I've got a situation where I have several hundred objects of a class
that have a KVC-compliant property. There are a matching set of other
objects that refer to the former. For a problem I need to solve, one
solution is for the other objects to observe the property of their
counterpart object. That is: object's of class B would observe some
property of objects of class A. While I know that this is just the
sort of thing that KVO supports, I am wondering if establish hundreds
of these observer relationships is a heavy-weight solution, or is each
individual observer reasonably light-weight, and this a viable way to
go. TIA.
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