What is the method of dependency injection in Delphi IO…

To simplify dependency injection in Delphi, developers can utilize third-party libraries like Spring4D and DelphiMVCFramework. These libraries offer dependency injection functionalities that make it easier for developers to manage dependencies between components.

The method to achieve dependency injection using Spring4D is as follows:

1. Mark the properties that need to be injected using the [TInject] attribute.
2. Register the component that needs to be injected into the container using the GlobalContainer.RegisterComponent method.
3. Use the GlobalContainer.Resolve method to retrieve registered component instances.

The method of implementing dependency injection using DelphiMVCFramework is as follows:

1. The types of components that need to be injected for method registration.
2. Inject dependencies using the InjectDependencies method.
3. How to access instances of registered components

By using the above methodology, it is possible to implement dependency injection in Delphi to efficiently manage dependencies between components, improving the maintainability and testability of the code.