By admin on Mar 17, 2008 in Behavioral, Java, Programming | 0 Comments
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I was trying Apache Commons Chain when I was trying to design a simple workflow system for my back-end application using the Chain of Responsibility design pattern.
Chain of Responsibility is a popular technique for organizing the execution of complex processing flows. It is not difficult if you want to write it yourself […]
By admin on Jan 26, 2008 in Behavioral, Java, Programming, design pattern | 1 Comment
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A Command pattern is an object behavioral pattern that allows us to achieve complete decoupling between the sender and the receiver. It allows you to encapsulate a request as an object, thereby letting you parameterize clients with different requests, queue or log requests.
Here is a rewrite of the C# example provided in dofactory.com.
First […]
By admin on Dec 28, 2007 in Behavioral, Java, Programming | 1 Comment
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NOTE: This is written for me to recap and relearn what I learnt before….
This article is written in order for me to recap what I have learnt and used before, though I know there are already many sites which talked about all these.
Visitor Pattern defines a new operation to deal with the […]
