温莎城堡 - 解决一个通用的实施，基本类型 [英] Castle Windsor - Resolving a generic implementation to a base type

问题描述

我试图用温莎作为一家工厂根据 XAbstractBase 的亚型（在我的情况下，一个抽象的消息的基类）提供规范的实现。

I'm trying to use Windsor as a factory to provide specification implementations based on subtypes of XAbstractBase (an abstract message base class in my case).

我有类似下面的代码：

public abstract class XAbstractBase { }
public class YImplementation : XAbstractBase { }
public class ZImplementation : XAbstractBase { }

public interface ISpecification<T> where T : XAbstractBase
{
    bool PredicateLogic();
}

public class DefaultSpecificationImplementation : ISpecification<XAbstractBase>
{
    public bool PredicateLogic() { return true; }
}

public class SpecificSpecificationImplementation : ISpecification<YImplementation>
{
    public bool PredicateLogic() { /*do real work*/ }
}

我的组件注册代码如下所示：

My component registration code looks like this:

container.Register(
    AllTypes.FromAssembly(Assembly.GetExecutingAssembly())
    .BasedOn(typeof(ISpecification<>))
    .WithService.FirstInterface()
)

这时候我尝试解决正常工作 ISpecification< YImplementation> ; 。它正确解析 SpecificSpecificationImplementation

This works fine when I try to resolve ISpecification<YImplementation>; it correctly resolves SpecificSpecificationImplementation.

然而，当我尝试解决 ISpecification< ZImplementation> 温莎抛出异常：

However, when I try to resolve ISpecification<ZImplementation> Windsor throws an exception:

"No component for supporting the service ISpecification'1[ZImplementation, AssemblyInfo...] was found"

温莎是否支持解决通用实现到基类，如果没有更具体实施注册？

Does Windsor support resolving generic implementations down to base classes if no more specific implementation is registered?

推荐答案

请参阅的这个帖子。

好吧，我现在看到你在做什么错。您有没有服务 ISpecification< ZImplementation方式> ，因此它并不奇怪，温莎无法解决它。

Ok, I see now what you're doing wrong. You have no service for ISpecification<ZImplementation>, hence it's not surprising that Windsor can't resolve it.

这不是一个问题，温莎在所有。

It's not a Windsor issue at all.

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