Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.Entity/System/Data/Objects/ObjectResult.cs

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+//---------------------------------------------------------------------
+// <copyright file="ObjectResult.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupowner [....]
+//---------------------------------------------------------------------
+
+namespace System.Data.Objects
+{
+    using System;
+    using System.Collections;
+    using System.ComponentModel;
+    
+    /// <summary>
+    /// This class implements IEnumerable and IDisposable. Instance of this class
+    /// is returned from ObjectQuery.Execute method.
+    /// </summary>
+    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1710:IdentifiersShouldHaveCorrectSuffix")]
+    public abstract class ObjectResult : IEnumerable, IDisposable, IListSource
+    {
+        internal ObjectResult()
+        {
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return this.GetEnumeratorInternal();
+        }
+
+        // ----------------------
+        // IListSource  Properties
+        // ----------------------
+        /// <summary>
+        ///   IListSource.ContainsListCollection implementation. Always returns false.
+        /// </summary>
+        bool IListSource.ContainsListCollection
+        {
+            get
+            {
+                return false; // this means that the IList we return is the one which contains our actual data, it is not a collection
+            }
+        }
+
+        // ----------------------
+        // IListSource  method
+        // ----------------------
+        /// <summary>
+        ///   IListSource.GetList implementation
+        /// </summary>
+        /// <returns>
+        ///   IList interface over the data to bind
+        /// </returns>
+        IList IListSource.GetList()
+        {
+            return this.GetIListSourceListInternal();
+        }
+
+        public abstract Type ElementType
+        {
+            get;
+        }
+
+        public abstract void Dispose();
+
+        /// <summary>
+        ///   Get the next result set of a stored procedure.
+        /// </summary>
+        /// <returns>
+        ///   An ObjectResult that enumerates the values of the next result set.   null, if there are no more, or if the 
+        ///   the ObjectResult is not the result of a stored procedure call.
+        /// </returns>
+        public ObjectResult<TElement> GetNextResult<TElement>()
+        {
+            return this.GetNextResultInternal<TElement>();
+        }
+
+        internal abstract IEnumerator GetEnumeratorInternal();
+        internal abstract IList GetIListSourceListInternal();
+        internal abstract ObjectResult<TElement> GetNextResultInternal<TElement>();
+    }
+}