Abstract Factory Method Design Pattern C Example
The factory method pattern is widely used in c code.
Abstract factory method design pattern c example. The factory method pattern is also known as virtual constructor. Factory methods can be recognized by creation methods which create objects from concrete classes but return them as objects of abstract type or interface. Abstract factory design pattern in c. This factory is also called as factory of factories.
The factory design pattern in c is used to replace class constructors abstracting the process of object generation so that the type of the object instantiated can be determined at run time. Abstract products declare interfaces for a set of distinct but related products which make up a product family. Each abstract product chairsofa must be implemented in all given variants victorianmodern. This article aims at understanding and implementing abstract factory pattern in c.
This type of design pattern comes under creational pattern as this pattern provides one of the best ways to create an object. 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. The factory method pattern uses inheritance and relies on a subclass to handle the desired object instantiation. Free source code and uml.
Abstract factory pattern in useful when the client needs to create objects which are somehow related. In this article we will cover another software design pattern in c application development abstract factory. Before and after back to abstract factory description. In other words subclasses are responsible to create the instance of the class.
If we need to create the family of related or dependent objects then we can use abstract factory pattern. The abstract factory interface declares a set of methods for creating each of the abstract products. 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. In this article you will learn how to implement factory method design pattern in c and net.
In my previous article we covered factory method design pattern in c. Its very useful when you need to provide a high level of flexibility for your code. Abstract factory patterns work around a super factory which creates other factories. Concrete products are various implementations of abstract products grouped by variants.