Traditional Composition
Traditional Composition is a software design principle that emphasizes building complex objects or systems by combining simpler, reusable components through direct instantiation and dependency injection, rather than inheritance. It is a fundamental concept in object-oriented programming (OOP) that promotes code reusability, flexibility, and maintainability by favoring 'has-a' relationships over 'is-a' relationships. This approach helps reduce tight coupling between classes and makes systems easier to test and modify.
Developers should learn and use Traditional Composition when designing object-oriented systems to create modular, scalable, and maintainable code, especially in scenarios where inheritance hierarchies become complex or rigid. It is particularly useful in enterprise applications, microservices architectures, and frameworks that rely on dependency injection, as it allows for easier unit testing and swapping of components. By applying this principle, developers can avoid the pitfalls of deep inheritance trees and promote better separation of concerns.