Design Patterns: Let's talk about Factory Method Pattern in C#!

The Factory Method Pattern is a creational design pattern that provides an interface for creating objects in a super flexible and reusable way. It allows subclasses to decide which class to instantiate, promoting better scalability and reducing tight coupling.

📌 What is the Factory Method Pattern?

The Factory Method Pattern lets a class delegate the responsibility of instantiating objects to its subclasses, instead of using a direct constructor call (e.g., new).

🎯 When to Use It?

• When the exact type of the object isn't known beforehand.
• When you want to centralize the creation logic while maintaining flexibility.
• When dealing with families of related products.

🔧 Implementing in C#

1️⃣ Define the Product Interface

Start by defining an interface or abstract class for the objects being created

2️⃣ Create Concrete Products

Next, implement concrete classes for the products:

3️⃣ Define the Factory Method

Create an abstract class or interface for the factory and define a method for creating products:

4️⃣ Implement Concrete Factories

Provide specific implementations for creating the desired objects

5️⃣ Example Usage

Use the factories to create objects without needing to know their concrete classes:

Output:

📚 Benefits of the Factory Method Pattern

✅ Provides flexibility by decoupling object creation from the client.

✅ Follows the Open/Closed Principle—easy to add new types of products.

✅ Simplifies the testing of creation logic.

⚠️ Considerations

• Introduces more classes, which can increase complexity.
• Overhead may not be worth it for simpler scenarios.

💬 Have you used the Factory Method Pattern in your projects? Share your experiences and favorite use cases in the comments! 🚀

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