Abstract-Factory

🔨 Abstract factory

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

Applicability

We use the Abstract Factory pattern when :

• System should be independent of how its products are created, composed, and represented.
• System should be configured with one of multiple families of products.
• Family of related product objects is designed to be used together, and you need to enforce this constraint.
• We want to provide a class library of products, and you want to reveal just their interfaces, not their implementations.

General Structure

Example

Consider, you are building a house and you need doors. Based on your needs you might get a wooden door from a wooden door shop, iron door from an iron shop or a PVC door from the relevant shop. Plus you might need a guy with different kind of specialities to fit the door, for example a carpenter for wooden door, welder for iron door etc. As you can see there is a dependency between the doors now, wooden door needs carpenter, iron door needs a welder etc.