Software Design Patterns Questions
The Factory Method design pattern is a creational design pattern that provides an interface for creating objects, but allows subclasses to decide which class to instantiate. It encapsulates the object creation logic in a separate method, called the factory method, which is responsible for creating the objects. This pattern promotes loose coupling by ensuring that the code depends on abstractions rather than concrete implementations.
In the Factory Method pattern, a superclass defines the factory method, which is typically declared as an abstract method. Subclasses of the superclass then implement this factory method to create objects of different types. This allows the client code to create objects without knowing the specific class of the object being created.
The Factory Method pattern is useful in scenarios where the client code needs to create objects of different types, but the exact type of the object is determined at runtime. It provides a flexible way to create objects and allows for easy extension by adding new subclasses without modifying the existing code.
Overall, the Factory Method design pattern promotes code reusability, flexibility, and maintainability by encapsulating object creation logic and providing a consistent interface for creating objects.