Java Design Patterns: A Hands-On Experience with Real-World Examples

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

V. SarcarJava Design Patternshttps://doi.org/10.1007/978-1-4842-7971-7_11

11. Facade Pattern

Vaskaran Sarcar¹  

(1)

Garia, Kolkata, India

 

This chapter covers the Facade pattern.

GoF Definition

It provides a unified interface to a set of interfaces in a subsystem. The Facade pattern defines a higher-level interface that makes the subsystem easier to use.

Concept

This pattern is a great promoter of loose coupling. Using this pattern, you emphasize the abstraction and hide the complex details by exposing a simple interface.

Consider a simple case. Let’s say an application has multiple classes and each consists of multiple methods. A client can make a product using ...