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

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

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.

What type of design pattern is factory?

Factory method is a creational design pattern, i.e., related to object creation. In Factory pattern, we create object without exposing the creation logic to client and the client use the same common interface to create new type of object.

What is abstract factory design?

Abstract Factory is a creational design pattern that lets you produce families of related objects without specifying their concrete classes.

Is factory a creational design pattern?

Factory Method is a creational design pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.

What is the use of abstract factory design pattern?

The intent in employing the pattern is to insulate the creation of objects from their usage and to create families of related objects without having to depend on their concrete classes. This allows for new derived types to be introduced with no change to the code that uses the base class.

What are the types of factory pattern?

We also discussed their four different types, i.e., Singleton, Factory Method, Abstract Factory and Builder Pattern, their advantages, examples and when should we use them.

How does an Abstract Factory work?

Abstract Factory patterns work around a super-factory which creates other factories. This factory is also called as factory of factories. ... In Abstract Factory pattern an interface is responsible for creating a factory of related objects without explicitly specifying their classes.

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 the abstract factory pattern?

• What is the Abstract Factory Pattern. The Abstract Factory Pattern is used when you want to return several related classes of objects, each of which can return several different objects on request.

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.