the process monitoring the data
queue
is active.

Why must the trigger determine if the data queue exists? I'd just have the
trigger program push an entry into the data queue. Monitor or trap that
push
into the data queue for an error. If you trap a 'data queue doesn't exist'
error
then do something about it.

Paul Morgan

Principal Programmer Analyst
IT Supply Chain/Replenishment


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:
midrange-l-bounces@xxxxxxxxxxxx]
On Behalf Of Jeff Young
Sent: Friday, June 17, 2011 11:34 AM
To: Midrange Systems Technical Discussion
Subject: Re: Trigger Processing Question

Hi Paul,
That is basicaly what I am doing, but I need to determine if the data queue
exists and if the processing program is active.
I have a program that will do that, but what is the best way for the
trigger to
call it so that if needed I can make adjustments to it without having to
worry about what version the trigger is actually calling.

Thanks,

Jeff Young
Sr. Programmer Analyst






________________________________
From: "Morgan, Paul" <Paul.Morgan@xxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Sent: Fri, June 17, 2011 10:43:08 AM
Subject: RE: Trigger Processing Question

Jeff,

Fire off an entry into a data queue from the trigger program. Have another
process already running which is monitoring the queue and processes the
entry to

call the other program to do some other processing. It's possible for you
to
shut down the process and restart it to make changes to the other program.
As
long as the data queue is available the trigger program can continue to
fire
entries into the queue.

I wouldn't do any checking for a data queue or process in the trigger
program.
Neither would I submit a job or call the program from the trigger program.
You
want to reduce as much as possible any possibility of an error or delay
with the

trigger program.

If you want to make changes to the trigger program you should use the
Trigger
Mediator pattern.

Paul Morgan

Principal Programmer Analyst
IT Supply Chain/Replenishment


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:
midrange-l-bounces@xxxxxxxxxxxx]
On Behalf Of Jeff Young
Sent: Friday, June 17, 2011 10:27 AM
To: midrange-l@xxxxxxxxxxxx
Subject: Trigger Processing Question

V6R1
I have a trigger program that is going to be called thousands of times
during
the day.
This program will test some fields in the old and new record and then fire
off a


program to do some other processing if they are changed.
At this time this is the only trigger being used, so the Trigger Mediator
program is overkill.
I want to be able to make changes to the program doing the proessing if
needed.
I will initialy call a program to test if a data queue exits and if the
processing job is already active and waiting for a message.
If not, the program will create the data queue and then submit the
processing.

What is the best method to call this program?
Dynamic call from the Trigger?
Submit job to batch ?
Some other method?

All suggestions will be appreciated.

Thanks,

Jeff Young
Sr. Programmer Analyst
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