Many to many association idiom

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The many to many association idiom is useful for removing class interdependence when there is a many to many class association.

Before

ManyToManyAssociation1.jpg

After

ManyToManyAssociation2.jpg

The Mediator pattern is a higher level pattern which removes many-to-many relationships between classes, but it's main purpose is to reduce complexity of a set of objects which have many inter-dependencies.

See Also

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