How to register dependencies with Windsor that are in different layers of the application?

Question

How to register dependencies with Windsor that are in different layers of the application?

I don’t want to keep referencing all layers of the application in the presentation layer as most do around.

I have the following error that I know why it happens, I wonder if someone could assist to register these dependencies that are in other layers of the application without having to keep referencing everything in the presentation layer.

Can’t create 'Blognetapp.Implementation.Serviceappusuario' as it has dependencies to be satisfied.

'Blognetapp.Implementation.Serviceappusuario' is Waiting for the following dependencies: - Service 'Blognetdomain.Interfaces.Services.Iusuarioservice' which was not Registered.

I’m using C# NET MVC Windsor container.

namespace BlogNet.Windsor
{
    public class PresentationInstaller : IWindsorInstaller
    {
        public void Install(IWindsorContainer container, IConfigurationStore store)
        {
            container.Register(
                Component.For<IServiceAppUsuario>().ImplementedBy<ServiceAppUsuario>(),
                Component.For<IServiceAppRole>().ImplementedBy<ServiceAppRole>(),
                Component.For<IServiceAppQuote>().ImplementedBy<ServiceAppQuote>()
                );
        }
    }
}

As I said before, it is giving error because it is not registering the dependencies that are in another layer. I don’t want to reference the other layers in the presentation layer.

Answer 1

To Composition root - the place where dependencies are registered - is not part of any of the application layers. Hence the name, root.

Therefore, Composition root has (and should) reference all application components, regardless of their layers.