Tutorial: Resistance is Futile: How to Make Your Java Objects Conform with the Adapter Pattern:

Resistance is Futile: How to Make Your Java Objects Conform with the Adapter Pattern

by Barry Burd and Michael P. Redlich

This article, the fourth in a series on design patterns, introduces the Adapter pattern, one of the 23 design patterns defined in the legendary 1995 book Design Patterns—Elements of Reusable Object-Oriented Software. The book's nickname is the Gang of Four (GoF) book, because of its four authors, Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides.

Design Patterns

• A creational pattern abstracts the instantiation process.
• A structural pattern groups objects into larger structures.
• A behavioral pattern defines better communication among objects.

• A decorator adds responsibilities to an object.
• An adapter connects existing interfaces.

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