Adapter Pattern Using Spring

It is also referred to as the publish subscribe pattern.

Adapter pattern using spring. The object adapter pattern that uses composition to reference an instance of the wrapped class within the adapter. According to gof definition observer pattern defines a one to many dependency between objects so that when one object changes state all its dependents are notified and updated automatically. We use the following interface. Adapter pattern works as a bridge between two incompatible interfaces.

If you buy a mobile phone in india it comes with a charger that only works with power sockets used in india. Adapter pattern promotes the re usability of older existing functionality in your application. This pattern allows you to communicate and interact two or more incompatible objects together. The adapter pattern is also known as wrapper.

This pattern involves a single class which is responsible to join functionalities of independent or incompatible interfaces. In other words to provide the interface according to client requirement while using the services of a class with a different interface. In observer pattern there are many observers subscriber objects that are observing a particular subject publisher object. It s usually implemented once the application is designed.

Advantage of adapter pattern. Adapter design is very useful for the system integration when some other existing components have to be adopted by the existing system without sourcecode modifications. The main motive behind using this pattern is to convert an existing interface into another interface that the client expects. The class adapter pattern that implements the adapter using inheritance.

Let s take the real world example of power adapters. There are following some listed classes based on the adapter design pattern in the spring framework. It is the simplest container present in the spring framework which provides the basic support for di dependency injection. An adapter is used to match interfaces of different classes.

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 spring framework uses the factory design pattern for the creation of the objects of beans by using the following two approaches. Examples of the adapter pattern.