RE: ILE philosophy

["Johnson, Duane" <djohnson@xxxxxxxxxxxxx>]

  I am a definite advocate of the "one module - one service program" school
of thought.  As a matter of fact, I take it one step farther.  I have one
binding directory for each program.  The binding directory has the same name
as the program.  Since I use PDM for the compiles, I have created a
user-defined option that does the Create Program function and expects to
find the binding directory.  It helps to make life simple.  Also, listing
only those service programs that I'm going to be using in my program, saves
on allocated space when the service program is opened.
  Oh, one other thing.  EVERY module that I write is wrapped in a service
program.  So, when one is changed,  NO recompiles are necessary for any
program.

Duane

> -----Original Message-----
> From: Buck Calabro [SMTP:Buck.Calabro@commsoft.net]
> Sent: Friday, September 20, 2002 9:23 AM
> To:   rpg400-l@midrange.com
> Subject:      RE: ILE philosophy
>
> >In my mind, I imagine ILE to be a four tiered hierarchy:
> >
> >Binding Directory (one or many) has
> >         Service Program (one or many) has
> >                 Module (one or many) has
> >                         Function (one or many)
> >
> >I realize that more arrangements can be made than
> >this, but this seems principally how I can see it working.
>
> Your description is fine.  Bear in mind that the run time requirements
> should drive the service program activation group attribute.
>
> >Right now, my biggest issue with the whole deal
> >comes down to managing the service programs.
>
> I want to clearly state that the following is strictly my own opinion, and
> may not represent best practise.  If you need more than 5 or 6 service
> programs I'd be surprised.  In a very large application you might make it
> to
> a dozen or so.
>
> >A 'make' utility might go a long way towards
> >making the system work efficiently.
>
> I haven't looked at it in ages, but there is a MAKE tool in IBM's
> QUSRTOOL.
> It requires C, but if you're on V5 you are entitled to a no extra charge C
> license.
>   --buck
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