Tag Archives: Decorator Design Pattern

Object Oriented Programming

Code Refactoring 16

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Replace Embellishment to DecoratorIn this tutorial, I’ll answer a question that was sent to me. The question pertains to how can we add additional features to code the right way.

When new features are needed it is a bad idea to add new code to older classes. This makes compact easy to understand classes complicated because they break the Single responsibility principle. I’ll show you here how the decorator design pattern instead places each special case behavior (Embellishment) into its own class.

This is a fabulous pattern. The code below will help you learn from the video. Continue reading Code Refactoring 16 →

Java Video Tutorial

Decorator Design Pattern Tutorial

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Decorator Design Pattern TutorialWelcome to my Decorator Design Pattern Tutorial. The Decorator allows you to modify an object dynamically. You would use it when you want the capabilities of inheritance with subclasses, but you need to add functionality at run time.

It is more flexible than inheritance. The Decorator Design Pattern simplifies code because you add functionality using many simple classes. Also, rather than rewrite old code you can extend it with new code and that is always good.

Continue reading Decorator Design Pattern Tutorial →