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Editorial Team
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Asked: 2026-05-12T14:30:18+00:00

I’m building a message broker with NInject, and I need to find all instances

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I’m building a message broker with NInject, and I need to find all instances in the container that implement Consumes, an interface that marks the class as being able to consume a particular message type.

Is this scenario supported?

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1 Answer

  1. Editorial Team

    Answer from Nate:

    Multi-resolution (via GetAll) is
    currently not polymorphic. That means
    that it will only consider bindings
    from the exact interface you specify.
    If you do this:

    kernel.Bind<IWorker>().To<WorkerA>();
kernel.Bind<IWorker>().To<WorkerB>();
kernel.Bind<IWorker>().To<WorkerC>();

    And then:

    kernel.GetAll<IWorker>();

    It will return 3 items. However, even
    if IWorkerA, IWorkerB, and
    IWorkerC implement IWorker,
    Ninject will not look at bindings from
    IWorkerA to WorkerA when you ask
    for IWorker.

    See :

    http://groups.google.com/group/ninject/browse_thread/thread/7b6afa06099bc97a#

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