Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

@@ -0,0 +1,78 @@
+//---------------------------------------------------------------------
+// <copyright file="MetadataPropertyAttribute.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Diagnostics;
+
+namespace System.Data.Metadata.Edm
+{
+    /// <summary>
+    /// Attribute used to mark up properties that should appear in the MetadataItem.MetadataProperties collection
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = false)]
+    internal sealed class MetadataPropertyAttribute : Attribute
+    {
+        /// <summary>
+        /// Initializes a new attribute with built in type kind
+        /// </summary>
+        /// <param name="builtInTypeKind">Built in type setting Type property</param>
+        /// <param name="isCollectionType">Sets IsCollectionType property</param>
+        internal MetadataPropertyAttribute(BuiltInTypeKind builtInTypeKind, bool isCollectionType)
+            : this(MetadataItem.GetBuiltInType(builtInTypeKind), isCollectionType)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new attribute with primitive type kind
+        /// </summary>
+        /// <param name="primitiveTypeKind">Primitive type setting Type property</param>
+        /// <param name="isCollectionType">Sets IsCollectionType property</param>
+        internal MetadataPropertyAttribute(PrimitiveTypeKind primitiveTypeKind, bool isCollectionType)
+            : this(MetadataItem.EdmProviderManifest.GetPrimitiveType(primitiveTypeKind), isCollectionType)
+        {
+        }
+
+        /// <summary>
+        /// Initialize a new attribute with complex type kind (corresponding the the CLR type)
+        /// </summary>
+        /// <param name="type">CLR type setting Type property</param>
+        /// <param name="isCollection">Sets IsCollectionType property</param>
+        internal MetadataPropertyAttribute(Type type, bool isCollection)
+            : this(ClrComplexType.CreateReadonlyClrComplexType(type, type.Namespace ?? string.Empty, type.Name), isCollection)
+        {
+        }
+
+        /// <summary>
+        /// Initialize a new attribute
+        /// </summary>
+        /// <param name="type">Sets Type property</param>
+        /// <param name="isCollectionType">Sets IsCollectionType property</param>
+        private MetadataPropertyAttribute(EdmType type, bool isCollectionType)
+        {
+            Debug.Assert(null != type);
+            _type = type;
+            _isCollectionType = isCollectionType;
+        }
+
+        private readonly EdmType _type;
+        private readonly bool _isCollectionType;
+
+        /// <summary>
+        /// Gets EDM type for values stored in property.
+        /// </summary>
+        internal EdmType Type { get { return _type; } }
+
+        /// <summary>
+        /// Gets bool indicating whether this is a collection type.
+        /// </summary>
+        internal bool IsCollectionType { get { return _isCollectionType; } }
+    }
+}