Java EE Revisits Design Patterns: Asynchronous

Although you may not find Asynchronous method calls listed as a design pattern, I find it worth to mention. So…

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Concurrency Pattern: Producer and Consumer

In my career spanning 15 years, the problem of Producer and Consumer is one that I have come across only…

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GWT MVP made simple

GWT Model-View-Presenter is a design pattern for large scale application development. Being derived from MVC, it divides between view and…

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The Wizard Design Pattern

We all love wizards…. (Software wizards I mean). We are always happy to jump on those ”Next” buttons like we…

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Musing on mis-usings: ‘Powerful use, Damaging misuse’

There’s an old phrase attributed to the former British Prime Minister Benjamin Disraeli which states there are three types of…

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Programming antipatterns

  Did you ever do a code review where you recorded an extremely high amount of WTF/m? And did you…

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Java EE6 Decorators: Decorating classes at injection time

A common design pattern in software is the decorator pattern. We take a class and we wrap another class around…

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Poor man’s approach in practice

One day we ran into problem when an application was randomly starting using more CPU resources as usual. It continued…

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Design Patterns in the JDK

Brian Du Preez, our JCG partner from Zen in the art of IT has made a very fine job of collecting…

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