Add missing options to QueryOver

Fix #2270

Author: fredericDelaporte

src/NHibernate/QueryOverExtensions.cs

@@ -0,0 +1,42 @@
+namespace NHibernate
+{
+	// 6.0 TODO: merge into IQueryOver<TRoot>
+	public static class QueryOverExtensions
+	{
+		/// <summary>
+		/// Set a timeout for the underlying ADO.NET query.
+		/// </summary>
+		/// <param name="queryOver">The query on which to set the timeout.</param>
+		/// <param name="timeout">The timeout in seconds.</param>
+		/// <returns><see langword="this" /> (for method chaining).</returns>
+		public static IQueryOver<TRoot> SetTimeout<TRoot>(this IQueryOver<TRoot> queryOver, int timeout)
+		{
+			queryOver.RootCriteria.SetTimeout(timeout);
+			return queryOver;
+		}
+		
+		/// <summary>
+		/// Set a fetch size for the underlying ADO query.
+		/// </summary>
+		/// <param name="queryOver">The query on which to set the timeout.</param>
+		/// <param name="fetchSize">The fetch size.</param>
+		/// <returns><see langword="this" /> (for method chaining).</returns>
+		public static IQueryOver<TRoot> SetFetchSize<TRoot>(this IQueryOver<TRoot> queryOver, int fetchSize)
+		{
+			queryOver.RootCriteria.SetFetchSize(fetchSize);
+			return queryOver;
+		}
+
+		/// <summary>
+		/// Add a comment to the generated SQL.
+		/// </summary>
+		/// <param name="queryOver">The query on which to set the timeout.</param>
+		/// <param name="comment">A human-readable string.</param>
+		/// <returns><see langword="this" /> (for method chaining).</returns>
+		public static IQueryOver<TRoot> SetComment<TRoot>(this IQueryOver<TRoot> queryOver, string comment)
+		{
+			queryOver.RootCriteria.SetComment(comment);
+			return queryOver;
+		}
+	}
+}