NServiceBus-and-SignalR

AuctionGrowl.js

/// <reference path="~/scripts/lib"/>
$(function() {
    var auctionHub = $.connection.auctionHub;
    auctionHub.onBidAccepted = function(itemId, itemName, amount) {
        $.pnotify({
           pnotify_title: "Out bid",
           pnotify_text: "The new high bid for " + itemName + " is " + amount + ".",
           pnotify_sticker: false
        });
    };
    $.connection.start();
});

AuctionHub.cs

public interface IItemService
{
    string GetItemName(Guid itemId);
}

public class BidAcceptedEvent : NServiceBus.IEvent
{

    public Guid ItemId { get; set; }
    public Guid BidId { get; set; }
    public decimal Amount { get; set; }

}

public class AuctionHub : Hub
{
}

public class AuctionHubHandler :
    IHandleMessages<BidAcceptedEvent>
{

    private readonly IConnectionManager _connectionManager;
    private readonly IItemService _itemService;

    public AuctionHubHandler(IConnectionManager connectionManager, IItemService itemService)
    {
        _connectionManager = connectionManager;
        _itemService = itemService;
    }

    private dynamic Clients
    {
        get { return _connectionManager.GetClients<AuctionHub>(); }
    }


    public void Handle(BidAcceptedEvent message)
    {
        var itemName = _itemService.GetItemName(message.ItemId);
        Clients[message.ItemId].onBidAccepted(message.ItemId, itemName, message.Amount);
    }
}

SignalRClientToServer.cs

    public class PatientHub : Hub
    {
    	public void AdmitPatient(Guid patientId)
    	{
    		// Admit the patient
    	}
    }

SignalRClientToServer.js

	patientHub.admitPatient(patientId);

SignalRServerToClient.cs

public class StatsHub : Hub
{
}

public class SomeOtherClass
{
	private readonly IConnectionManager _connectionManager;

	public Something(IConnectionManager connectionManager)
	{
		_connectionManager = connectionManager;
	}
	
	private dynamic Clients
	{
		get { return _connectionManager.GetClients<StatsHub>(); }
	}

	public void UpdateStats(Stats stats)
	{
		Clients.updateStats(stats);
	}
}

SignalRServerToClient.js

    var statsHub = $.connection.statsHub;
    statsHub.updateStats = function(stats) {
    	// Update the page with new stats.
    }
    $.connection.start();

In the auction example, how does the hub context correlate between the ItemId and a specific client's connection? Also, I don't see the IConnectionManager#GetClients<THub>() methhod in SignalR 1.0. Is this from an earlier version or is there an extension method I'm missing?