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Meeting Notes October 2005

• Opening discussion
• Upcoming Meetings
• Main Topic: JRUBY
• Post-meeting

Lots of people showed up to last night’s meeting. about 5 new people showed up to see Jason Voegele’s JRuby presentation.

The new people were mostly interested in hearing about the Ruby.

Opening discussion

• Agenda for the next 3 meetings (see below)
• RubyConf is sold-out this year.
  Jim is going and will give us an update next month.
• 5 new attendees, expressed interest in learning more about Ruby
• Bill is building a Rails app for work.

Upcoming Meetings

• November 1st. RubyConf 2005 and an OpenSpace exercise

• December 5th. XP version 2.0,
  The Updated practices for Extreme Programming

• January 3rd. Ruby On Rails building web applications www.rubyonrails.com

Main Topic

Jason showed some slide and took lots of questions. JRuby is the way to run Ruby code on a Jave Virtual Machine. It runs on Java 1.4 and Java 5. JRuby is packaged as a jar file.

JRuby features:

• A 1.8.2 compatible Ruby interpreter written in 100% pure Java
• Most built-in Ruby classes provided
• Support for interacting with and defining java classes from within ruby
• Bean Scripting Framework (BSF) support
• Distributed under a tri-license (CPL/GPL/LGPL)

more details at http://jruby.sourceforge.net/

Post Meeting

The post meeting was at the Highland Coffee house. About 10 people attended. Jim explained “Continuations” to us. And we kicked around ideas for using the Command Pattern for an application to do system administration and recovery and retries of system level commands. (Why don’t coffee houses have white boards?)