What is the difference between the decorator pattern and the factory pattern?

What is the difference between the decorator pattern and the factory pattern?

The decorator pattern is used to add new functionality to an object dynamically, while the factory pattern is used to create objects without specifying the exact class of the object that will be created.

Can you give me an example of each pattern?

Sure! For the decorator pattern, think of a coffee shop where you can add milk or sugar to your coffee. Each addition is a decorator. For the factory pattern, consider a car factory that produces different types of cars based on the order, without the customer needing to know the specifics of how each car is built.

When should I use one pattern over the other?

Use the decorator pattern when you want to add responsibilities to individual objects without affecting others. Use the factory pattern when you need to create objects in a way that allows for flexibility and encapsulation of the instantiation process.

Are there any scenarios where both patterns could be used together?

Yes, you can use both patterns together. For example, a factory can create objects that are then decorated with additional features, allowing for a flexible and extensible design.