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Eclipse refactoring on steroids

In my last post about common Java violations, I listed a set of mistakes that java developers tend to make. While refactoring a Java project with the objective to resolve those violations, I used the refactoring features of Eclips ...
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Spring MVC for Atom Feeds

How to add feeds (Atom) to your web application with just two classes? How about Spring MVC? Here are my assumptions:you are using Spring framework you have some entity, say “News”, that you want ...
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Generate QR Code image from Java Program

If you are tech and gadget savvy, then you must be aware of QR codes. You will find it everywhere these days – in blogs, websites and even in some public places. This is very popular in mobile apps, where you scan the QR code us ...
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Clean code with aspects

In my previous post I’ve described the alphabet conversion, and I’ve mentioned that we used AspectJ to resolve that task, but i did not mention how AspectJ works and what are aspects generaly. So in the next few lines ...
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Factory Design Pattern Case Study

I had a job to check our project code quality. And have to report it back to my team leader for any obstacle that i found in the project. I found a lot of leaks and i think would be good to be discussed on the blog. Not to mock t ...
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Setting up and playing with Apache Solr on Tomcat

A while back a had a little time to play with Solr, and was instantly blown away by the performance we could achieve on some of our bigger datasets. Here is some of my initial setup and configuration learnings to maybe help someon ...
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Java 7: Meet the Fork/Join Framework

JSR-166(y) is the official name of this new feature which is included in Java 7. If you notice there is a ‘y’ in the name, this is because JSR-166 (Concurrency Utilities) is being added since Java 5, but it wont stop h ...
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MapReduce: Working Through Data-Intensive Text Processing – Local Aggregation Part II

This post continues with the series on implementing algorithms found in the Data Intensive Processing with MapReduce book. Part one can be found here. In the previous post, we discussed using the technique of local aggregation as ...
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CometD: Facebook similar chat for your Java web application

Chatting is easy just like eating a piece of cake or drinking a hot coffee. Have you ever thought about developing a chat program by yourself?. You know that, it is not easy as chatting. But, if you are a developer and if you read ...
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Create new message notification pop up in Java

First create JFrame to work as pop up. Add some JLabels in it to contain information and assign them at proper location to look like a notification message.A sample code is given below: String message = 'You got a new notificati ...
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