Abstract Factory Pattern In Java Javarevisited

To support location specific features begin with modifying our carjava class with another attribute location.

Abstract factory pattern in java javarevisited. Abstract factory pattern can be implemented using factory method and singleton design pattern in java. In this example well create two implementations of the factory method design pattern. Abstract factory design pattern example. Dependency injection though both dependency injection and factory pattern look similar in a sense that both creates an instance of a class and also promotes interface driven programming rather than hard coding implementation class there are some subtle differences between the factory pattern and dependency injection pattern which well discuss next.

There is a class name schemafactory. After that well manage access to them using an abstract factory abstractfactory. 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. Abstract factory patterns work around a super factory which creates other factories.

In this post we will talk and learn about the abstract factory pattern in java. Sample abstract factory design pattern implementation in java api xml api implements abstract factory. Abstract factory pattern is almost similar to factory pattern except for the fact that its more like a factory of factories. An example of the abstract factory design pattern in the jdk is the newinstance of javaxxmlparsersdocumentbuilderfactory class.

This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object. Abstract factory pattern is almost similar to factory pattern is considered as another layer of abstraction over factory pattern. Abstract factory pattern we can consider as another layer of abstraction over factory pattern. Abstract factory defines an interface for creating all distinct products but leaves the actual product creation to concrete factory classes.

In abstract factory pattern an interface is responsible for creating a factory of related objects without explicitly specifying their classes. Abstract factory pattern implementation java classes implementing abstract factory pattern for global car factory. This acts as a factory and supports implemenation of multiple schemas using abstract factory design pattern. First wee have to write all separate car factories for different locations.

Abstract factory patterns work around a super factory which creates other factories. Thats all on difference between abstract factory and factory design pattern in java.