InfoQ Homepage Development Content on InfoQ
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WebSphere 7 Feature Pack Supports OSGi-based Application Deployment and SCA Integration
WebSphere Application Server V7 Feature Pack for OSGi Applications and Java Persistence API 2.0 offers a standards-based implementation of OSGi Blueprint Container specification and JPA 2.0. It also provides an optional feature to deploy and manage applications as versioned OSGi bundles. IBM recently announced the GA release of the feature pack which is based on Apache projects Aries and OpenJPA.
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Series On Available Authentication Mechanisms For OData Services And Clients
The WCF Data Services Team have recently been doing a series on the available authentication mechanisms for client/OData service authentication.
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Apache FOP 1.0 released
On Wednesday, the Apache Foundation announced the release of Apache FOP 1.0, a project that has been a decade in the making. Apache FOP, or Formatting Objects Processor, provides a means to turn XML documents into a variety of print-ready formats, such as PDF, PostScript, or even PNG
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Using the Cloud: Two Examples
Most of the discussion about cloud computing has focused on tools, providers, and security. While this focus is appropriate for an emerging technology, it becomes easier to recognize the value of cloud computing when you have actual application examples, or case studies. This month IBM announced two such applications: a development-and-test cloud, and an animation rendering cloud.
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.NET and Azure Samples Showcase .NET Technologies Used in a Layered Architecture
Serena Yeoh, a Microsoft consultant and a contributor to Microsoft pattern&practices Application Architecture Guide, has created a Layered Architecture Sample for .NET 4.0 which was later ported to Azure, showcasing various .NET technologies (WPF, WCF, WF, ASP.NET, ADO.NET EF) used in an architecture based on the Layered Architecture design pattern.
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SourceMate 1.1 for Adobe’s Flash Builder 4 Released
SourceMate is a companion tool for Flash and Flex developers that adds support for code generation, refactoring, code templates, metadata tags and more. Release 1.1 features improvements like customization of the code that SourceMate generates and improved stack traces.
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DataMapper Reaches 1.0 Milestone
DataMapper, an Object Relational Mapper (ORM) for Ruby, arrived at a milestone recently reaching 1.0 status. The release, announced during RailsConf 2010, and coinciding with Dirkjan Bussink's presentation at the conference on the subject.
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Eclipse and Java 6u21 problems
Oracle recently released Java 6 update 21 which had a small but innocuous change in the way that the java.dll was created. Unfortunately, this change impacted Eclipse's startup; but a fix is on the way.
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SAMbdas in Java
Since the initial Lambda proposal was released (and the in-depth InfoQ analysis), there has been a subsequent state of the lambda which has significantly moved the goalposts of the lambda project in JDK 7. Read on to find out what's new.
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Rackspace Has Open Sourced Its Cloud Platform
Rackspace has opened its cloud computing platform source code under Apache 2.0 license as part of OpenStack initiative. NASA is contributing with technology powering NASA Nebula Cloud Platform.
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BigPipe at Facebook: Optimizing Page Load Time
Changhao Jiang, Research Scientist at Facebook, describes a technique, called BigPipe, that contributed to making the Facebook site, "twice as fast." BigPipe is one of several innovations, a "secret weapon," used to achieve the reported performance gains. Another innovation mentioned is architectural in nature, the structuring of Web pages as "pagelets."
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EF Feature CTP 4 Brings Code First Updates and Productivity Improvements
Entity Framework Feature CTP 4 recently released updates the Code First programming model with new code conventions and data annotations, and adds two new types, DbContext and DbSet<TEntity>, providing easy entity model setup using Code First.
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Facebook on Hadoop, Hive, HBase, and A/B Testing
The Hadoop Summit of 2010 included presentations from a number of large scale users of Hadoop and related technologies. Notably, Facebook presented a keynote and details information about their use of Hive for analytics. Mike Schroepfer, Facebook's VP of Engineering delivered a keynote describing the scale of their data processing with Hadoop.
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Developer Perception on Mobile Platforms Survey Results
Vision Mobile has published the Mobile Developer Economics 2010 and Beyond report, containing the results of a survey across +400 developers working on the most important eight mobile platforms. The survey shows what platform the developers prefer, what is the installed base and number of apps per platform, time needed to learn and debug on a platform, and others.
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App Inventor for Android
App Inventor is a beta release from Google labs allows drag and drop development of applications for Android phones. Instead of code, App Inventor allows you to visually design applications and use blocks to specify application logic.