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Getting Started with Google GSON

In Java world,  JSON is becoming de facto standard for data exchange format over XML because of its ease of use and efficiency in terms of transferring it. If you don’t know about ...
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Introduction to Apache Camel

Apache Camel is a open source implementation of famous Enterprise Integration Patterns.   Camel is a Routing and Mediation Engine and facilitates the developers to create routes and ...
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Scalable real time state update with Storm

In this post, I illustrate how to maintain in DB the current state of a real time event-driven process in a scalable and lock free manner thanks to the Storm framework. Storm is an ...
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EJB passivation and activation example

In this tutorial we are going to see how activation and passivation works in a Stateful Java Enterprise Session Bean. 1. Introduction Stateful Session Beans usually hold information ...
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Transparently persist and retrieve encrypted data from database

It’s over two months since my last post here but June and July were extremely busy and intensive months this year. First, organisation of Confitura (the biggest free conference for ...
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Java EE Stateful Session Bean (EJB) example

In this article we are going to see how you can use Stateful Session Beans to keep track of state across a client Session in a simple Web Application. 1. Introduction Stateful Session ...
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neo4j/cypher: Getting the hang of query parameters

For as long as I’ve been using neo4j‘s cypher query language Michael has been telling me to use parameters in my queries but the performance of the queries was always acceptable ...
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Graph Processing: Betweeness Centrality – neo4j’s cypher vs graphstream

Last week I wrote about the betweenness centrality algorithm and my attempts to understand it using graphstream and while reading the source I realised that I might be able to put something ...
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Unit Testing of Spring MVC Controllers: REST API

Spring MVC provides an easy way to create REST APIs. However, writing comprehensive and fast unit tests for these APIs has been troublesome. The release of the Spring MVC Test framework ...
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Neo4j Java REST Binding – Part 2 (Batching)

In Part 1, we talked about setting up a connection to the Neo4j Server using the Java REST Binding. Let’s now go into some details about transactions, batching, and what the REST ...
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