• Subject: Re: Some experience - as400 server side java
  • From: pluta@xxxxxxxxxxxxxxxxxx
  • Date: Wed, 9 Jun 1999 08:01:06 -0500

>Thanks everybody for your kind answers regarding java usage on the
>If i had to sum the posts regarding server side java it will come to:
>1. It is not trivial to interact with legacy code.
>2. You must use jdbc for commit support.
>3. Debug is not easy.
>4. The supporting env. are "on their way".
>What i understand is: if today i have to develop an application with
>client - server architecture where the server side needs to interact
>with legacy system it will be faster and easier to develop the server
>side with COBOL (well structured of course :) ).
>Am i wrong ?

1. Correct

2. No!  You can use the toolbox and use native I/O calls!  The toolbox directly
supports commitment control.  And with my JDB/400 package, you can use methods
like SETLL and READE.

3. Debugging on the AS/400 is not too easy, but you can write your programs on
the client and test them there.  Then you can move your classes up to the

4. We'll see.  I'm reasonable satisfied developing the way I develop today
(VAJava on Win98), although I may move to Linux when VAJava for Linux comes
available.  But until IBM truly merges the JVM with OS/400, Java is going to be

Finally, as to your conclusion, I tend to agree.  My architecture of choice
today is Java client on the workstation talking via data queue to an RPG server
on the AS/400.  However, I would definitely design my client/server interface
with the idea in mind that I will be moving to OOP soon (which means servers
represent objects and messages represent method calls).

Joe "Zappie" Pluta
Where the AS/400 speaks Java with an RPG accent

| This is the JAVA/400 Mailing List!
| To submit a new message, send your mail to JAVA400-L@midrange.com.
| To subscribe to this list send email to JAVA400-L-SUB@midrange.com.
| To unsubscribe from this list send email to JAVA400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com

As an Amazon Associate we earn from qualifying purchases.

This thread ...

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2022 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.