覆盖温莎城堡中的组件注册？哪个容器支持它？ [英] Overriding a component registration in Castle Windsor? Which container supports it?

问题描述

这部分是对尚未回答的同一问题的重复。请参阅此处：如何覆盖在Castle中注册的组件温莎？

this is partially a duplication of the same question which has not been yet answered. See here: How can I override a component registered in Castle Windsor?

由于我无法评论或发布现有问题的任何答案，因此我再次创建了此问题，以希望有人知道看似基本的答案和简单的问题。

Since I cannot comment or post any answers to an existing questions I created this question again in the hope that somebody knows the answer to a seemingly basic and simple question.

请记住：

1. 我不想要创建一个新容器。


2. 我不在乎容器是否不应该用于单元测试。


3. 我不想使用派生容器

如果Castle Windsor无法提供此简单功能，您会建议采用哪种其他容器实现？

If Castle Windsor is not able to provide this simple functionality, what other container implementation would you recommend?

推荐答案

Windsor遵循最后一次注册获胜的约定。但是，如果您没有明确告诉它该组件将被覆盖，它将抛出异常。因此，有两种方法可以覆盖现有组件：

Windsor works with convention that "last registration wins". But, if you have not SPECIFICALLY told it that this component will be overridden, it will throw an exception. So, there are 2 ways to allow existing component to be be overridden:

1. 使用注册组件。IsDefault（） 。这将覆盖现有注册。


2. 使用 .IsFallback（）注册组件。


3. 使用组件的唯一名称- .Named（ NewComponentName）。
>

1. Register component with .IsDefault(). This will override existing registration.
2. Register component with .IsFallback(). This will allow component to be overridden later.
3. Using unique name for component - .Named("NewComponentName").

我个人更喜欢 .IsDefault（）并在集成测试中使用以下简写扩展名：

I personally prefer .IsDefault() and use this shorthand extension in my integration tests:

    public static class WindsorContainerExtensions
    {            
        public static void Override<TService>(this IWindsorContainer container, TService instance) where TService : class
        {
            container.Register(Component.For<TService>().Instance(instance).IsDefault());
        }
    }

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