JRuby Cookbook

Larger Cover

JRuby Cookbook

By Justin Edelson, Henry Liu

Publisher: O'Reilly Media

Released: November 2008

Pages: 224

If you're interested in JRuby, you probably don't need a turorial on Ruby, Rails, or Java -- you just need to know how to get things done. This Cookbook offers practical solutions for using the Java implementation of the Ruby language, with targeted recipes for deploying Rails web applications on Java servers, integrating JRuby code with Java technologies, developing JRuby desktop applications with Java toolkits, and more. Using numerous reusable code samples, JRuby Cookbook shows you how to:

Install and update JRuby on Windows, Mac OS X, and Linux, and IDEs such as NetBeans and Eclipse
Package and deploy Rails apps on Java Servlet containers and Java EE application servers, including JBoss, Tomcat, and GlassFish
Integrate Ruby and Rails applications with popular Java EE technologies such as JMS, JMX, JPA, Spring, and Hibernate
Develop desktop and client applications with cross-platform Java UI technologies and toolkits such as Swing, SWT, and Java 2D
Maximize the flexibility of your testing and build environment, using both existing Java-based tools such as Ant and Maven and newer Ruby-based tools such as Rake, Raven, and Buildr

The JRuby interpreter combines Ruby's simplicity and ease of use with Java's extensive libraries and technologies, a potent blend that opens new possibilities for Ruby, Rails, and Java. This Cookbook helps you take full advantage of JRuby's potential.

"The JRuby Cookbook is an excellent book for any polyglot who is trying to bridge the gap between Java and Ruby. It provides solutions to specific problems developers face in both their development and testing environments, along with the applications they're building."-- Bob McWhirter, Research & Prototyping, Red Hat Middleware

Chapter 1 Getting Started
1. Introduction
2. Installing JRuby
3. Managing Packages with RubyGems
4. Using Both Ruby and JRuby
5. Sharing RubyGems
6. Referencing Java Classes from Ruby
7. Converting a Ruby Array into a Java Array
8. Adding JAR Files to the Classpath
9. Extending a Java Class in Ruby
10. Implementing a Java Interface in Ruby
11. Opening Java Classes with JRuby
12. Setting Up Eclipse for JRuby Development
13. Setting Up NetBeans for JRuby Development
14. Platform Detection in a JRuby Application
Chapter 2 JRuby on Rails
1. Introduction
2. Installing and Setting Up Rails
3. Packaging Rails As a Java EE Web Application
4. Using an External Gem Repository with a Web Application
5. Configuring the JRuby-Rack Servlet
6. Packaging Rails with a JNDI DataSource
7. Deploying Rails on Tomcat
8. Deploying Rails on JBoss
9. Deploying Rails on Jetty
10. Deploying Rails with jetty_rails
11. Deploying Rails with Mongrel
12. Deploying Rails on the GlassFish v2 Server
13. Using the GlassFish v3 Gem
14. Using ActiveRecord Outside of Rails
15. Accessing Common Java Servlet Information
16. Configuring Session Storage
17. Controlling the Classes, Directories, and Other Files Packaged into a Rails WAR File
18. Changing the Name of the WAR File and the Staging Area
19. Deploying a Rails Application to the Root Context
20. Creating a Rails Application with Aptana Studio
21. Accessing Static Files in Your Rails Java EE Application
Chapter 3 Java Integration
1. Introduction
2. Executing Ruby from Java
3. Invoking JRuby Through the Bean Scripting Framework
4. Invoking JRuby Through Java Scripting Support
5. Logging from Ruby with Jakarta Commons Logging
6. Using the Java Concurrency Utilities
7. Creating JavaBean Style Accessor Methods
8. Writing Consistent Code
9. Transforming XML with TrAX
10. Creating a Pool of JRuby Runtimes
11. Performing Remote Management with JMX
12. Accessing Native Libraries with JRuby
Chapter 4 Enterprise Java
1. Introduction
2. Creating a JNDI Context
3. Sending JMS Messages
4. Receiving JMS Messages
5. Implementing an Enterprise JavaBean with JRuby
6. Defining Spring Beans in JRuby
7. Creating Refreshable JRuby Spring Beans
8. Defining JRuby Spring Beans Inline
9. Applying Spring-Aware Interfaces to JRuby Objects
10. Creating Spring MVC Controllers with JRuby
11. Using Hibernate with JRuby
12. Using the Java Persistence API with JRuby
13. Making SOAP Calls
14. Simplifying LDAP Access
Chapter 5 User Interface and Graphics
1. Introduction
2. Creating Swing Applications
3. Swing Event Handling
4. Long-Running Tasks in Swing Applications
5. Packaging Standalone Applications
6. Packaging JRuby Web Start Applications
7. Creating JRuby Applets
8. Manipulating Images
9. Creating SWT Applications
10. Accessing the Native Desktop
11. Accessing the System Tray
12. Swing Development with JRuby Domain-Specific Languages
13. Using the Monkeybars Framework for Swing Development
14. Creating Qt Applications with JRuby
Chapter 6 Build Tools
1. Introduction
2. Adding Ruby Scripting to Ant Builds
3. Using Ruby in Ant Conditions
4. Writing an Ant Task in Ruby
5. Adding Ruby Scripting to Maven Builds
6. Writing a Maven Plugin with JRuby
7. Building Java Projects with Raven
8. Referencing Libraries with Raven
9. Hosting a Private Raven Repository
10. Running JUnit Tests with Raven
11. Building Java Projects with Buildr
12. Referencing Libraries with Buildr
13. Building with Rake Inside Hudson
14. Adding Ruby Script to a Hudson Job
Chapter 7 Testing
1. Introduction
2. Unit Testing Java Code with Test/Unit
3. Unit Testing Java Code with dust
4. Unit Testing Java Code with Expectations
5. Testing Java Code with RSpec
6. Creating Mock Objects with Mocha
7. Modifying the JtestR Classpath
8. Grouping Tests for JtestR
9. Using the JtestR Command-Line Options
10. Running JtestR with Ant
11. Running JtestR with Maven
12. Improving JtestR Performance
Chapter 8 The JRuby Community
1. Introduction
2. Building JRuby from Source
3. Submitting an Issue Report for JRuby
4. Using the JRuby Mailing Lists

