Refactoring Patterns

I read MartinFowler's article (see ReFactor) where he gives an example of how refactoring works in practice. That made me wonder whether there are patterns here. I've attempted to write a couple of them down, almost all of them shamelessly stolen from Martin's article. Feel free to comment and edit for clarity or brevity. --MarnixKlooster

First there some patterns about refactoring in general:

• BacktrackIfRefactoringFails
• TheFirstRefactoringStep
• RefactoringInVerySmallSteps
• TestEveryRefactoring
• RefactoringInDuets
• RefactoringUsingTools
• RefactoringHat

(Some of these patterns were created by SantiagoValdarrama? who used the reduced pattern version to create a complete version using a pattern template. Also, he created some of them from the ground up.)

And there are also specific techniques that one can use:

• MethodObject -- a pattern
• ExtractMethod
• MoveMethod
• ReplaceConditionalWithPolymorphism
• InlineMethod

Here http://www.refactoring.com/catalog/index.html is a list that is a bit longer...

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You really must read MartinFowler's RefactoringImprovingTheDesignOfExistingCode.

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See AboutRefactoringPatterns, RefactoringToPatterns.

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CategoryRefactoring