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JRuby Notes
Notes about using JRuby for the first time.
I've got a Rails 3.0.7 app up on Windows and am trying to get it
to work with JRuby, so it actually performs.
Here are the steps:
1. download JRuby from JRuby.org > Downloads
http://jruby.org.s3.amazonaws.com/downloads/1.6.1/jruby-src-1.6.1.zip
1. extract to c:\jruby-1.6.1
note:  the \bin directory should be located directly under, ie: c:\jruby-1.6.1\bin
# add c:\jruby-1.6.1\bin to the Windows PATH environment variable
note: you should be able to get a version from the command line,
using jruby -v
1. open a command prompt and cd to your Rails app
ie: c:\RI\apps\Rails-Demo-App
1. modify the Gemfile (under the directory above).  add the following:
gem 'activerecord-jdbcmssql-adapter'
gem 'activerecord-jdbc-adapter'
1. from the command prompt:  jruby -S gem install bundle
1. again.  jruby -S bundle install
note: make sure the Gemfile.lock is deleted (or you may get errors)
to install the gems specified in the Gemfile
this should install the gems above
my Gemfile also included
gem 'rails', '~>3.0.4' # framework
so... Rails 3.0.7 (most current) was installed as well

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