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JRuby is Awesomea.k.a Pump It Up: Maximizing the Value of an Existing            Investment in Java with Ruby
Me• Charles Oliver Nutter (“headius”)• JRuby Guy• JVM Languages Guy• Ex-Sun Guy• Engine Yard Guy
You• Java developers? • Let’s call ourselves JVM developers now.• Other languages?• Other platforms?
Why JVM?• Inertia• Wealth of libraries• Widely accepted• Momentum is coming back• Awesome VM, best platform
Why Not JVM?• Alternative languages?• Cumbersome standards?• New shiny? Cool factor?• Tooling woes?• Native library/OS fea...
What If?
JRuby• Ruby language on the JVM• Solid, reliable implementation• Production users: finance, gov’t, infrastruct• Integrates ...
Language• Ruby is a beautiful, fun language • A standard by which others are judged• Wealth of books, resources, conferenc...
A Taste of Ruby
Java, of Course• Call Java libraries • ...and decorate them• Impl interfaces, extend classes• Die, CLASSPATH, die!• Fixing...
Java Integration
Tooling• Unit testing: test/unit• Spec/behavior-driven: rspec• Build, automation: rake• Packaging: rubygems
Tooling
Web Development• Full-size apps: Rails• Services, micro apps: Sinatra• Deployment: • Command-line servers like Trinidad • ...
Web Dev
Native Access• Better process, filesystem, IO • Process control • Symlinks, globbing • Easy non-blocking IO• FFI for bindin...
Native Access
Other Targets• Engine Yard AppCloud• Google AppEngine• Amazon Elastic BeanStalk• Android
What Next?• www.jruby.org• Book: “Using JRuby” from Pragmatic• Conferences near your home town • Inexpensive and fun• User...
Thank You!
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TSSJS 2011 - JRuby

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  • Transcript of "TSSJS 2011 - JRuby"

    1. 1. JRuby is Awesomea.k.a Pump It Up: Maximizing the Value of an Existing Investment in Java with Ruby
    2. 2. Me• Charles Oliver Nutter (“headius”)• JRuby Guy• JVM Languages Guy• Ex-Sun Guy• Engine Yard Guy
    3. 3. You• Java developers? • Let’s call ourselves JVM developers now.• Other languages?• Other platforms?
    4. 4. Why JVM?• Inertia• Wealth of libraries• Widely accepted• Momentum is coming back• Awesome VM, best platform
    5. 5. Why Not JVM?• Alternative languages?• Cumbersome standards?• New shiny? Cool factor?• Tooling woes?• Native library/OS features?
    6. 6. What If?
    7. 7. JRuby• Ruby language on the JVM• Solid, reliable implementation• Production users: finance, gov’t, infrastruct• Integrates well with JVM langs, libs• Deploys on Java servers• Large, active community
    8. 8. Language• Ruby is a beautiful, fun language • A standard by which others are judged• Wealth of books, resources, conferences • Healthy, growing community• JRuby brings Ruby to Java and Java to Ruby • Part of the family!
    9. 9. A Taste of Ruby
    10. 10. Java, of Course• Call Java libraries • ...and decorate them• Impl interfaces, extend classes• Die, CLASSPATH, die!• Fixing JDK issues (JDBC unloading...)
    11. 11. Java Integration
    12. 12. Tooling• Unit testing: test/unit• Spec/behavior-driven: rspec• Build, automation: rake• Packaging: rubygems
    13. 13. Tooling
    14. 14. Web Development• Full-size apps: Rails• Services, micro apps: Sinatra• Deployment: • Command-line servers like Trinidad • WAR deployment with Warbler
    15. 15. Web Dev
    16. 16. Native Access• Better process, filesystem, IO • Process control • Symlinks, globbing • Easy non-blocking IO• FFI for binding any native library
    17. 17. Native Access
    18. 18. Other Targets• Engine Yard AppCloud• Google AppEngine• Amazon Elastic BeanStalk• Android
    19. 19. What Next?• www.jruby.org• Book: “Using JRuby” from Pragmatic• Conferences near your home town • Inexpensive and fun• User groups, mailing lists• www.engineyard.com/jruby
    20. 20. Thank You!
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