Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.Entity/System/Data/Metadata/Edm/AssociationEndMember.cs

@@ -0,0 +1,58 @@
+//---------------------------------------------------------------------
+// <copyright file="AssociationEndMember.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading;
+using System.Data.Objects.DataClasses;
+
+namespace System.Data.Metadata.Edm
+{
+    /// <summary>
+    /// Represents a end of a Association Type
+    /// </summary>
+    public sealed class AssociationEndMember : RelationshipEndMember
+    {
+        #region Constructors
+        /// <summary>
+        /// Initializes a new instance of AssociationEndMember
+        /// </summary>
+        /// <param name="name">name of the association end member</param>
+        /// <param name="endRefType">Ref type that this end refers to </param>
+        /// <param name="multiplicity">multiplicity of the end</param>
+        internal AssociationEndMember(string name,
+                                    RefType endRefType,
+                                    RelationshipMultiplicity multiplicity)
+            : base(name, endRefType, multiplicity)
+        {
+        }
+        #endregion
+
+        /// <summary>
+        /// Returns the kind of the type
+        /// </summary>
+        public override BuiltInTypeKind BuiltInTypeKind { get { return BuiltInTypeKind.AssociationEndMember; } }
+
+        private Func<RelationshipManager, RelatedEnd, RelatedEnd> _getRelatedEndMethod = null;
+
+        /// <summary>cached dynamic method to set a CLR property value on a CLR instance</summary> 
+        internal Func<RelationshipManager, RelatedEnd, RelatedEnd> GetRelatedEnd
+        {
+            get { return _getRelatedEndMethod; }
+            set
+            {
+                System.Diagnostics.Debug.Assert(null != value, "clearing GetRelatedEndMethod");
+                // It doesn't matter which delegate wins, but only one should be jitted
+                Interlocked.CompareExchange(ref _getRelatedEndMethod, value, null);
+            }
+        }
+
+    }
+}