C# 抽象工厂与统一

我有一个简单的抽象工厂实现：

  public abstract class ICarFactory{
    public abstract ISportsCar CreateSportCar();
    public abstract IFamilyCar CreateFamilyCar();
}

public abstract class ISportsCar {        
    public abstract void Accelerate();
}

public abstract class IFamilyCar  {
    public abstract void Accelarete();
}

public class BMWFactory : ICarFactory {
    public override ISportsCar CreateSportCar() {
        return new BMWi7();
    }

    public override IFamilyCar CreateFamilyCar() {
        return new BMWM5();
    }
}

public class WolksvagenFactory : ICarFactory {

    public override ISportsCar CreateSportCar() {
        return new WVGolfR();
    }

    public override IFamilyCar CreateFamilyCar() {
        return new WVGolf();
    }
}

public class BMWi7 : ISportsCar {
    public override void Accelerate() {
        Console.WriteLine(this.ToString() + "accelerated.");
    }
}

public class BMWM5 : IFamilyCar {

    public override void Accelarete() {
        Console.WriteLine(this.ToString() + "accelerated.");
    }
}

public class WVGolfR : ISportsCar {

    public override void Accelerate() {
        Console.WriteLine(this.ToString() + "accelerated.");
    }
}

public class WVGolf : IFamilyCar {
    public override void Accelarete() {
        Console.WriteLine(this.ToString() + "accelerated.");
    }
}

客户端代码如下所示：

 class Program
{


    static void Main(string[] args)
    {
        ISportsCar sportsCar = GetFactory().CreateSportCar();
        sportsCar.Accelerate();

    }

    static ICarFactory GetFactory()
    {
        string userLocation;
        userLocation = "Hamburg"; //Get user location from user settings

        if (userLocation == "Hamburg")
        {
            return new BMWFactory();
        }
        else
        {
            return new WolksvagenFactory();
        }
    }


}

是否可以使用Microsoft.Practices.Unity实现“GetFactory（）”方法完成的工作

我花了很多时间研究这个问题。但是我找不到有用的东西。

这是可能的

在unity容器中用名称注册您的汽车工厂

_container.RegisterType<ICarFactory, BMWFactory>("Hamburg");
_container.RegisterType<ICarFactory, WolkswagenFactory>("Wolfsburg");

\u container.RegisterType（“汉堡”）；
_容器注册类型（“沃尔夫斯堡”）；

然后更改方法以使用unity容器返回工厂实例

return _container.Resolve<ICarFactory>(userLocation);

return\u container.Resolve（userLocation）；

您可以通过在每个位置注册一组特定工厂和一个默认工厂来实现命名注册：

_container = new UnityContainer();      
//Register location specific factories
_container.RegisterType<ICarFactory,BMWFactory>("Hamburg");
...
//Register the default factory
_container.RegisterType<ICarFactory,WolksvagenFactory>();

---

看小提琴

这太棒了。非常感谢。谢谢，这太棒了。

static ICarFactory GetFactory()
{
    string userLocation;
    userLocation = "Hamburg"; //Get user location from user settings

    //try get specific factory for location
    if(_container.IsRegistered<ICarFactory>(userLocation)){         
        return _container.Resolve<ICarFactory>(userLocation);
    }
    //if not found, get default factory
    return _container.Resolve<ICarFactory>();   
}