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Using the State pattern in a Domain Driven Design

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Domain driven design (DDD) is an approach to developing software where the complexity of the problem is addressed by connecting the implementation to an evolving model of the core business concepts. The term was coined by Eric Evans and there is a DDD dedicated site which promotes its use. According to their definition (Glossary of Domain-Driven Design Terms), DDD is ...

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Java Fork/Join for Parallel Programming

The last few years a paradigm shift is taking place in the field of computer processors. For years, processor makers consistently delivered increases in clock rates, so developers enjoyed the fact that their single-threaded software executed faster without any effort from their part. Now, processor makers favor multi-core chip designs, and software has to be written in a multi-threaded or ...

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Spring 3.1 Cache Abstraction Tutorial

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One of the new features introduced in the forthcoming Spring 3.1 version is the one of cache abstraction. Spring Framework provides support for transparently adding caching into an existing Spring application. Similar to the transaction support, the caching abstraction allows consistent use of various caching solutions with minimal impact on the code. At its core, the abstraction applies caching to ...

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Xuggler Tutorial: Transcoding and Media Modification

Note: This is part of our “Xuggler Development Tutorials” series. In my previous tutorial, I performed a short Introduction to Xuggler for Video Manipulation. In this part, we are going to see some more exciting capabilities provided by Xuggler and FFmpeg, like video transcoding and media modification. Don’t forget that Xuggler is a Java library that can be used to ...

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Best Of The Week – 2011 – W07

Hello guys, Time for the “Best Of The Week” links for the week that just passed. Here are some links that drew JavaCodeGeeks attention: * Getting Started with Enterprise Messaging and Spring: An introductory article to messaging with JMS and how to leverage Spring’s messaging support. It explains how to use Spring with both the Java Message Service (JMS) API ...

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Spring MVC Development – Quick Tutorial

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This is a short tutorial on Developing web applications with Spring from Manoj at “The Khangaonkar Report”, one of our JCG partners. (NOTE: The original post has been slightly edited to improve readability) Spring MVC enables easy web application development with a framework based on the Model View Controller architecture (MVC) pattern. The MVC architectural pattern requires the separation of ...

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Introduction to Xuggler for Video Manipulation

Note: This is part of our “Xuggler Development Tutorials” series. With the explosion of video in the internet, developers frequently need to manipulate video content in their applications. Xuggler is a free open-source library for Java developers which can be used to uncompress, manipulate, and compress recorded or live video in real time. Xuggler uses the very powerful FFmpeg media ...

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Xuggler Development Tutorials

Hey guys, With this post I would like to introduce some new cool tutorials that are coming up at JavaCodeGeeks. They will be about media (audio/video) manipulation with Xuggler, FFmpeg and Wowza. I am going to keep track of all the related tutorials in this post. You can have a first crash on these technologies by checking Pat’s older post ...

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GWT, GWT-Ext (SmartGWT), GXT (Ext GWT) Common Tasks

I was browsing through some old posts at UI-Programming blog, one of our JCG partners, and noticed that there were a lot of short articles on how to perform some common tasks using GWT, GWT-Ext (SmartGWT) and GXT (Ext GWT). I believe they could help you with your day-to-day GWT development so I decided to aggregate them all at this ...

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