RE: EJB versus RPG/COBOL

["Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx>]

> From: Ivan Hurtado
> 
> So overall what I think I'm hearing is...
> that aside from personal preferences as a developer,
> and the cross-platform issue, developing a server-side
> app (to run on a single as400 server) using mainly
> Servlets/JSP's for the web interface and coding most
> of my Business Logic in RPG will not only work well,
> but it will in fact produce the faster performing
> application (which is the real key here)... correct?

I think that, if I understand your business requirements and
environment, you are definitely going to be better off with a mixed
language development effort.

1. Single iSeries machine
2. Business logic already defined and coded in RPG
3. RPG skills in house

WebSphere is probably the way to go, although by writing server-agnostic
code you can conceivably use Tomcat.  Your servlet framework will depend
on the sophistication of your Java programmers and what they are used
to.  As I said, there are a lot of ways to go here, but as long as you
stick to a highly decoupled JSP Model II interface you'll have great
performance.

You first architectural challenge will be deciding which tools you will
use for UI development.  Today the "standard" is Struts, but that's by
no means a given.  There are lots of other frameworks out there.  Or, if
you want a more flexible environment, you might roll your own.  It's
entirely up to you.

Joe