RE: RAWT processing

Hi,

I understand your motivation to use Java and take any
oportunity that may present itself but this seems like
a huge complication for a trivial issue. I assume the
blank screen will be a 5250 screen. If so a more
appropriate solution may be to submit the restore to a
batch queue (Less impact on interactive jobs) and wait
for a reply via maybe a message queue or data queue.

In my opinion (based on what I've readin the past of
IBM's recommendations) RAWT is really only provided to
satisfy SUN's portability requirements and to use in
the case of say, configuring Java stuff on the AS/400
where performance is not an issue.

Because of the way Java works on the AS/400 you should
look for some long-running jobs in order to use Java.
Starting a new Java process is expensive, therfore
ideally you start a Java job once and clients will
request services over a period of time. For example
you may have a Java process(es) running on PC's
comminicating with a Java process (Multiple Threads)
on a server (AS400) communicating via RMI.


What I want to say (poorly?) is Java is not an equal
substitute for existing RPG programs.

Mike
--- Rob Persing <rob.persing@courts.state.pa.us>
wrote: > Joe, you have the correct idea of what I
would like
> to attempt in that I
> would like to initiate a GUI on the client by
> executing a command on the
> AS/400.  I didn't know about RUNRMTCMD and will look
> into exploring this
> option.  Although I have 10 years experince on the
> AS/400, I am new to JAVA
> and what it can bring to the AS/400.  I feel like
> I'm starting all over
> again!  I'll give you an idea of what I'm trying to
> attempt and maybe you
> could let me know if I'm going about it in theright
> way or if it's even
> possible.  I have written a new process that allows
> users to restore
> information from a 3995 optical server from remote
> AS/400 systems using ILE
> RPG.  This process takes anywhere from 2 to 4
> minutes to run.   This is
> where I thought JAVA could play a role.  Instead of
> having the user look at
> a blank screen for 2 to 4 minutes, I thought a JAVA
> GUI called from the
> restore process showing them the status of the
> restore would be nice.  Maybe
> this is bells and whistles, but I thought it would
> give me an opportunity to
> jump into JAVA on the AS/400.  
> 
> > -----Original Message-----
> > From:       Pluta@nexgensoftware.com
> [SMTP:Pluta@nexgensoftware.com]
> > Sent:       Monday, June 12, 2000 10:51 AM
> > To: JAVA400-L@MIDRANGE.COM
> > Subject:    Re: RAWT processing
> > 
> > 
> > Rob, I can't help wondering why you want to use
> AWT rather than a Java
> > application on the client.  Is the idea that you
> want to automatically
> > initiate the GUI on the PC by executing a command
> on the AS/400?  If so,
> > you should be able to use RUNRMTCMD to start an
> application on the PC
> > (RUNRMTCMD just needs an REXEC daemon running on
> your PC - you can get
> > shareware versions of REXEC for testing purposes).
>  RUNRMTCMD only
> > requires
> > the IP address of the client PC, just the same as
> RAWT.  An even more
> > elegant solution would be to use a client/server
> approach, where the
> > client
> > registers itself and then waits on a data queue.
> > 
> > If you'd like to explore either of these options,
> just ask.
> > 
> > Joe Pluta
> > www.java400.net
> > www.plutabrothers.com
> > "Where the AS/400 speaks Java - with an RPG
> accent!"
> > 
> > 
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