Design Patterns #4 - Composite

Описание: This is part four of the design pattern series.

In this video you will learn about the composite design pattern. The composite design pattern is a structural pattern that allows you to treat individual objects and groups of objects (composites) uniformly. It enables you to build tree-like structures where both primitive objects (leaves) and composite objects (containers of other objects) implement the same interface. This way, clients can interact with objects and compositions of objects in the same way, making the system easier to work with, especially when dealing with complex hierarchies.

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Source(s):
Design Patterns (book) by Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides