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11/19/05: Feature Envy Rule of Thumb

If you're looking at a method and you see a lot of references to different objects inside it, do the following experiment:

Make the method static (which means turning the "this" pointer into a named parameter). Now count the number of times each object is referred to.

What object is referenced the most? Chances are that it would go better as a method on that object.

And if you can split it into meaningful chunks, each of which primarily references a different object -- then divide and conquer.


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