jsanjuan2016

public class Machine
{
    public Machine()
    {
    } 

    private string Components { get; set; }

    public List<string> GetComponents()
    {

jsanjuan2016

private readonly ICustomers _service;
public Client()
{
    //Al estar accesibles de forma pública las implementaciones, un programador "despistado"
    //podría saltarse el flujo de inversión de control y crear los objetos "a mano" mediante new
    this._service = new Customers(new CustomerRepository());
}

jsanjuan2016

services.AddTransient<IShapeFactory<Rectangle>, RectangleFactory>();
services.AddTransient<IShapeFactory<Circle>, CircleFactory>();

jsanjuan2016

public class RectangleParameters : IShapeParameters
{
    public double width { get; set; }
    public double height { get; set; }
}

jsanjuan2016

private readonly IShape _rectangle;
private readonly IShape _circle;

public WindowManager(IShape rectangle, IShape circle)
{
    this._rectangle = rectangle ?? throw new ArgumentNullException(nameof(rectangle));
    this._circle = cirlce ?? throw new ArgumentNullException(nameof(circle));
}

jsanjuan2016

services.AddTransient<IShape, Rectangle>();
services.AddTransient<IShape, Circle>();

jsanjuan2016

public interface IShapeParameters { }

jsanjuan2016

public class WindowManager
{
    private readonly IShapeFactory<Rectangle> _rectangleFactory;
    private readonly IShapeFactory<Cirlce> _CircleFactory;

    public WindowManager(IShapeFactory<Rectangle> rectangleFactory, IShapeFactory<Cirlce> CirlceFactory)
    {
        this._rectangleFactory = rectangleFactory ?? throw new ArgumentNullException(nameof(rectangleFactory));
        this._CircleFactory = CirlceFactory ?? throw new ArgumentNullException(nameof(CirlceFactory));
    }

jsanjuan2016

public interface IShapeFactory<T> where T : IShape
{
    IShape CreateShape();
}

jsanjuan2016

private readonly IShape<Rectangle> _rectangle;
private readonly IShape<Circle> _circle;

public WindowManager(IShape<Rectangle> rectangle, IShape<Circle> circle)
{
    this._rectangle = rectangle ?? throw new ArgumentNullException(nameof(rectangle));
    this._circle = circle ?? throw new ArgumentNullException(nameof(circle));
}