[wplug] OT - Programming Languages

[hobbit at euthanized.org]

As I said, use RPC or SOAP through JavaScript and there will be no refresh.

----- Original Message -----
From: "J Aaron Farr" <jaaronfarr at yahoo.com>
To: <wplug at wplug.org>
Sent: Friday, August 29, 2003 5:46 PM
Subject: RE: [wplug] OT - Programming Languages


>
> --- Chris <vze2f6h6 at verizon.net> wrote:
> > >
> > > > web-based, and then the client side doesn't matter.  The only
problem is
> > > > that the browser would have to refresh at least every minute to show
the
> > > > updated time for all the tanning beds.
> > >
> > > Why is a browser refresh a problem?  You don't want to tax the server?
> > >
> >
> > I really don't think taxing the server would be a problem.  Unless there
> > were many machines connected to it.  This would be in an intranet
setting.
> > I couldn't image more then about 5 machines total.  I think that biggest
> > problems would be when people are trying to type and lose their data.
Plus
> > it would get a little annoying seeing the page constantly refreshing.
Say
> > it was controlling 10 beds.  That means that the browser would have to
> > refresh about 5 - 10 times per minute.  I guess that's a function of how
> > accurate the display would be.  I think that it would be much cleaner
> > without the refreshing.  If this turns out to be an app that they can
use
> > over the Internet to connect other salons, then that could be a lot of
data
> > refreshing.
> >
> > Thanks for all the help everyone.  I have a lot of research to do.
> >
> > Chris Romano
> >
>
> Several Thoughts:
>
> Refreshing:
>    If you do go web based, you can get by the refresh by having the
refresh
> part in a seperate frame.  Not very elegant if you ask me, but it works.
>
> Language:
>    I'm biased (as is everyone else), but I do a lot Java programming.
There is
> good serial/parallel communication support in Java [1][2] (I've used it),
but
> USB support will be tricky.  There's at least one open source library for
java
> + USB [3], but I believe it only works on Linux.  Official support should
be
> added soon [4], but that doesn't help you now.  There may be commerical
> packages, but I'm not familiar with any.
>    Of course, the advantage with Java is that you can also just add a
small
> interface to the platform specific API using Java Native Interface
(JNI)[5].
> With a little proper coding this should allow you to switch OS's without
too
> much trouble.
>
> If you have any specific java questions for this project, send me an
email.
>
> Good luck.
> jaaron
>
> [1] http://java.sun.com/products/javacomm/
> [2] http://www.rxtx.org/
> [3] http://jusb.sourceforge.net/
> [4] http://www.jcp.org/en/jsr/detail?id=80
> [5] http://java.sun.com/j2se/1.4.2/docs/guide/jni/
>
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