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7 Replies Latest reply: Nov 2, 2012 5:57 PM by EJP RSS

Question on Composition relationship.

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Which is true about composition relationship
1. it can be one to many
2. it can never be one to many
3.it is always one to many
4.it is used to show exclusive ownership
5.never used when an object is owned by exactly one other object.

i think answer shud be 1.
But its answer is 1 and 4.(as per the answers given in the book i am referring to)

why 4 is the answer.I know composition is the relation which says one can not exist without other....then how is it used to show exclusive relationships.
pls clarify...

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