© Vaskaran Sarcar 2019
Vaskaran SarcarJava Design Patternshttps://doi.org/10.1007/978-1-4842-4078-6_9

9. Facade Pattern

Vaskaran Sarcar1 
Bangalore, Karnataka, India

This chapter covers the facade pattern.

GoF Definition

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


Facades make a client’s life easier. Suppose that there is a complex system where multiple objects need to perform a series of tasks, and you need to interact with the system. In a situation like this, facade can provide you a simplified interface that takes care of everything (the creation of those objects, providing the correct sequence of tasks, etc.). As a result, instead of ...

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