Abstract Factory Pattern In Java Jdk

Abstract factory if you are familiar with factory design pattern in java you will notice that we have a single factory class.

Abstract factory pattern in java jdk. In the factory pattern the factory class has an abstract method to create the product and lets the sub classes to create the concrete product. In this post we will talk and learn about the abstract factory pattern in java. Abstract factory pattern we can consider as another layer of abstraction over factory pattern. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object.

We will see some of factory design pattern usage in jdk. After that well manage access to them using an abstract factory abstractfactory. Factory design pattern super class. The abstract factory design pattern allows you to create hierarchy of factories corresponding to a hierarchy of types those factories create.

Note that this pattern is also known as factory method design pattern. Abstract factory in java abstract factory is a creational design pattern which solves the problem of creating entire product families without specifying their concrete classes. An example of the abstract factory design pattern in the jdk is the newinstance of javaxxmlparsersdocumentbuilderfactory class. A computer with the latest jdk and hopefully an ide.

They are simply static factory methods. To support location specific features begin with modifying our carjava class with another attribute location. Then you have an implementation and from that implementation you can build that something. In this example well create two implementations of the factory method design pattern.

Each generated factory can give the objects as per the factory pattern. Discover the modern implementation of design patterns in java. Abstract factory pattern is almost similar to factory pattern except for the fact that its more like a factory of factories. For our factory design pattern example we have abstract super class with overridden.

Also the examples you mentioned as being present in jdk as example of factory method is also not pure factory pattern. What you have is a static method. Super class in factory design pattern can be an interface abstract class or a normal java class. Abstract factory pattern implementation java classes implementing abstract factory pattern for global car factory.

In essence the factory pattern is an abstract class or interface that specifies a method to produce something. In abstract factory pattern an interface is responsible for creating a factory of related objects without explicitly specifying their classes. Abstract factory defines an interface for creating all distinct products but leaves the actual product creation to concrete factory classes. Abstract factory design pattern example.

First wee have to write all separate car factories for different locations.