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Posted on    September-20-2015 11:48 PM

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Jayne Spooner
Jayne Spooner

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Posted on    September-20-2015 11:48 PM

As long as there aren’t any extra instance variables, any subclass can proxy itself as its superclass with a single call. Each class that inherits from the superclass, no matter where it comes from, will now inherit from the proxied subclass. Calling a method in the superclass will actually call the method in the subclass. For libraries where many objects inherit from a base class, proxying the superclass can be all that is needed.

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