Design Patterns : Adapter pattern

Motivation

Sometime a toolkit class that’s designed for reuse isn’t reusable only because its interface doesn’t match the domain-specific interface an application requires.

Intent

Convert the interface of a class into another interface client expects. Adapter lets classes work together that couldn’t otherwise because of incompatible interfaces.

Diagram

Applicability

• You want to use an existing class, and its interface does not match the one you need.
• You want to create a reusable class that cooperates with unrelated or unforeseen classes, that is, classes that don’t necessarily have compatible classes.

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