Abstract Factory patterns work around a super-factory which creates other factories. For our understanding of this pattern, we will take a simple example of different types of Bank Accounts. Typically, when the underlying implementations or mechanisms of object creation vary a lot but those implementations can be placed under the same top level umbrella & you need same public API to access them, there is a good chance that you need Abstract Factory Method design pattern. 2. What Factory Design Pattern Is The Factory Design Pattern is a commonly used design pattern where we need to create Loosely Coupled System. Abstract Factory might store a set of Prototypes from which to clone and return product objects. This tutorial highlights implementing the abstract factory design pattern in your Java projects, focusing on implementation, structure, and helpful examples. Each generated factory can give the objects as per the Factory pattern. Abstract Factory Design Pattern in Java Back to Abstract Factory description Abstract Factory classes are often implemented with Factory Methods, but they can also be implemented using Prototype. Let’s remodel the vending machine as shown in the image below. In Abstract Factory pattern an interface is responsible for creating a factory of related objects without explicitly specifying their classes. In the video, I discuss when and how to implement an abstract factory pattern. Real-time examples This design pattern has been widely used in JDK, such as 1. getInstance() method of java.util.Calendar, NumberFormat, and ResourceBundle uses factory method design pattern. Factory Method: creation through inheritance. A Factory Pattern or Factory Method Pattern says that just define an interface or abstract class for creating an object but let the subclasses decide which class to instantiate. Abstract factory pattern implementation provides us a framework that allows us to create objects that follow a general pattern. Factory Pattern is based on real time factory … Factory Method: Defines an interface for creating an object, but let’s the classes that implement the interface decide which class to instantiate.The Factory method lets a class defer instantiation to subclasses. I recently uploaded a video on YouTube for abstract factory design pattern. Factory Method Pattern. I have also discussed what is the difference between the factory pattern and abstract factory design pattern. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object. So, this is the reason that Abstract Factory Pattern is one level higher than the Factory Pattern. In other words, subclasses are responsible to create the instance of the class. As we previously noted, the abstract factory pattern allows us to easily re-use components as abstract classes and enforce specific concrete subclasses to be used as part of a component family. Abstract Factory Design Pattern Video Tutorial. All the wrapper classes like Integer, Boolean etc, in Java uses this pattern to evaluate the values using valueOf() method. Abstract Factory Pattern by Example. Abstract Factory Pattern says that just define an interface or abstract class for creating families of related (or dependent) objects but without specifying their concrete sub-classes.That means Abstract Factory lets a class returns a factory of classes. Basically, it comes under Creational Pattern and it is used to create instance and reuse it. So at runtime, abstract factory is coupled with any desired concrete factory which can create objects of desired type. Abstract Factory Pattern . 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