InfoQ Homepage Development Content on InfoQ
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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.
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How RESTful Are Web Frameworks That Claim REST Support?
There are plenty of web services platforms/application frameworks available today that support RESTful services to varying degrees. In a recent post Stefan Tilkov puts out a list of criteria that can serve as a starting point in evaluating these frameworks and platforms.
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Microsoft is Planning to Allow Private Installations of Windows and SQL Azure
Along with partners HP, Dell, and Fujitsu, Microsoft is offering private installations of Windows Azure. The product will be offered in appliance format, meaning Microsoft will be selling the hardware and software as a bundle. While no pricing is set, the target audience is customers like eBay who can afford at least one thousand servers.
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Object Oriented Programming: The Wrong Path?
In a QCon London 2010 interview with Joe Armstrong, the original developer of Erlang, and Ralph Johnson, long associated with Smalltalk, OOP, and Patterns, the question of whther we've gone down the "wrong path" w.r.t. object orientation all these yearrs. Both interviewees suggest that we have, but this is due to flaws in the implementation of object ideas and not the ideas themselves.