Abstarct Model V Abstract Factory

Abstract factory factory 1 factory 2 factory n so simply you have to pass concrete factory object to get respective factory methods and definitely intern class calls methods based on this factory instance.

Abstarct model v abstract factory. The factories in turn abstracts the way objects are created. It is a different level of abstraction but the factory method helps to define differences between subclasses when they are created while the abstract method may be concerned with deploying entirely unrelated though similar classes as a whole. This factory is also called as factory of factories. The main difference between a factory method and an abstract factory is that the factory method is a single method and an abstract factory is an object.

The factory method is just a method it can be overridden in a subclass whereas the abstract factory is an object that has multiple factory methods on it. Design global car factory using abstract factory pattern. Each factory type corresponds to a certain product. You will often hear the abstract factory design pattern referred to as a factory of factories.

This structural code demonstrates the abstract factory pattern creating parallel hierarchies of objects. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object. From implementation point of view the key difference between the factory method and abstract factory patterns is that factory method is just a method to create objects of a single type while abstract factory is an object to create families of objects. Rest is same as in factory.

Each concrete factory sub class implements the factory methods for a particular family of products. An abstract factory is a class with several factory methods. So this way you get all the products of required group. Abstract factory patterns work around a super factory which creates other factories.

Object creation has been abstracted and there is no need for hard coded class names in the client code. Now imagine if our car maker decides to go global. So basically an abstract factory class has a collection of different factory methods to create different desired concrete objects. The abstract factory pattern can be considered as an.

Abstract factory is a creational design pattern which solves the problem of creating entire product families without specifying their concrete classes. In factory design pattern we discussed how to abstract the car making process for various car model types and their additional logic included in car making process. Abstract factory defines an interface for creating all distinct products but leaves the actual product creation to concrete factory classes.