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Morphia and MongoDB: Evolving Document Structures

In my previous post on Morphia, I went through some typical usages and mentioned some caveats and workarounds for known problems. I showed how easy it is to work with Morphia and how ...
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Understanding Java Weak References

I could not pay attention to the blog in the recent times and first and foremost I must apologize for not staying in touch with you all in the world of technology. I recently stumbled ...
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TestNG or JUnit

For many years now, I have always found myself going back to TestNG whenever it comes to doing Unit Testing with Java Code. Everytime, I picked up TestNG, people have asked me why do ...
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Java Annotations & A Real World Spring Example

An “annotation” is a type of programming language definition and used as a “marker”. They can be thought as comment lines which programming language engine can understand. ...
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Master Detail CRUD operations with Regions ADF 11g

Hi, This is an example that demonstrates how to create a Master Detail relationship between tables by using Regions. The main purpose of regions is the notion of reusability. With regions ...
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Extending your JPA POJOs

Extensibility is an important characteristic in many architectures.  It is a measure of how easy (or difficult) it is to add or change functionality without impacting existing ...
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OpenShift Express: Deploy a Java EE application (with AS7 support)

During the past few years, I’ve been hearing about “cloud” services more and more. Initially I wasn’t really curious to try them out. But a few months (a year?) ...
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Profile your applications with Java VisualVM

When you need to discover what part of an application consume the more CPU or Memory, you must use a profiler to do that. One profiler, packed by default with the Sun JDK is Java VisualVM. ...
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Java 8 Status Updates

The two big new language features of the upcoming Java SE 8 release are Lambda Expressions and Modularity. For both, status updates have been released these days. I’ll share the links ...
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Simulating CDI’s Session and Request Scope in a J2SE app

We’re currently considering refactoring the Naked Objects framework to use JSR-330 (dependency injection) and EE-oriented big brother, JSR-299 (CDI). Using vanilla JSR-330 is a no-brainer, ...
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