Ruby On Java

Ruby on Java

Luc Castera

http://dambalah.com

[email_address]

JRuby

JSR-223: Scripting for Java

Bean Scripting Framework

Java @ work Ruby @ home Java + Ruby Motivation Solutions

Option 1 Option 2 Option 3

JRuby JRuby is an 100% pure-Java implementation of Ruby Import Mature Java Libraries into Ruby Facilitate Ruby Deployment in Enterprise Threads + Internalization friendly JRuby 1.0 'almost' Ruby 1.8.x compatible JRuby on Rails: active-record-jdbc, goldspike, glassfish-rails)‏ JRuby compiler to Java bytecode -> Performance!

JRuby Example

JSR-223

The JSR-223 defines scripting in the Java platform. Sun's implementation of Java SE 6 includes Rhino engine for Javascript.

Other Script Engines exists for other languages such as Ruby, Python, Tcl, PHP...

You may include scripting support in your Java application for various reasons:

- Sophisticated configuration options

- User-defined functionality

- Ease of maintenance

- Skill set of users

- Reuse of code modules in other languages

JSR-223 Example 1

Example 2 Jill Bob Jill Bob Dana

BSF Similar to JSR-223 Created by IBM, then donated to Apache S.F. http://jakarta.apache.org/bsf/

Resources http://jruby.codehaus.org/ http://dist.codehaus.org/jruby/talks/ http://developers.sun.com/events/techdays/presentations/2007/TD_GEN_JavaSE_Scripting.pdf http://headius.blogspot.com/ https://scripting.dev.java.net/ http://java.sun.com/developer/technicalArticles/J2SE/Desktop/scripting/ http://www.jrubyinside.com/ http://jcp.org/en/jsr/detail?id=223