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 objects without exposing the creation logic to the client and the client uses the same common interface to create a new type of object.

How many types of design patterns are there?

Types of Design Patterns As per the design pattern reference book Design Patterns – Elements of Reusable Object-Oriented Software , there are 23 design patterns which can be classified in three categories: Creational, Structural and Behavioral patterns.

What are the main design patterns?

There are five well-known design patterns possible to implement in a wide scope of programming languages:

• Abstract Factory Pattern.
• Builder Pattern.
• Factory Method Pattern.
• Prototype Pattern.
• Singleton Pattern.

Why do we need factory design pattern?

Factory design pattern is used to create objects or Class in Java and it provides loose coupling and high cohesion. Factory pattern encapsulate object creation logic which makes it easy to change it later when you change how object gets created or you can even introduce new object with just change in one class.

Why to use factory pattern?

The main reason for which the factory pattern is used is that it introduces a separation between the application and a family of classes (it introduces weak coupling instead

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.

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 objects without exposing the creation logic to the client and the client uses the same common interface to create a new type of object.

What is factory pattern C++?

Factory Method in C++ Factory method is a creational design pattern which solves the problem of creating product objects without specifying their concrete classes. Factory Method defines a method, which should be used for creating objects instead of direct constructor call ( new operator).

What is benefit of factory pattern?

Advantage of Factory Design Pattern Factory Method Pattern allows the sub-classes to choose the type of objects to create. It promotes the loose-coupling by eliminating the need to bind application-specific classes into the code.

How does the factory design pattern work in C #?

That method will create and return different types of objects based on the input parameter, it received. In the Factory Design pattern, we create an object without exposing the creation logic to the client and the client will refer to the newly created object using a common interface.

How is the factory method related to object creation?

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.

Which is the default implementation of the factory method?

Creator This is an abstract class and declares the factory method, which returns an object of type Product. This may also define a default implementation of the factory method that returns a default ConcreteProduct object. This may call the factory method to create a Product object.

Which is an example of a factory design pattern?

The basic principle behind the factory design pattern is that, at run time, we get an object of similar type based on the parameter we pass. Let us understand the Factory Design Pattern with one simple example. We are going to develop an application for showing the credit card details. Please have a look at the following diagram.