Code on github: https://github.com/leonardoborges/railssummit09

1. JRuby in the Enterprise
Leonardo Borges
Sunday, October 4, 2009

2. JRuby in the Enterprise
Leonardo Borges
Sunday, October 4, 2009

3. Who am I?
• Consultant at ThoughtWorks Australia
(former developer at HotelSearch.com)
• Open source contributions
- Rails
- JRuby
- rcov_plugin
- readable_test_names_runner
• Blogger
• www.leonardoborges.com
• First time speaker
JRuby in the Enterprise
Sunday, October 4, 2009

4. Who are you?
JRuby in the Enterprise
Sunday, October 4, 2009

5. Who are you?
• Ruby?
JRuby in the Enterprise
Sunday, October 4, 2009

6. Who are you?
• Ruby?
• Rails?
JRuby in the Enterprise
Sunday, October 4, 2009

7. Who are you?
• Ruby?
• Rails?
• Java?
JRuby in the Enterprise
Sunday, October 4, 2009

8. Who are you?
• Ruby?
• Rails?
• Java?
• JRuby?
JRuby in the Enterprise
Sunday, October 4, 2009

9. Who are you?
• Ruby?
• Rails?
• Java?
• JRuby?
Why are you here?
JRuby in the Enterprise
Sunday, October 4, 2009

10. Why JRuby?
• Better threading support • Leverage the knowledge
• Improved performance of an existing team
• Java integration (with a • Reuse existing logic
vast array of libraries) • Testing
• Active community
• Full Ruby 1.9 support on
the way
JRuby in the Enterprise
Sunday, October 4, 2009

11. ...but before we get dirty
Java integration: Ruby meets swing
JRuby in the Enterprise
Sunday, October 4, 2009

12. JavaRuby meets swing
Integration
frame = javax.swing.JFrame.new("Hello Rails Summit 2009!")
frame.setDefaultCloseOperation(javax.swing.JFrame::EXIT_ON_CLOSE)
frame.setSize(java.awt.Dimension.new(200,200))
label = javax.swing.JLabel.new("JRuby rocks!")
frame.getContentPane.add(label, java.awt.BorderLayout::CENTER)
frame.setVisible(true)
JRuby in the Enterprise
Sunday, October 4, 2009

13. JavaRuby meets swing
Integration
frame = javax.swing.JFrame.new("Hello Rails Summit 2009!")
frame.default_close_operation = javax.swing.JFrame::EXIT_ON_CLOSE
frame.size = java.awt.Dimension.new(200,200)
label = javax.swing.JLabel.new("JRuby rocks!")
frame.content_pane.add(label, java.awt.BorderLayout::CENTER)
frame.visible = true
JRuby in the Enterprise
Sunday, October 4, 2009

14. Case Study
Introducing JTasks
JRuby in the Enterprise
Sunday, October 4, 2009

15. Extending the Case Study
listing tasks with JRuby
JRuby in the Enterprise
Sunday, October 4, 2009

16. What’s next?
JRuby 1.4 RC1 is out...
• 1.8.7 compatible
• Improved 1.9 Compatibility
• Java method selection and Coercion API
• Ruby2Java in the core API
• and more...
JRuby in the Enterprise
Sunday, October 4, 2009

17. Conclusion
JRuby in the Enterprise
Sunday, October 4, 2009

18. Q&A
JRuby in the Enterprise
Sunday, October 4, 2009

19. References
• www.engineyard.com/blog
• www.jruby.org
• www.leonardoborges.com
• github.com/leonardoborges/readable_test_names_runner
Slides / Source code
• http://github.com/leonardoborges/railssummit09
JRuby in the Enterprise
Sunday, October 4, 2009