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OSGi – Simple Hello World with services

In this post, we’ll develop a simple Hello World application with OSGi. We will use Felix as OSGi container. In the next post, we’ll continue with this application and use Spring ...
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High Performance JPA with GlassFish and Coherence – Part 3

In this third part of my four part series I’ll explain strategy number two of using Coherence with EclipseLink and GlassFish. This is all about using Coherence as Second Level ...
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Using MongoDB with Morphia

In the past few years, NoSQL databases like CouchDB, Cassandra and MongoDB have gained some popularity for applications that don’t require the semantics and overhead of running a ...
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High Performance JPA with GlassFish and Coherence – Part 2

In this second part of my four part series I’ll explain strategy number one of using Coherence with EclipseLink and GlassFish.This describes the steps you have to take to configure ...
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Spring Singleton, Request, Session Beans and Thread Safety

The Spring framework ecosystem comprising of so many useful frameworks has become the backbone of many Java EE application. But at the core of all the spring products we still have ...
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High performance JPA with GlassFish and Coherence – Part 1

Have you heard about Coherence before? Probably yes. It’s one of those famous in-memory grid solutions promising awesome fast data access and unlimited space for your ...
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Scala Tutorial – SBT, scalabha, packages, build systems

Preface This is part 11 of tutorials for first-time programmers getting into Scala. Other posts are on this blog, and you can get links to those and other resources on the links page ...
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Best Of The Week – 2011 – W44

Hello guys, Time for the “Best Of The Week” links for the week that just passed. Here are some links that drew JavaCodeGeeks attention: * Practical Challenges of Profiler ...
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JBoss AS 7 EJB3 Pools Configuration

Now that AS 7.0.1 has been released, let’s take a look at what new EJB3 features are available. Like I mentioned in my previous post, AS 7.0.1 now allows you to configure pools ...
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Everybody Knows About MVC…

From a recent blog, you may have gathered that I’ve recently been conducting some interviews and as they were for web application developers a question I asked was “can you explain ...
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