Design Patterns and Best Practices in Java

Adapter

The best example is the usage of the map function that performs an adaptation from the old interface to the new interface. We are going to reuse the example from Chapter 4, Structural Patterns, with a small twist; the map simulates the adapter code:

jshell> class PS2Device {};| created class PS2Devicejshell> class USBDevice {};| created class USBDevicejshell> Optional.of(new PS2Device()).stream().map(x -> new USBDevice()).findFirst().get()$39 ==> USBDevice@15bb6bea