'Composition' as I understand it, simply refers to bringing in other objects to do tasks for you internally. Literally "an object inside another object".

In C++ this takes place through protected or private inheritance, or making an object a member. Obviously just making it a normal member is the less idiomatic way. Using inheritance for that essentially exports the interface of the internal object to outside users of the class. You have to do that explicitly if you want it done at all, with normal membership composition.

In Perl, I guess this would be something like $self->{obj} = new ObjectBlah; Simple as that.

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In reply to Re: Composition by hagus
in thread Composition Examples Sought by darrel3edndcom

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