How to get if the object is already retrieved in inject

Question

Is it possible to know that particular dependency already has been satisfied by ninject kernel? To be clear:

Let's suppose we have this module:

Bind<IA>().To<A>();
Bind<IB>().To<B>();

And some "client"-code:

var a = kernel.Get<IA>();

// how to get here "true" for assumption: "IA was requested (once)"
// and "false" for: "IB was not requested ever"

Answer 1

You could use .Before* and .After* in the fluent bindings to hook in a call to something to mark it used. Or you could look at the IDisposable hooks (see the tests in the source download).

There's good background info in http://kohari.org/2009/03/06/cache-and-collect-lifecycle-management-in-ninject-20/ too

Answer 2

The answer was found here: http://stackoverflow.com/questions/1179148/in-ninject-how-can-i-run-custom-code-on-an-object-after-it-is-created-with-bind/1230969#1230969