Adapter Pattern

“Convert the interface of a class into another interface clients expect.”

The Adapter pattern (GoF, 1994), also known as Wrapper, allows incompatible interfaces to work together. It wraps an existing class with a new interface so that it becomes compatible with what the client code expects — without modifying the original source code.

A real-world analogy: a power plug adapter lets a European device plug into a British socket. The device and the socket don’t change — the adapter bridges the gap.