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design-patterns-cpp/adapter
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Adapter

Convert the interface of a class into another interface the clients expect. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces, ie. allows to use a client with an incompatible interface by an Adapter that does the conversion. Adapter has structural purpose and can be applied on classes and also on object. A class adapter uses multiple inheritance to adapt one interface to another and the object adapter uses object composition to combine classes with different interfaces.

When to use

  • 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 classes that don't necessarily have compatible interfaces