--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Source/Data/Linq/Builder/RequestFor.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,52 @@
+using System;
+
+namespace BLToolkit.Data.Linq.Builder
+{
+	public enum RequestFor
+	{
+		/// <summary>
+		/// Checks the sequence if the expression is a table or an association.
+		/// </summary>
+		Table,
+
+		/// <summary>
+		/// Checks the sequence if the expression is an association.
+		/// </summary>
+		Association,
+
+		/// <summary>
+		/// Checks the sequence if the expression is a table, an association, new {}, or new MyClass {}.
+		/// </summary>
+		Object,
+
+		/// <summary>
+		/// Checks the sequence if the expression is a group join.
+		/// </summary>
+		GroupJoin,
+
+		/// <summary>
+		/// Checks the sequence if the expression is a field or single value expression.
+		/// </summary>
+		//Scalar,
+
+		/// <summary>
+		/// Checks the sequence if the expression is a field.
+		/// </summary>
+		Field,
+
+		/// <summary>
+		/// Checks the sequence if the expression contains an SQL expression.
+		/// </summary>
+		Expression,
+
+		/// <summary>
+		/// Checks the context if it's a subquery.
+		/// </summary>
+		SubQuery,
+
+		/// <summary>
+		/// Checks the context if it's a root of the expression.
+		/// </summary>
+		Root,
+	}
+}