Adapter Design Pattern Program In Java
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 design pattern program in java. 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. This is the desired interface class which will be used by the clients. Adapter design pattern. Some of the adapter design pattern example i could easily find in jdk classes are.
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. This article explains adapter design pattern in java with class diagrams and example code. Let s understand the example of adapter design pattern by the above uml diagram. Participants of adapter design pattern.
There are the following specifications for the adapter pattern. It catches calls for one object and transforms them to format and interface recognizable by the second object. 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. Example of adapter pattern.
It defines the application specific interface that client uses directly. Adapter design pattern example in jdk. Adapter pattern lets you wrap an otherwise incompatible object in an adapter to make it compatible with another class. I will also highlight the differences between the decorator design pattern see my previous article decorator design pattern in java here and the adapter design pattern.
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. The adapter pattern deals with how the classes are composed to form larger. The adapter pattern describes how to convert an object into another object which a clients expects. The adapter pattern is widely known in software development and used in many programming languages e g java.
In software engineering the adapter pattern is a software design pattern that allows the interface of an existing class to be used as another interface. Adapter is a structural design pattern which allows incompatible objects to collaborate. Uml for adapter pattern.