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What about aggregation ?



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What about aggregation ?

Posted by Krishna Sankar on 26 Oct 1998, 6:09 AM


What about aggregation ? Is it not the other side of composition ? I view aggregartion as holding a reference to an object which exist outside the current object, otherwise same as composition.

Couple of good thigs happen here:

1. Performance hit might be reduced as the object is already created

2. More importantly, it can do distributed processing ! The aggregated object need not me in the same namespace of the aggregator !(Pardon the nouns). Try to do this with inheritence !

I think, when we talk about composition, we should consider aggregation also especially in this age of distributed computing.



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