next up previous contents
Next: Organization Up: The Graph Hierarchy Previous: The Graph Hierarchy

Discussion

Objects of classes in the Collection hierarchy can be thought of as ``shells'' surrounding a storage medium from the Container class hierarchy. These shells filter the messages sent to the underlying Container instance, thus providing a small, clean interface to the Container hierarchy. Set primitive operations are defined for any two objects of the Collection hierarchy.

 

RHS Linux User
1/26/1998