The Decorator design pattern
The Decorator pattern allows us to dynamically add new functionality to an object by wrapping it with one or more decorator objects. This pattern allows us to add additional behaviors to objects at runtime without modifying the existing code, which helps us follow the Open-Closed principle. This pattern enables us to separate responsibilities into multiple smaller pieces. It is a simple but powerful pattern.
In this section, we explore how to implement this pattern in the traditional way and how to leverage an open-source library named Scrutor to help us create powerful dependency injection-ready decorators.
Goal
The Decorator pattern aims to extend an existing object at runtime without changing its code. Moreover, the decorated object should remain unaware of the decoration process, making this approach an excellent fit for complex or long-lasting systems that necessitate evolution.
The Decorator pattern makes it easier to encapsulate...
