Ep 46 Decorator Pattern With Dependency Injection In Net Core What is dependency injection (di) dependency injection involves providing a class with its required dependencies from an external source rather than having the class create them itself. this helps to decouple the object creation process from the caller, leading to a more modular and flexible system. What is dependency injection (di) dependency injection involves providing a class with its required dependencies from an external source rather than having the class create them itself.
Ep 46 Decorator Pattern With Dependency Injection In Net Core Contrary to popular belief, the decorator pattern is fairly easy to implement using the built in container. by using the extension methods in the linked answer, registering decorators becomes as simple as this:. The decorator pattern is a structural design pattern that allows you to introduce some new behavior to an existing class, without affecting the original class. it achieves this by enclosing a class with one (or more) decorator classes, which delegate method calls to the linked class. you can think of the decorator pattern as a clothing layering. Motivation for decorating dependency injection. in a recent project, we used an external library that made use of dependency injection for easier customization of its default implementation. the default implementation was enough for our needs with just one minor tweak required. the addition of a parameter to an url generated by the library. The decorator pattern. the decorator design pattern is one of the original well known gang of four design patterns. it allows you take an object with existing functionality, and layer extra behaviour on top. for example, in a recent post, steve smith discusses a classic example of adding caching functionality to an existing service.
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