PHP 8 Objects, Patterns, and Practice: Mastering OO Enhancements, Design Patterns, and Essential Development Tools

© Matt Zandstra 2021

M. ZandstraPHP 8 Objects, Patterns, and Practicehttps://doi.org/10.1007/978-1-4842-6791-2_10

10. Patterns for Flexible Object Programming

Matt Zandstra¹  

(1)

Brighton, UK

 

With strategies for generating objects covered, we’re free now to look at some strategies for structuring classes and objects. I will focus in particular on the principle that composition provides greater flexibility than inheritance. The patterns I examine in this chapter are once again drawn from the Gang of Four catalog.

This chapter will cover a trio of patterns:

• The Composite pattern: Composing structures in which groups of objects can be used as if they were individual objects

• The Decorator pattern: A flexible mechanism for combining objects at runtime to ...