Colophon

Title:

JRuby Cookbook

By:

Justin Edelson, Henry Liu

Publisher:

O'Reilly Media

Formats:

Print
Ebook
Safari Books Online

Print:

November 2008

Ebook:

November 2008

Pages:

224

Print ISBN:

978-0-596-51980-3

| ISBN 10:

0-596-51980-X

Ebook ISBN:

978-0-596-15647-3

| ISBN 10:

0-596-15647-2

Description

Table of Contents

Product Details

About the Author

Colophon

Recommended for You

Chapter 1 Getting Started

Introduction

Installing JRuby

Managing Packages with RubyGems

Using Both Ruby and JRuby

Sharing RubyGems

Referencing Java Classes from Ruby

Converting a Ruby Array into a Java Array

Adding JAR Files to the Classpath

Extending a Java Class in Ruby

Implementing a Java Interface in Ruby

Opening Java Classes with JRuby

Setting Up Eclipse for JRuby Development

Setting Up NetBeans for JRuby Development

Platform Detection in a JRuby Application

Chapter 2 JRuby on Rails

Introduction

Installing and Setting Up Rails

Packaging Rails As a Java EE Web Application

Using an External Gem Repository with a Web Application

Configuring the JRuby-Rack Servlet

Packaging Rails with a JNDI DataSource

Deploying Rails on Tomcat

Deploying Rails on JBoss

Deploying Rails on Jetty

Deploying Rails with jetty_rails

Deploying Rails with Mongrel

Deploying Rails on the GlassFish v2 Server

Using the GlassFish v3 Gem

Using ActiveRecord Outside of Rails

Accessing Common Java Servlet Information

Configuring Session Storage

Controlling the Classes, Directories, and Other Files Packaged into a Rails WAR File

Changing the Name of the WAR File and the Staging Area

Deploying a Rails Application to the Root Context

Creating a Rails Application with Aptana Studio

Accessing Static Files in Your Rails Java EE Application

Chapter 3 Java Integration

Introduction

Executing Ruby from Java

Invoking JRuby Through the Bean Scripting Framework

Invoking JRuby Through Java Scripting Support

Logging from Ruby with Jakarta Commons Logging

Using the Java Concurrency Utilities

Creating JavaBean Style Accessor Methods

Writing Consistent Code

Transforming XML with TrAX

Creating a Pool of JRuby Runtimes

Performing Remote Management with JMX

Accessing Native Libraries with JRuby

Chapter 4 Enterprise Java

Introduction

Creating a JNDI Context

Sending JMS Messages

Receiving JMS Messages

Implementing an Enterprise JavaBean with JRuby

Defining Spring Beans in JRuby

Creating Refreshable JRuby Spring Beans

Defining JRuby Spring Beans Inline

Applying Spring-Aware Interfaces to JRuby Objects

Creating Spring MVC Controllers with JRuby

Using Hibernate with JRuby

Using the Java Persistence API with JRuby

Making SOAP Calls

Simplifying LDAP Access

Chapter 5 User Interface and Graphics

Introduction

Creating Swing Applications

Swing Event Handling

Long-Running Tasks in Swing Applications

Packaging Standalone Applications

Packaging JRuby Web Start Applications

Creating JRuby Applets

Manipulating Images

Creating SWT Applications

Accessing the Native Desktop

Accessing the System Tray

Swing Development with JRuby Domain-Specific Languages

Using the Monkeybars Framework for Swing Development

Creating Qt Applications with JRuby