Windsor Ioc container: How to register that certain constructors take different implementation of an interface

问题

I have lots of classes that take an IMyService as a constructor argument.

e.g.

ClassA(IMyservice myservice)
// this should take a Concrete1 for IMyService

ClassB(IMyservice myservice)
// this should take a Concrete2 for IMyService

How do I do my registration so that ClassB gets a Concrete2 and ClassA gets a Concrete1?

Plus, is there a way to make one the default and only specify the instances that deviate from the default? (As the majority will take a Concrete1 and only a small number will take a Concrete2.)

I am using the fluent interface, NOT the XML configuration.

回答1:

Use Service Overrides:

var container = new WindsorContainer();
container.Register(
    Component.For<IMyService>().ImplementedBy<Concrete1>().Named("C1"),
    Component.For<IMyService>().ImplementedBy<Concrete2>().Named("C2"),
    Component.For<ClassA>().ServiceOverrides(ServiceOverride.ForKey("service").Eq("C1")),
    Component.For<ClassB>().ServiceOverrides(ServiceOverride.ForKey("service").Eq("C2"))
);

来源：https://stackoverflow.com/questions/7849692/windsor-ioc-container-how-to-register-that-certain-constructors-take-different