Adaptor Design Pattern In Java Example
Now when we have a good understanding of what s an adapter looks like let s identify the actors used into adapter design pattern.
Adaptor design pattern in java example. Adapter pattern example consider a scenario in which there is an app that s developed in the us which returns the top speed of luxury cars in miles per hour mph. 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. The adapter pattern describes how to convert an object into another object which a clients expects. Adapter design pattern example in jdk.
This type of design pattern comes under structural pattern as this pattern combines the capability of two independent interfaces. The adapter pattern is widely known in software development and used in many programming languages e g java. 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. Dont worry too much about logic following example source code attempts to explain adapter design pattern and the goal is simplicity.
Participants of adapter design pattern. Adapter pattern in java. Adapter design pattern class diagram. Some of the adapter design pattern example i could easily find in jdk classes are.
The classes and or objects participating in this pattern are listed as below. Adapter pattern works as a bridge between two incompatible interfaces. Adapter is a structural design pattern which allows incompatible objects to collaborate. This pattern involves a single class which is responsible to join functionalities of independent or incompatible interfaces.
This article explains adapter design pattern in java with class diagrams and example code. 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. The adapter pattern deals with how the classes are composed to form larger. Class diagram of class adapter pattern.
Adapter class makes classes with incompatible interfaces work together adapter design pattern is a structural design pattern among the gang of four gof article on gof patterns their types design patterns. After 3 years of work i ve finally released the ebook on design patterns. The same real world example is implemented using java as below. Here instead of having an adaptee object inside adapter composition to make use of its functionality adapter inherits the adaptee.