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JQuery DataTables And Java Integration

Jquery DataTables is a open source plugin for creating tables in browser. It has many features like sorting,server side processing, JQUERY UI theme rolling. The download link for this plugin: http://www.datatables.net/download/ I ...
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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 Web services. YQL can also read RSS feed too. Th ...
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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 highest quality parts, but after assembling the ...
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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 way:             & ...
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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! This is very true if and only if everything wor ...
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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 is a KeyedObjectPool? It’s a map that cont ...
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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 to be deployed on application servers. It rel ...
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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 about it that it isn’t any longer workin ...
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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 destruction the Spring Context. There are those ...
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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 the hierarchy of Jenkins’ jobs. Here is u ...
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