InfoQ Homepage Java Content on InfoQ
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Learn More About JRuby (on Rails)
Last night Charles Oliver Nutter, one of the JRuby leads gave a 2+ hour talk on Ruby, JRuby, and JRuby on Rails to the Gateway JUG in St Louis. Slides and a transcript are available online.
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Dojo Gains Charting Engine
Today, Greenplum and SitePen announced the contribution of the new Charting engine to the Dojo Toolkit. The Charting engine is a cross-browser way of creating very complex charts easily, that can be updated on a regular basis.
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Clustering Lucene with TerraCotta
Engineers at TerraCotta have detailed a new way to cluster Lucene, the popular text search library from Apache. Their method involves implementing the Lucene RAMDirectory interface and using TerraCotta DSO to share the RAMDirectory across JVMs.
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InfoQ Interview: Joshua Bloch on Closures, Needed Java Features, Google
In this video interview, Core Java language designer Joshua Bloch talks with InfoQ about the need for Closures, Functional Programming, Java's need for better resource management, Java Puzzlers, and cool stuff Google is doing with Java.
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Raven: Building Java with Ruby
A new alternative in the building tools space is Raven. Raven allows you to use Ruby tools such as Rake and Gem to build Java projects. Build scripts are Ruby scripts, rather than being XML files, and it imports your local Maven repository and handles dependencies.
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moo.fx 2.0 released with Fx.Style while Animator.js avoids inheritance
moo.fx 2.0 has been released featuring new effects to modify any CSS property, the color properties of elements, and to internally scroll long divs. An interesting alternative not using inheritance but providing similar functionality is the Animator.js library. moo.fx and Animator.js are JavaScript effects frameworks designed for speed, robustness, and small size.
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The Problem with JSessionId
An article on RandomCoder.com looks at the negative aspects of using the jsessionid technique for cookieless sessions in Java web applications. The author recommends requiring cookie support to store sessions and includes an example servlet filter to disable jsessionid urls.
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Taking Advantage of Multiple Processor Cores in JEE Applications
Michael Juntao Yuan, and Dave Jaffe have published an article on OnJava.com detailing the process of scaling enterprise Java applications on 64-bit multi-core x86 servers. As chip makers such as AMD and Intel transition from faster megahertz per chip to more cores per chip, performance gains will be harder to achieve for traditional single threaded applications.
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Two years later, frustration with Generics continues
Laird Nelson describes his frustrations with understanding Java Generics. While clear in the simple case, as he works through a more complicated scenario, he ends up throwing them away because they're so complicated. Are we helping or hurting ourselves by using Generics?
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Annotation Transformers in TestNG: The Sweet Spot for Annotations?
In the ongoing search to find the balance between XML and annotations, TestNG has introduced the concept of annotation transformers. An annotation transformer is code that will override the behavior of existing annotations. This allows you to modify your annotation without using XML and without recompiling your source. You will have to recompile your annotation transformers if you change them.
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Google's Bruce Johnson on GWT 1.2 RC Including OS X Development Support
The first release candidate of GWT 1.2 has been announced. Among the changes are full support for OS X development, faster hosted mode, a new HTTP request module, and widgets in TreeItems. InfoQ sat down with GWT tech lead Bruce Johnson to discuss the release.
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Presentation: Martin Fowler on Domain Specific Languages
Domain Specific Languages (DSLs) are limited forms of computer language designed for a specific class of problems. In this JAOO conference talk, Martin Fowler introduces a simple example of DSL, bringing out the difference between external and internal DSLs, and talking through the trade-offs in using both forms.
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Phil Zoio Discusses Bringing Java 5 Features to Struts with Strecks 1.0
Strecks version 1.0 was recently released. Strecks is a set of Java 5 specific extensions to the original Struts framework. Making heavy use of Java 5 annotations, it adds a number of modern features to Struts-based applications, including POJO actions, dependency injection, declarative validation and data binding, interceptors, pluggable views, as well as Spring integration.
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Sun Details The Schedule for Future Java Releases
Jean Elliot, Director of Product Marketing for the Java SE Platform at Sun, was interviewed to talk about where Java SE is now and where it is going. They discussed the current Java SE roadmap, with Java SE 6 due in December and Java SE 7 in 2008. Other topics included open sourcing Java SE and the end-of-life of Java SE 1.3.1.
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Roman Strobl on Enhanced JEE Support in Netbeans 5.5
Version 5.5 of the Netbeans IDE was released over the weekend with enhanced JEE5 support. New releases of the Mobility (for JME) and Visual Web (Ajax and JavaServer Faces) packs are also available. InfoQ sat down with Netbeans evangelist Roman Strobl to discuss the release.