Environment File ( RE: Objects and Source)

Hey guys, 
        This is a very interesting approach and I would like to read more
about it. Is there a reference book, IBM or other, that I can purchase that
will explain in more detail the philosohpy, approach, and implementation of
such processing.

Sincerely,
Bill Graziano

-----Original Message-----
From: James W. Kilgore [mailto:qappdsn@attglobal.net]
Sent: Thursday, February 03, 2000 6:14 AM
To: RPG400-L@midrange.com
Subject: Re: Objects and Source


Paul,

I concur, we have a file that is mandatory for the application to execute
and we
retrieve it's library name.  Having a manually controlled date area, or
writing a
command that does the library duplication and data area maintenance is just
one
more thing to manage.

Because we are an application provider, (BTW, I get a kick out of the new
buzz
about ASP 'cause we've been doing it since the S/34), we have a CRTUSRENV
(Create
User Environment) which asks for the names of libraries to be used, creates
job
descriptions and job queues to isolate a user community from all others.

The user community created could be "developer".  But the bottom line is
that we
made a design choice to use RTVOBJD to determine where you are instead of
some
other, hopefully, synchronized value.  IMHO, RTVOBJD never lies.

pcunnane@learningco.com wrote:

>
> >> For this to work, there should not be any hard-coded library names
except
> QTEMP.  Each database library should contain a data area with its own
name.
> If a program needs the database library name for some reason, retrieve the
> contents of the data area (which would have the same name in each database
> library) and plug it in. <<
>
>      I like this approach.  One change I would make (because I'm a
paranoid
>      SOB, and I rarely trust the contents of data areas unless absolutely
>      necessary) -- instead of reading the contents of the data area, do a
>      RTVOBJD on it, and check the RTNLIB.  Or use an API.  Or something.
>      otherwise, I could see some genius copying a library and forgetting
to
>      change the data area contents.

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