Adapter Design Pattern In Java Code

An example is an adapter that converts the interface of a.

Adapter design pattern in java code. Adapter is a structural design pattern which allows incompatible objects to collaborate. The adapter pattern deals with how the classes are composed to form larger. Below is the code of the shapetype enum for various. After 3 years of work i ve finally released the ebook on design patterns.

Here instead of having an adaptee object inside adapter composition to make use of its functionality adapter inherits the adaptee. The provided code below explores the possible implementation of the two ways adapter. Before and after back to adapter description before. This pattern involves a single class which is responsible to join functionalities of independent or incompatible interfaces.

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. There are the following specifications for the adapter pattern. Full code example in java with detailed comments and explanation. This type of design pattern comes under structural pattern as this pattern combines the capability of two independent interfaces.

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 article explains adapter design pattern in java with class diagrams and example code. 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. Uml for adapter pattern.

Adapter pattern works as a bridge between two incompatible interfaces. One of the popular and often used patterns in object oriented software development is the adapter pattern. Adapter design pattern in java. Using the adapter design pattern in java.

It is often used to make existing classes work with others without modifying their source code. 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. In software engineering the adapter pattern is a software design pattern also known as wrapper an alternative naming shared with the decorator pattern that allows the interface of an existing class to be used as another interface. Let s understand the example of adapter design pattern by the above uml diagram.

This is the desired interface class which will be used by the clients. Design patterns provide a reliable and easy way to follow proven design principles and to write well structured and maintainable code.