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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
#if !NO_EXPRESSIONS
using System.Linq.Expressions;
namespace System.Reactive.Linq
{
/// <summary>
/// Defines methods to create and execute queries that are described by an IQbservable object.
/// </summary>
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1704:IdentifiersShouldBeSpelledCorrectly", MessageId = "Qbservable", Justification = "What a pleasure to write 'by design' here.")]
public interface IQbservableProvider
{
/// <summary>
/// Constructs an IQbservable>TResult< object that can evaluate the query represented by a specified expression tree.
/// </summary>
/// <typeparam name="TResult">The type of the elements of the System.Reactive.Linq.IQbservable<T> that is returned.</typeparam>
/// <param name="expression">Expression tree representing the query.</param>
/// <returns>IQbservable object that can evaluate the given query expression.</returns>
IQbservable<TResult> CreateQuery<TResult>(Expression expression);
}
}
#endif
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