From: Bill Kelly <billk@...>
Date: 2009-03-06T07:36:50+09:00
Subject: Re: JRuby on Java ME


From: "Charles Oliver Nutter" <charles.nutter@sun.com>
>
> It's essentially JRuby 1.2 forked and stripped of libraries and code 
> that aren't supported in CDC. My intention with this is to get it 
> running with a base set of Ruby classes but with Java integration still 
> functional. That will allow most basic Ruby scripts to work while 
> providing access to the rest of the Java APIs for bits I had to rip out.
> 
> It's only running interpreted right now, just like the Android version 
> of JRuby, but as in that case I expect most people would want to 
> precompile Ruby code and ship it all as one unit.
> 
> I think there are many other possible ways we could repurpose JRuby like 
> this; it really only took me a couple days of trimming to get this far. 
> Android will take far less time, and other "mini ruby" profiles might be 
> possible for other platforms as well.

This idea of a stripped-down JRuby running precompiled Ruby code,
still able to access Java APIs sounds ideal for applets.

Do you think it would be a lot of work to target one of these "mini rubys"
for applets?

This gentleman currently has an OpenGL / JRuby applet proof of
concept -- but has he points out, the complete JRuby jar is large
and implies a lengthy download:

http://sikanrong.com/blog/jruby_applet__opengl_running_from_ruby_in_an_applet

I think it would be awesome to have a compact JRuby runtime for
use in applets.  I don't see requiring the ruby code to be precompiled
to be a problem at all.  (Perhaps even a benefit.)


Regards,

Bill