Adapter
The Adapter pattern allows us to access the functionality of an object using a different interface. As the name suggests, it adapts an object so that it can be used by components expecting a different interface. The following diagram clarifies the situation:
The preceding diagram shows how the Adapter is essentially a wrapper for the Adaptee, exposing a different interface. The diagram also highlights the fact that the operations of the Adapter can also be a composition of one or more method invocations on the Adaptee. From an implementation perspective, the most common technique is composition, where the methods of the Adapter provide ...
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