Register the same type to multiple interfaces

Question

It is possible to register one type to multiple interfaces?

I have class that implement two interfaces

MyService : IService1, IServier2 {}


        

Answer 1

I based my answer on @StephenTunney's answer, but I couldn't get his to work.

You can do this by config as well:

<register type="MyService" name="MyServiceName">
    <lifetime type="singleton" />
</register>
<register type="IService1" mapTo="MyService">
    <lifetime type="singleton" />
</register>
<register type="IService2" mapTo="MyService">
    <lifetime type="singleton" />
</register>

Note that the name="MyServiceName" is optional and only required if you plan on doing named instances.

Answer 2

You can do this by config as well:

<register type="MyService" name="MyServiceName">
    <lifetime type="singleton" />
</register>
<register type="IService1" mapTo="MyService" />
<register type="IService2" mapTo="MyService" />

Answer 3

I usually write this:

      .RegisterType<MyService>(CreateLifeTime())
      .RegisterType<IService1, MyService>()
      .RegisterType<IService2, MyService>();

Of course with a TransientLifetimeManager, you still will get two different instances of MyService.

The code above works with PerResolveLifetimeManager, PerResolveLifetimeManager, PerThreadLifetimeManager.