Here are examples used in my presentation at RubyConf 2010. You can see my slide at http://servletgarden-point.appspot.com/slideshow. Samples are modifed so that those won't rely on environment variables on my PC :)
To run examples, you need JRuby installed. Also, rake and bundler gems should be installed to your JRuby before you run. I tested on:
- JDK 1.6.0
- JRuby 1.5.5
- rake 0.8.7
- bundler 1.0.7
Other gems used in each example are installed when you run rake tasks.
To run clojure examples, first, install Datamapper and uuidtools gems. These are installed by:
jruby -S rake clojure:gems
Then, run examples by:
jruby -S rake clojure:examples
This task runs two examples, DataMapper and uuidtools. If you want to run each example individually, type:
jruby -S rake clojure:dm
jruby -S rake clojure:uuid
In the same way, install gems then run examples:
jruby -S rake jython:gems
jruby -S rake jython:examples
or
jruby -S rake jython:cucumber
jruby -S rake jython:uuid
Scala examples get run in a different way. You need scala installed. For example, I have scala in /Users/yoko/Tools/scala-2.8.0.final directory. In my case, uuidtools example will run by /Users/yoko/Tools/scala-2.8.0.final/bin/scala -cp ./jruby-complete-1.5.5.jar scala/uuid_sample.scala.
jruby -S rake scala:gems
<path to scala>/bin/scala -cp ./jruby-complete-1.5.5.jar scala/redbridge_twitter.scala
<path to scala>/bin/scala -cp ./jruby-complete-1.5.5.jar scala/uuid_sample.scala
Groovy has two examples. Uuidtools example runs in the same way as clojure and jython. So, install gem, then run:
jruby -S rake groovy:gems
jruby -S rake grooby:uuid
Another example is a web app with rails. Install tomcat and make symbolic link to Hemlock or copy Hemlock into tomcat's webapp directory. Then, request url on the browser:
http://localhost:8080/Hemlock/initializer.groovy
http://localhost:8080/Hemlock/dispatcher.groovy
Exactly the same as others:
jruby -S rake jruby:gems
jruby -S rake jruby:uuid