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update problem with Bidirectional composite aggregation [message #619429]

Thu, 31 May 2007 22:55

Pradeep

Messages: 54
Registered: July 2009

Member

Hi,

When I have bi-directional associations, if I update oneside otherside is
automatically getting updated.

Does it anyway differ if I one side of the relationship is composition.

i.e

A contains a list of Bs, and Each B has a reference to A.

class A {

// I set the association to composite aggregation.
EList<B> bs;
}

class B {
A a;
}

Now, I am forced to update both the objects. Otherwise it is resulting in
NullPointerExeception.

Thanks
Pradeep

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