Design Patterns in C#: A Hands-on Guide with Real-World Examples

© Vaskaran Sarcar 2018

V. SarcarDesign Patterns in C#https://doi.org/10.1007/978-1-4842-3640-6_11

11. Composite Pattern

Vaskaran Sarcar¹  

(1)

Whitefield, Bangalore, Karnataka, India

 

This chapter covers the Composite pattern.

GoF Definition

Compose objects into tree structures to represent part-whole hierarchies. Composite lets clients treat individual objects and compositions of objects uniformly.

Concept

This pattern is useful to represent part-whole hierarchies of objects. In object-oriented programming, a composite is an object with a composition of one or more similar objects, where each of these objects has similar functionality. (This is also known as a “has-a” relationship among objects.) So, the usage of this pattern is common in tree-structured ...