RE: Aaron Bartell's RPG/Java comparison

["Julio Domingo" <jdomingo@xxxxxxxxxxx>]

        I Completely agree with this analysis.  RPG is not a REPORT PROGRAM
GENERATOR, that is what it was in the 60s.  If you are not aware of this by
now you have a lot to learn.  I DO TO, learning JAVA.
        Julio

-----Original Message-----
From: owner-java400-l@midrange.com
[mailto:owner-java400-l@midrange.com]On Behalf Of Joe Pluta
Sent: Tuesday, February 13, 2001 10:54 PM
To: JAVA400-L@midrange.com
Subject: RE: Aaron Bartell's RPG/Java comparison


RPG's biggest benefit, in my opinion, is its designed interaction with the
database.  RPG's native database access is far more powerful than SQL, and
far more efficient for transaction processing.  While SQL can do wonders in
querying data, it has some severe limitations.  At least at this point in
time, I can write a database server far more efficiently in RPG than I can
in SQL.

This is especially true in environments where processing is controlled by
flags or switches in the database, which is the standard for most of our
business applications today.  Until business rules can be easily formulated
in terms of inherited and overridden attributes, the navigational database
access of RPG is much more efficient than any object-based design.

On the other hand, presentation of data is now, in my mind, purely the
province of object-oriented programming.  The ability to design
self-modifying widgets which change their appearance programmatically makes
object-oriented techniques simply indispensible in today's worked of
ever-changing UI requirements.

So, to me, the best of both worlds is (as I've probably said a thousand
times <grin>) a Java-based UI coupled with message-based RPG database
servers.  All business logic is encapsulated in RPG on the AS/400, with
communication via the messaging technique of your choice (I personally
prefer data queues) to a servlet, which can then communicate however it
needs to with the outside world.  For high-bandwidth, highly graphical
applications, I prefer a Swing-based UI communicating again via messages to
those same servers on the AS/400.

And that's my story, and I'm stickin' to it...

> -----Original Message-----
> From: owner-java400-l@midrange.com
> [mailto:owner-java400-l@midrange.com]On Behalf Of James H. H. Lampert
> Sent: Tuesday, February 13, 2001 8:36 PM
> To: JAVA400-L@midrange.com
> Subject: Re: Aaron Bartell's RPG/Java comparison
>
>
> Fellow Programmers:
>
> The only advantages I see in RPG are (1) its ability to "ride around an
> entire file on its logic cycle" (pun intended), and (2) ease of issuing
> external calls where the name is not known at compile time.
>
> Other than that, I can think of quite a few things other than "report
> program generator" for the letters RPG to stand for, none of them
> complimentary.
>
> --
> James H. H. Lampert
> Professional Dilettante
> http://www.hb.quik.com/jamesl
> Have you visited http://www.thehungersite.com today?
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