Demo application: Cheri::JRuby::Explorer (CJX)

CJX is a Swing application written entirely in (J)Ruby using the Cheri::Swing and Cheri::Html builders. It enables you to easily browse classes/modules, configuration/environment settings, and, if ObjectSpace is enabled, any objects in a JRuby instance. A small DRb server component can be installed in other JRuby instances, enabling you to browse them as well.

The CJX client requires JRuby 1.0.3 or later. To run it:

  require 'rubygems'
  require 'cheri/jruby/explorer'
Alternatively, you can load and run it in one step:
  require 'rubygems'
  require 'cheri/cjx'
This will take several seconds to load and start (performance is an area of ongoing improvement). Once it loads, it should be fairly clear what to do.

Performance issues noted in earlier versions have been largely overcome as of Cheri version 0.5.0.

To install the CJX DRb server component in an instance (assuming the Cheri gem is installed):

  require 'rubygems'
  require 'cheri/explorer'
  Cheri::Explorer.start nnnn #=> where nnnn is a port
Note that for the server, you require 'cheri/explorer', not 'cheri/jruby/explorer'.

Also note that the above actually does work in C/MRI Ruby, but due to the threading implementation (in C/MRI Ruby), requests to the server then hang in CJX, unless you join the thread:

  # C/MRI Ruby only
After that, you can browse just fine in CJX, but you can't do anything more in the C-Ruby instance, so it's kind of pointless.
Copyright © 2007-2009 Bill Dortch