Re: Composition vs. Inheritance

Robbert Haarman wrote:
> So, a better solution would have been to implement just the basic 
> operations (e.g. add) as part of the class definition, and the higher 
> level operations in terms of the basic ones. That way, it would have 
> been clear that you need have overridden only add.

But what if you have a more efficient way of implementing #addAll than
simply iterating through the members of the collection being added?