Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.Entity/System/Data/Mapping/ObjectMemberMapping.cs

@@ -0,0 +1,86 @@
+//---------------------------------------------------------------------
+// <copyright file="ObjectMemberMapping.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Xml;
+using System.Data.Metadata.Edm;
+
+namespace System.Data.Mapping {
+    /// <summary>
+    /// Mapping metadata for all OC member maps.
+    /// </summary>
+    internal abstract class ObjectMemberMapping
+    {
+        #region Constructors
+        /// <summary>
+        /// Constrcut a new member mapping metadata object
+        /// </summary>
+        /// <param name="edmMember"></param>
+        /// <param name="clrMember"></param>
+        protected ObjectMemberMapping(EdmMember edmMember, EdmMember clrMember)
+        {
+            System.Diagnostics.Debug.Assert(edmMember.BuiltInTypeKind == clrMember.BuiltInTypeKind, "BuiltInTypeKind must be the same");
+            this.m_edmMember = edmMember;
+            this.m_clrMember = clrMember;
+        }
+        #endregion
+
+        #region Fields
+        #region Internal
+        EdmMember m_edmMember;  //EdmMember metadata representing the Cdm member for which the mapping is specified
+        EdmMember m_clrMember;  //EdmMember metadata representing the Clr member for which the mapping is specified
+        #endregion
+        #endregion
+
+        #region Properties
+        /// <summary>
+        /// The PropertyMetadata object that represents the Cdm member for which mapping is being specified
+        /// </summary>
+        internal EdmMember EdmMember
+        {
+            get
+            {
+                return this.m_edmMember;
+            }
+        }
+
+        /// <summary>
+        /// The PropertyMetadata object that represents the Clr member for which mapping is being specified
+        /// </summary>
+        internal EdmMember ClrMember
+        {
+            get
+            {
+                return this.m_clrMember;
+            }
+        }
+
+        /// <summary>
+        /// Returns the member mapping kind
+        /// </summary>
+        internal abstract MemberMappingKind MemberMappingKind { get; }
+        #endregion
+    }
+
+    /// <summary>
+    /// Represents the various kind of member mapping
+    /// </summary>
+    internal enum MemberMappingKind
+    {
+        ScalarPropertyMapping = 0,
+
+        NavigationPropertyMapping = 1,
+
+        AssociationEndMapping =2,
+
+        ComplexPropertyMapping = 3,
+    }
+}