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

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

by Vaskaran Sarcar
December 2018
Intermediate to advanced content levelIntermediate to advanced
512 pages
8h 51m
English
Apress
Content preview from Java Design Patterns: A Hands-On Experience with Real-World Examples
© Vaskaran Sarcar 2019
Vaskaran SarcarJava Design Patternshttps://doi.org/10.1007/978-1-4842-4078-6_7

7. Decorator Pattern

Vaskaran Sarcar1 
(1)
Bangalore, Karnataka, India
 

This chapter covers the decorator pattern.

GoF Definition

Attach additional responsibilities to an object dynamically. Decorators provide a flexible alternative to subclassing for extending functionality.

Concept

This pattern says that the class must be closed for modification but open for extension; that is, a new functionality can be added without disturbing existing functionalities. The concept is very useful when we want to add special functionalities to a specific object instead of the whole class. In this pattern, we try to use the concept of object composition instead of inheritance. ...

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Publisher Resources

ISBN: 9781484240786Purchase LinkPublisher Website