InfoQ Homepage News
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The state of the Lambda in Ruby 1.9
One of Ruby 1.9's little additions is a new, more concise way to create lambda functions, amongst some other clarifications in the way Blocks work. We take a look at the changes and the reasons for them.
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Presentation: Leveraging the Web for Services at Yahoo!
In a presentation recorded at QCon, Mark Nottingham, a "Principal Technical Yahoo!", provided some insight into how the Yahoo! Media Group uses the Web, and not Web services, to build its SOA variant. According to Mark, the Yahoo! Media Group gains significant advantages by using HTTP RESTfully, especially by exploiting caching opportunities.
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JPA Frameworks Compared
java.net is hosting an article written by Sharad Acharya titled "Java Persistence Framework: Which, When, and What?" that compares four popular persistence frameworks: CMP Entity EJBs, JPA, Hibernate, and TopLink. Acharya discusses each technology and summarizes his findings in a matrix.
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Massive Silverlight 2.0 Deployment Planned for August
On August 8th, the Summer Olympic Games will start in China. To coincide with that, Microsoft has persuaded NBC to use Silverlight 2.0 for online coverage. With millions of people expected to watch the games online, this could very well be fastest deployment of a new online technology.
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OpenLaszlo Working to Support Flash Player 9 Runtime
OpenLaszlo is working to support the Flash Player 9 Runtime. OpenLaszlo was one of the first application development frameworks to target the Flash Player Runtime (starting with version 7). Since that time, the Adobe Flex framework has surged ahead in adoption, partly because of their support for the Flash Player 9.
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Presentation: Linda DeMichiel on EJB 3 & JPA
In this talk from last year's QCon London, Linda DeMichiel, who has been leading the EJB spec since the 1.0 days, presents EJB3 with a focus on JPA. The talk covers key aspects of the Java Persistence API and its role in the development of EJB 3.0 apps, including use of the EntityManager API, persistence units and persistence contexts, queries, object/relational mapping, etc.
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How-to Make your AJAX Applications Scream on the Client
AJAX is hot, no one will argue, but what is often the case is your Web 2.0 applications don't perform as well as you had hoped. Learn how a few simple optimizations can help.
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Consistency vs. availability: eventual consistency by Werner Vogels
Until the mid nineties, achieving distribution transparency and data consistency has often been the priority. As large Internet systems started to arise, availability became another important concern to be taken into consideration. Werner Vogels outlines some principles, abstractions and consistency/availability trade-offs related to large scale data replication with focus on eventual consistency.
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BPEL4People and WS-HumanTask Head To OASIS
John Evdemon, co-chair of the WS-BPEL technical committee, has announced that BPEL4People and WS-HumanTask are going to OASIS. Adding a standard approach to human interaction support to WS-BPEL is something many people have been asking for and this could be the solution.
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Engine Yard Takes $3.5 Million Series A From Benchmark Capital
Pioneering Ruby on Rails-hosting company Engine Yard has taken $3.5 million Series A in a round led by the prominent VC firm Benchmark Capital. Benchmark is responsible for early stage funding of some very successful startups such as eBay, Linden Labs, Yelp and Zillow. The move strikes confidence into the hearts of Ruby fans everywhere.
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Ruby 1.9 - When Will It be Production Ready
Ruby 1.9 is out - but it's not yet intended to be used in production systems. The release tag had one effect: more developers are actually giving it a spin and try to run their applications and libraries and update them for the new version. We looked at how well Ruby 1.9 fares in this aspect.
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File System Transactions - still a problem area?
Historically transaction-processing systems have relied primarily, if not solely, on databases to handle the ACID aspects of any IO activities that required to be transactional. The support for transactions for file system operations has been weak at either the libraries/frameworks, languages or file system levels. Lately, this situation is starting to show signs of improvement.
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Why Crunch Mode Doesn't Work
Evan Robinson recently posted an article on why the practice of 'crunch time' doesn't work. Despite a century of studies showing that long-term output is maximized near a five-day, 40-hour work week, projects still hit the crunch usually to the detriment of the team. InfoQ looks at why crunch time is still so prevalent in the software industry and, if we know it's bad, why do we still do it?.
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Debate: Should the Java language stop adding new features?
Recently, there has been a lot of debate over the future of the Java platform, with some arguing for more features to compete with languages such as C# and Ruby, and others saying that Java should become a more stable language lest it become too complicated to use. Bruce Eckel started a new round of debates by stating that Java should stop adding new features entirely.
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