unity 解析多个类 [英] Unity Resolve Multiple Classes

问题描述

如何让 microsoft unity 为给定的接口类型构建"一个类列表.

How do I get microsoft unity to 'construct' a list of classes for a given interface type.

非常简单的例子:

  List<IShippingCalculation> list = new List<IShippingCalculation>();
  list.Add(new NewYorkShippingCalculation());
  list.Add(new FloridaShippingCalculation());
  list.Add(new AlaskShippingCalculation());

  //Not What I want
  public void calcship(List<IShippingCalculation> list)
  {
    var info = new ShippingInfo(list);
    info.CalculateShippingAmount(State.Alaska)
  }

  //Somehow in unity, must i do this for all the concrete classes? 
  //how does it know to give a list.
  Container.RegisterType<IShippingInfo,new AlaskaShippingCalculation()>();??

  //What I want
  public void calcship(IShippingInfo info)
  {
    info.CalculateShippingAmount(State.Alaska)
  }

谢谢！

推荐答案

如果您使用的是 Unity 2，您可以使用 ResolveAll

If you are using Unity 2 you can use ResolveAll<T>

Container.RegisterType<IShippingInfo,FloridaShippingCalculation>("Florida");
Container.RegisterType<IShippingInfo,NewYorkShippingCalculation>("NewYork");
Container.RegisterType<IShippingInfo,AlaskaShippingCalculation>("Alaska");

IEnumerable<IShippingInfo> infos = Container.ResolveAll<IShippingInfo>();

您必须为每个注册命名，因为 ResolveAll 只会返回命名的注册.

You have to give a name to every registration because ResolveAll will only return named registrations.

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