//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation.  All rights reserved.
//----------------------------------------------------------------
 
namespace System.ServiceModel.Discovery
{
    using System.Xml;
 
    interface IDiscoveryServiceImplementation
    {
        bool IsDuplicate(UniqueId messageId);
 
        DiscoveryMessageSequence GetNextMessageSequence();
 
        IAsyncResult BeginFind(FindRequestContext findRequestContext, AsyncCallback callback, object state);
        void EndFind(IAsyncResult result);
 
        IAsyncResult BeginResolve(ResolveCriteria resolveCriteria, AsyncCallback callback, object state);
        EndpointDiscoveryMetadata EndResolve(IAsyncResult result);
    }
}