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- 1Strangely enough, this is still downvoted (while being quite correct) ;) To add, one can expose even the (interrelated) internals of a class' instance, if he obliges the user of the class to maintain respective relationships "by hand" -- it's nothing (conceptually or practically) wrong with having such a contract. But if the object can fulfill the same role with less being known about its proper usage (i.e. conforming to a "smaller" contract), that makes it possible to change the internals w/o changing the client code. That's one thing about encapsulation.mlvljr– mlvljr2012-06-03 08:03:37 +00:00Commented Jun 3, 2012 at 8:03
- Another thing is, using several objects together is plain easier when their contracts are more compact -- since the (conceptual) complexity of the code is a "multiplication" of the complexities of those contracts. Of course, in each context there is a limit on "encapsulation level" of the objects involved -- you must still be able to fulfill the given task in the client code, or the (perfectly encapsulated) objects/classes used are ..useless.mlvljr– mlvljr2012-06-03 08:09:34 +00:00Commented Jun 3, 2012 at 8:09
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