using System;

using System.Linq;

using System.Collections.Generic;

using System.Reflection;

using Autofac;

​

namespace Example

{

    public interface ISettings

    {

        string Setting1 { get; }

        string Setting2 { get; }

    }

    public class GlobalSettings : ISettings

    {

        public string Setting1 { get { return "Foo"; } }

        public string Setting2 { get { return "Bar"; } }

    }

​

    public class Application

    {

        private readonly ISettings _settings;

        public Application(ISettings settings)

        {

            _settings = settings;

        }

        public void Run()

        {

            Console.WriteLine("Setting1 = '{0}'", _settings.Setting1);

            Console.WriteLine("Setting2 = '{0}'", _settings.Setting2);

        }

    }

    public class Program

    {

        public static IContainer CompositionRoot()

        {

            var builder = new ContainerBuilder();

            builder.RegisterType<GlobalSettings>().As<ISettings>().SingleInstance();

            builder.RegisterType<Application>();

            return builder.Build();

        }

​

        public static void Main()

        {

            CompositionRoot().Resolve<Application>().Run();

        }

    }

}