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Creating DataTable From RSS Feed And YQL

                   Yahoo Query Language(YQL ) is a query language like SQL. Using YQL we can query, filter, and join data across ...
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Don’t rely on unit tests alone

When you are building a complex system, barely testing components in isolation is not enough. It’s crucial, but not enough. Imagine a car factory that manufactures and imports ...
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Spring Bean names

Spring bean names are straightforward, except for cases where names are not explicitly specified. To start with, Spring bean names for an xml based bean definition is specified this ...
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Hadoop Hangover: Launch a hadoop cluster CDH4 using Apache Whirr

This post is about how-to launch a CDH4 MRv1 or CDH4 Yarn cluster on EC2 instances. It’s said that you can launch a cluster with the help of Whirr and in a matter of 5 minutes! ...
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Pool of ssh connections using Apache KeyedObjectPool

I found the org.apache.commons.pool extremely useful and robust, but not well documented. So, I’ll try to help a bit here explaining how to use an Apache KeyedObjectPool. What ...
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Introduction To JavaEE Concepts

This post aims at clarifying acronyms and concepts used in the J2EE paradigm. J2EE stands for Java to Platform, Entreprise Edition. It enables the creation of modular Java applications ...
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JDBC Realm and Form Based Authentication with GlassFish 3.1.2.2 and Primefaces 3.4

One of the most popular posts on my blog is the short tutorial about the JDBC Security Realm and form based Authentication on GlassFish with Primefaces. After I received some comments ...
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Spring Framework: Three Spring Bean Lifecycle Techniques

When using the term ‘lifecycle’ the Guys at Spring are referring to the construction and destruction of your beans and usually this is in relation to the construction and ...
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Jenkins hierarchical jobs and jobs status aggregation

As you probably know, Jenkins is highly configurable CI server. We can setup different custom build process. And I’m going to share some approach I’ve been using to setup ...
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Caching with Spring Data Redis

In the example below, I’ll show you how to use the Spring Data – Redis project as a caching provider for the Spring Cache Abstraction that was introduced in Spring 3.1. I get a ...
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