Property Injection
Property Injection is a dependency injection pattern where dependencies are provided to a class through public properties or setters after the object is instantiated. It allows for flexible configuration of dependencies at runtime, decoupling the creation of objects from their dependency resolution. This pattern is commonly used in software development to promote loose coupling and testability.
Developers should use Property Injection when dependencies are optional or when they need to set dependencies after object creation, such as in frameworks that support late binding or in scenarios where dependencies might change dynamically. It is particularly useful in unit testing, as it allows for easy mocking of dependencies by setting properties directly, and in plugin architectures where components are loaded and configured at runtime.