IFacilityTypeDescriptionBuilder

IFacilityTypeDescriptionBuilder

在阅读完这里的问题后;并尝试遵循http://docs.castleproject.org/(X(1)S(0w0clnf021ee0445lol02255))/Default.aspx?Page=Typed-Factory-Facility-interface-based-factories&NS=Windsor&AspxAutoDetectCookieSupport=1中提供的说明,我必须在某处缺少链接。

总结一下我正在尝试做的事情:

我有一个工厂接口:

public interface IFacilityTypeDescriptionBuilderFactory
{
    IFacilityTypeDescriptionBuilder CreateFacilityTypeDescriptionBuilder(Facility facility);
}


这个工厂的目的是根据提供的设施的特定业务规则和属性值,将返回其他类型。显然它将是IFacilityTypeDescriptionBuilder类型,但是具体类型将由工厂确定(但不由其实例化)。

为此,最直接的实现是注册IFacilityTypeDescriptionBuilderFactory服务,执行.ImplementedBy,然后仅让工厂实例化返回的对象。但是这样做时,我将不得不使用/引用/对服务定位器具有依赖性,所以我宁愿不这样做。

根据上面的帖子;通过使用ITypedFactoryComponentSelector,我应该能够实现我想做的事情-并向Windsor指示如何做。不需要IFacilityTypeDescriptionBuilderFactory的具体实现。

这是我目前正在做的事情:

        args.Container.AddFacility<TypedFactoryFacility>();

        args.Container.Register(
            Component.For<IFacilityTypeDescriptionBuilderFactory>()
                     .AsFactory()
            );

        args.Container.Register(
            Component.For<ITypedFactoryComponentSelector>()
                     .ImplementedBy<FacilityTypeDescriptionBuilderComponentSelector>()
            );


然后是我的ComponentSelector:

public class FacilityTypeDescriptionBuilderComponentSelector : DefaultTypedFactoryComponentSelector
{
    protected override System.Type GetComponentType(System.Reflection.MethodInfo method, object[] arguments)
    {
        if (method.Name == "CreateFacilityTypeDescriptionBuilder" && arguments.Length == 1 && arguments[0] is Facility)
        {
            var facility = arguments[0] as Facility;
            switch (facility.FacilityTypeId)
            {
                case 1:
                    return typeof (RestaurantFacilityTypeDescriptionBuilder);
                default:
                    return typeof (EmptyFacilityTypeDescriptionBuilder);
            }
        }

        return base.GetComponentType(method, arguments);
    }
}


有了所有这些之后,我现在尝试断言所有内容均已正确连接。事实并非如此;在此示例中,“ b”最终为NULL。

        var f = new Facility();
        f.FacilityTypeId = 1;
        var b = args.Container.Resolve<IFacilityTypeDescriptionBuilderFactory>().CreateFacilityTypeDescriptionBuilder(f);
        Assert.IsNotNull(b as RestaurantFacilityTypeDescriptionBuilder, "b");


根据我的判断,从未调用ComponentSelector-或至少没有以我期望的方式调用它。我得到的错误是这样的:

找不到支持服务XYZ.Common.Builders.IFacilityTypeDescriptionBuilder的组件

因此,基本上,温莎意识到必须从.CreateFacilityTypeDescriptionBuilder(f)方法调用中返回IFacilityTypeDescriptionBuilder-只是不知道如何。

谁能指出我在这里所缺少的东西吗?

最佳答案

你需要

.AsFactory(f => f.SelectedWith<FacilityTypeDescriptionBuilderComponentSelector>())

09-26 23:46