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  1.  Home
  2. MI400
  3. May 2001

RE: is nmi translator off limits?

  • Subject: RE: is nmi translator off limits?
  • From: Njål Fisketjøn <n.f@xxxxxxx>
  • Date: Fri, 11 May 2001 23:02:32 +0200
  • Importance: Normal
Do you mean that all systems should be static? That all possible parameters of all service program functions
are decided before any programming is done? This is certainly not the case with the applications I know.
We have live and everchanging systems reflecting the changing needs of the companies using them and
their customers.
 
Do you mean that every time a new parameter is needed to a service program function I should invent a new
name (eg. GetListOfCustomers37)?
 
Since we're quite off topic here, maybe we should discuss this in the AS/400 NG? :) It would be interesting to know
if I'm out on my own here...
 
 
-----Original Message-----
From: owner-mi400@midrange.com [mailto:owner-mi400@midrange.com]On Behalf Of Leif Svalgaard
Sent: 11. mai 2001 22:25
To: MI400@midrange.com
Subject: Re: is nmi translator off limits?

what you describe does not scale up to 100s of programs
maintained by dozens of programmers. No matter how smart
you think it is, it's not worth it.
 
----- Original Message -----
Sent: Friday, May 11, 2001 3:16 PM
Subject: RE: is nmi translator off limits?

If I can reuse a function in a service program by adding another parameter, which is (presently) not needed
in any other program, I think it's good from a maintenance point that I don't have to change and recompile
all programs that use the old version of the service program. Isn't this what the version stamping of service
programs are meant for?
 
If I have to make changes to programs using the old parameter list, I can change them to the *CURRENT
*SRVPGM function parameter list at that time. Depending on how the parameters are specified I will or
will not get a compiler error message stating that the call doesn't match the prototype.
 
 
-----Original Message-----
From: owner-mi400@midrange.com [mailto:owner-mi400@midrange.com]On Behalf Of Leif Svalgaard
Sent: 11. mai 2001 21:41
To: MI400@midrange.com
Subject: Re: is nmi translator off limits?

 
----- Original Message -----
Sent: Friday, May 11, 2001 1:29 PM
Subject: RE: is nmi translator off limits?

With a service program I can change the parameter list to an existing function, or let a completely different
function (with a changed parameter list) take over the name of an old function; and still let old programs
using the old function work without modification or recompilation. How would you accomplish this with your
CallM opcode?
 
===> I don't think what you describe is even desirable. what a maintenance nightmare.
 

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