Windsor为多个接口注册单例组件

Question

I want to register one class with 2 interfaces in Castle.Windsor.

does this code work... Will I have only one instance for both interfaces...

Component.For<IEnvironment>().ImplementedBy<OutlookEnvironment>().LifestyleSingleton()
Component.For<IOutlookEnvironment>().ImplementedBy<OutlookEnvironment>().LifestyleSingleton()

I need to double check this because my environment should always be the same instance...

So when I resolve using the IEnvironment interface I should get the same instance as when using IOutlookEnvironment to resolve the component

Answer 1

You need to use the use multi-generic-parameter overload of the Component.For method

Component.For<IEnvironment, IOutlookEnvironment>()
         .ImplementedBy<OutlookEnvironment>()
         .LifestyleSingleton()

See also in the documentation: Registering component with multiple services section.