Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.Entity/System/Data/Metadata/DataSpace.cs

@@ -0,0 +1,45 @@
+//---------------------------------------------------------------------
+// <copyright file="DataSpace.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       leil
+// @backupOwner anpete
+//---------------------------------------------------------------------
+
+using System;
+
+namespace System.Data.Metadata.Edm
+{
+    /// <summary>
+    /// DataSpace
+    /// </summary>
+    public enum DataSpace
+    {
+        /// <summary>
+        /// OSpace indicates the item in the clr space
+        /// </summary>
+        OSpace = 0,
+
+        /// <summary>
+        /// CSpace indicates the item in the CSpace - edm primitive types + 
+        /// types defined in csdl
+        /// </summary>
+        CSpace = 1,
+
+        /// <summary>
+        /// SSpace indicates the item in the SSpace
+        /// </summary>
+        SSpace = 2,
+
+        /// <summary>
+        /// Mapping between OSpace and CSpace
+        /// </summary>
+        OCSpace = 3,
+
+        /// <summary>
+        /// Mapping between CSpace and SSpace
+        /// </summary>
+        CSSpace = 4
+    }
+}