Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,56 @@
+//---------------------------------------------------------------------
+// <copyright file="RelationshipSet.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Text;
+
+namespace System.Data.Metadata.Edm
+{
+    /// <summary>
+    /// Class for representing a relationship set
+    /// </summary>
+    public abstract class RelationshipSet : EntitySetBase
+    {
+        #region Constructors
+        /// <summary>
+        /// The constructor for constructing the RelationshipSet with a given name and an relationship type
+        /// </summary>
+        /// <param name="name">The name of the RelationshipSet</param>
+        /// <param name="schema">The db schema</param>
+        /// <param name="table">The db table</param>
+        /// <param name="definingQuery">The provider specific query that should be used to retrieve the EntitySet</param>
+        /// <param name="relationshipType">The entity type of the entities that this entity set type contains</param> 
+        /// <exception cref="System.ArgumentNullException">Thrown if the argument name or entityType is null</exception>
+        internal RelationshipSet(string name, string schema, string table, string definingQuery, RelationshipType relationshipType)
+            : base(name, schema, table, definingQuery, relationshipType)
+        {
+        }
+        #endregion
+
+        #region Properties
+        /// <summary>
+        /// Returns the relationship type associated with this relationship set
+        /// </summary>
+        public new RelationshipType ElementType
+        {
+            get
+            {
+                return (RelationshipType)base.ElementType;
+            }
+        }
+
+        /// <summary>
+        /// Returns the kind of the type
+        /// </summary>
+        public override BuiltInTypeKind BuiltInTypeKind { get { return BuiltInTypeKind.RelationshipSet; } }
+        #endregion
+    }
+}