Replace Conditional with Polymorphism

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(New page: Straight from Martin Fowler 2003: "You have a conditional that chooses different behaviour depending on the type of the object. ''Move each leg of the conditional to an overriding me...)
 
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Straight from [[Martin Fowler 2003]]:
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Straight from [[Martin Fowler 1999]]:
  
 
"You have a conditional that chooses different behaviour depending on the type of the object.
 
"You have a conditional that chooses different behaviour depending on the type of the object.

Revision as of 02:58, 23 September 2008


Straight from Martin Fowler 1999:

"You have a conditional that chooses different behaviour depending on the type of the object.

Move each leg of the conditional to an overriding methos in a sub class. Make the original method abstract."

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Extract Hierarchy

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