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Couchbase : Create a large dataset using Twitter and Java

An easy way to create large dataset when playing/demonstrating Couchbase -or any other NoSQL engine- is to inject Twitter feed into your database. For this small application I am using:Couchbase ...
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Investigating Deadlocks – Part 4: Fixing the Code

In the last in this short series of blogs in which I’ve been talking about analysing deadlocks, I’m going to fix my BadTransferOperation code. If you’ve seen the other blogs ...
eclipselink-logo

Polyglot Persistence: EclipseLink with MongoDB and Derby

Polyglot persistence has been in the news since some time now. Kicked off by the famous Fowler post from end 2011 I see more an more nice ideas coming up. Latest one was a company ...
java-interview-questions-answers

Oracle ADF Mobile World! Hello!

Hello, ADF Mobile, World! As you probably already know… ADF Mobile is here! Here are some links that will make you feel at home.. Home page of ADF Mobile: http://www.oracle.com/technetwork/developer-tools/adf/overview/adf-mobile-096323.html How ...
jboss-hibernate-logo

JPA/Hibernate: Version-Based Optimistic Concurrency Control

This article is an introduction to version-based optimistic concurrency control in Hibernate and JPA. The concept is fairly old and much has been written on it, but anyway I have seen ...
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By your Command – Command design pattern

Command design pattern is one of the widely known design pattern and it falls under the Behavioral Design Pattern (part of Gang of Four). As the name suggests it is related to actions ...
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Coherence Event Processing by using Map Trigger Feature

This article shows how to process Coherence events by using Map Triggers. Basically, Distributed Data Management in Oracle Coherence is suggested to look over basic configuration and ...
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Performance Analysis of REST/HTTP Services with JMeter and Yourkit

My last post described how to accomplish stress- or load-testing of asynchronous REST/HTTP services with JMeter. However, running such tests often reveals that the system under test ...
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Investigating Deadlocks – Part 3

In my previous two blogs in this series, part 1 and part 2, I’ve demonstrated how to create a piece of bad code that deadlocks and then used this code to show three ways of taking ...
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JUnit Rules

The first time I stumbled over a JUnit @Rule annotation I was a bit irritated of the concept. Having a public field in a test case seemed somewhat odd and so I was reluctant to use ...
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