From: "Mauricio Fernández" <batsman.geo@...>
Date: 2003-08-14T00:36:23+09:00
Subject: Re: Java/Ruby communication

On Thu, Aug 14, 2003 at 12:23:11AM +0900, Nigel Gilbert wrote:
> I am planning to write a Java program and and a Ruby program and have 
> them intercommunicate, with a bidirectional flow of fairly small 
> amounts of data from one to to the other and back.  I know that I could 
> achieve this by running the ruby program in JRuby, but it would not run 
> fast enough (a crude benchmark implies that JRuby executes Ruby about 
> an order of magnitude slower than I would get using Ruby itself).
> 
> The communication could, I suppose, be done with pipes or TCP or even 
> by reading and writing files.  Does anyone have experience of doing 
> this, and tips or code snippets they could share?

[shameless plug]

if you can afford to wait for some time you could use rjni, which
provides transparent, seamless Java/Ruby interaction via JNI. It allows
you to instantiate Java classes from Ruby, call Java methods, implement
Java interfaces with Ruby objects, etc...

I am currently re-implementing several parts of rjni in C for
performance reasons. I cannot give any guarantee whatsoever on the
release date (the fact that I've had no connectivity for nearly 3 weeks
hasn't helped either).

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