July 16, 2010

...Learn TDD with Codemanship

Codemanship's Code Smell Of The Week - Switch Statements

Switch statements are bad from an OO design standpoint. Not only because they're basically big nested IF statements, but because they have a tendency to grow. A refactored switch statement would exploit polymorphism, which is the OO way to make decisions about how to do specific "stuff" at run time.

Jason Gorman demonstrates how he refactors a simple switch statement into a polymorphic OO solution (like the Strategy Pattern).

Part I



Part II



Download the source from http://bit.ly/8Y71ik

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Posted 7 years, 9 months ago on July 16, 2010