RE: EJB versus RPG/COBOL

Well said Joe.

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Joe Pluta
Sent: Thursday, March 11, 2004 9:06 PM
To: 'Java Programming on and around the iSeries / AS400'
Subject: RE: EJB versus RPG/COBOL

> From: Dieter Bender
> 
> The whole world outside the rpg ghetto would be LOFLOL if they would
read
> the theories about application design by mixing up rpg and java and
the
> examples for great performance in the subsecond region per
transaction,
> doing nothing.

The "rpg ghetto"?  Wow.  You might want to get that chip off your
shoulder, Dieter.  This is, after all, an iSeries based list.

As to performance, the IBM midrange has been supplying subsecond
response time for hundreds or thousands of users per machine for decades
now.  The green-screen interface has been prevalent specifically because
of that.  In fact, it wasn't until the arrival of Windows that it became
normal to wait for a screen to appear.

And it required the bloated overkill of EJBs to make multiple-second
response time for a simple inquiry panel the norm.  On the other hand,
my clients get subsecond response time using RPG and Java on REAL
business applications.

And since the point evidently wasn't clear amongst all that LOFLOL, my
example program was showing that the Java->RPG call interface takes two
milliseconds on a tiny little Model 270.  Now, since RPG is anywhere
from 10 to 100 times faster than Java in typical database transactions,
that means that Java/RPG architecture will handily outperform EJBs.

If you want to do some real comparisons of performance, I'm willing to
discuss it.  But if you just want to take potshots at RPG, I advise you
to find another list.

Joe

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