From: Peter Booth <pbooth@...>
Date: 2009-03-06T11:19:39+09:00
Subject: Re: JRuby on Java ME

Bill,

What would be the "sweet spot" for applets?

I acknowledge my prejudice, reluctantly accepting that memories of  
ancient rants about "craplets" are not just a bad dream.

Peter Booth
(917) 445 5663 peter_booth@mac.com

On Mar 5, 2009, at 5:36 PM, "Bill Kelly" <billk@cts.com> wrote:

>
> 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
>
>
>