What does the Abstract Factory class do?

The book Design Patterns: Elements of Reusable Object-Oriented Software states that an Abstract Factory “provides an interface for creating families of related or dependent objects without specifying their concrete classes”. In other words, this model allows us to create objects that follow a general pattern.

Where is abstract factory pattern used?

The purpose of the Abstract Factory is to provide an interface for creating families of related objects, without specifying concrete classes. This pattern is found in the sheet metal stamping equipment used in the manufacture of Japanese automobiles.

What problem does abstract factory solve?

The Abstract Factory design pattern solves problems like: How can an application be independent of how its objects are created? How can a class be independent of how the objects it requires are created? How can families of related or dependent objects be created?

What problem does abstract factory pattern solve?

What are the advantages of using abstract factory pattern?

The Abstract Factory pattern has the following benefits and liabilities:

• It isolates concrete classes.
• It makes exchanging product families easy.
• It promotes consistency among products.
• Supporting new kinds of products is difficult.

What is the difference between factory pattern and abstract factory pattern?

The main difference between factory pattern and abstract factory pattern is that the factory pattern provides a method of creating objects without specifying the exact class used to create it while the abstract factory pattern provides a method to combine a group of individual factories without specifying their …

Which pattern creates duplicates?

Prototype pattern refers to creating duplicate object while keeping performance in mind. This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object.

Why do we need abstract factory design pattern?

Abstract factory pattern implementation provides us a framework that allows us to create objects that follow a general pattern. So at runtime, abstract factory is coupled with any desired concrete factory which can create objects of desired type. UML class diagram example for the Abstract Factory Design Pattern.

What are disadvantages of abstract factory design pattern?

However, the main drawback of the abstract factory pattern, like most design patterns, is that there is an increase in complexity in the code, and an increase in the number of classes required for the code. Although, this disadvantage is well known when applying design patterns for it is the price to pay for gaining abstraction in the code.

When to use factory pattern?

Factory method pattern can be used when there is a need to generate objects that belong to specific family. Along side this requirement, you also want to keep the decisions made regarding object instantiation in one place.

What is factory method design pattern?

Factory Design Pattern. Factory method is a creational pattern used for creating objects.Instead of directly creating class objects by using constructors clients uses the the Factory method to create objects.The client is not aware of the specific class object which it creates by calling the Factory method.