What is factory and abstract factory pattern demonstrate with 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.
What design pattern should be used to abstract?
This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object. In Abstract Factory pattern an interface is responsible for creating a factory of related objects without explicitly specifying their classes.
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.
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 is factory and abstract factory pattern?
Factory Method pattern is responsible for creating products that belong to one family, while Abstract Factory pattern deals with multiple families of products. Factory Method uses interfaces and abstract classes to decouple the client from the generator class and the resulting products.
What design issues does abstract factory pattern address?
The Abstract Factory design pattern describes how to solve such problems: Encapsulate object creation in a separate (factory) object. That is, define an interface (AbstractFactory) for creating objects, and implement the interface.
What is factory and abstract factory design pattern?
Abstract Factory design pattern is one of the Creational pattern. Abstract Factory patterns work around a super-factory which creates other factories. Abstract factory pattern implementation provides us with a framework that allows us to create objects that follow a general pattern.
Is Abstract Factory useful?
You need abstract factory when different polymorphic classes has different instantiation procedure. And you want some module to create instances and use them, without knowing any details of object initialization. For example – you want to create Java objects doing some calculations.
What is the Factory pattern used for?
The Factory Method pattern is a design pattern used to define a runtime interface for creating an object. It’s called a factory because it creates various types of objects without necessarily knowing what kind of object it creates or how to create it.
When would you use abstract factory over factory method?
The difference is that the intended purpose of the class containing a factory method is not to create objects, while an abstract factory should only be used to create objects.
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 …
What is difference between abstract factory and factory design pattern?
1) One more difference between Abstract Factory and Factory design pattern is that AbstractFactory pattern uses composition to delegate responsibility of creating object to another class while Factory design pattern uses inheritance and relies on derived class or sub class to create object.