Class Adapter Pattern By Emon Dai Definition A pattern that allows - - PowerPoint PPT Presentation

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Mar 25, 2024 481 likes •565 views

Class Adapter Pattern By Emon Dai Definition A pattern that allows two classes or interfaces to work together that were not designed to work with each other Also known as the Wrapper pattern Uses When there is an existing

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Class Adapter Pattern

By Emon Dai

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Definition

A pattern that allows two classes or interfaces to

work together that were not designed to work with each other

Also known as the “Wrapper” pattern

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Uses

When there is an existing class you want to use but

the current interface doesn’t meet your requirements or needs

When you want to create a new, reusable class that

works with another class that is not related

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Terminology

Target
The interface the client uses or wants to use
Client
Works with the objects that use Target interface (Main class)
Adaptee
The interface that you want to adapt. In Java, we subclass this class
Adapter
Adapts the interface of the Adaptee so that it works with the Target
interface. This inherits from the Adaptee in Java

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Diagram

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SavingsAccount To ICurrencyFormatter Adapter

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References

Design Patterns, Gamma, et. al., Addison Wesley,

1995, ISBN: 0201633612

http://www.avajava.com/tutorials/lessons/adapter-

pattern.html?page=1

https://msdn.microsoft.com/en-us/library/
rm-9780596527730-01-04.aspx