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MediatorRegistrations

Namespace: RA.Utilities.Feature.Generated

MediatorRegistrations is the runtime-side queue that the mediator source generator feeds: every assembly referencing the package emits a module initializer that calls MediatorRegistrations.Add(...) with the DI registrations of its generated Mediator.

🎯 Purpose​

The generated Mediator lives in your assembly, so the runtime package cannot reference it directly. The queue bridges that gap:

  1. At assembly load, the generated module initializer queues a registration callback (AddScoped<Mediator>() plus AddScoped<IMediator>(...)).
  2. Your startup code calls services.AddMediator().
  3. AddMediator applies the queued callbacks, so IMediator resolves to the generated implementation.

⚙️ Members​

public static class MediatorRegistrations
{
    /// <summary>Queues a mediator-registration callback. Called by generated module initializers.</summary>
    public static void Add(Action<IServiceCollection> registration);

    /// <summary>Applies all queued registrations. Called by AddMediator().</summary>
    internal static void ApplyAll(IServiceCollection services);
}

You never call Add yourself — it is for the generated initializer. ApplyAll is invoked by AddMediator().

🧠 Summary​

MediatorRegistrations is the plumbing between the generated Mediator and AddMediator(). Its sibling HandlerRegistrations carries the handler and behavior registrations through the same pattern. See the Generated Mediator guide for the full dispatch story.