Adaptor Pattern Java Example
While this example may be overkill it illustrates how the adapter pattern can work.
Adaptor pattern java example. Class diagram of class adapter pattern. It defines the application specific interface that client uses directly. The adapter pattern describes how to convert an object into another object which a clients expects. Some of the adapter design pattern example i could easily find in jdk classes are.
We have a mediaplayer interface and a concrete class audioplayer implementing the mediaplayer interface. The adapter could also be thought of as a wrapper. Now we need to use the same app for our client in the uk that wants the same results but in kilometers per hour km h. Participants of adapter design pattern.
Now when we have a good understanding of what s an adapter looks like let s identify the actors used into adapter design pattern. Adapter is a structural design pattern which allows incompatible objects to collaborate. Some say that the adapter pattern is just a fix for a badly designed system which. Adapter pattern in java.
Full code example in java with detailed comments and explanation. A socket attaches to a ratchet provided that the size of the drive is the. Java util arrays aslist java io inputstreamreader inputstream returns a reader java io outputstreamwriter outputstream returns a writer that s all for adapter design pattern in java. This tutorial demonstrates how to use the adapter pattern in java focusing on use cases and types of adapters class object and two ways adapter patterns.
Socket wrenches provide an example of the adapter. Adapter design pattern example in jdk. Here instead of having an adaptee object inside adapter composition to make use of its functionality adapter inherits the adaptee. We are demonstrating use of adapter pattern via following example in which an audio player device can play mp3 files only and wants to use an advanced audio player capable of playing vlc and mp4 files.
After 3 years of work i ve finally released the ebook on design patterns. Watch out for the downsides. Since multiple inheritance is not supported by many languages including java and is associated with many problems we have not shown implementation using class adapter pattern. The adapter pattern is widely known in software development and used in many programming languages e g java.