83 lines
2.4 KiB
C#
83 lines
2.4 KiB
C#
//---------------------------------------------------------------------
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// <copyright file="keyproperty.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//
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// @owner Microsoft
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// @backupOwner Microsoft
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//---------------------------------------------------------------------
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Data.Metadata.Edm;
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namespace System.Data.EntityModel.SchemaObjectModel
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{
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/// <summary>
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/// Represents PropertyRef Element for Entity keys and referential constraints
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/// </summary>
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internal sealed class PropertyRefElement : SchemaElement
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{
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#region Instance Fields
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private StructuredProperty _property = null;
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#endregion
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#region Public Methods
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/// <summary>
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/// construct a KeyProperty object
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/// </summary>
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/// <param name="parentElement"></param>
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public PropertyRefElement(SchemaElement parentElement)
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: base(parentElement)
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{
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}
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#endregion
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#region Public Properties
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/// <summary>
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/// property chain from KeyedType to Leaf property
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/// </summary>
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public StructuredProperty Property
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{
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get
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{
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return _property;
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}
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}
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#endregion
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#region Private Methods
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internal override void ResolveTopLevelNames()
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{
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Debug.Assert(false, "This method should never be used. Use other overload instead");
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}
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/// <summary>
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/// Since this method can be used in different context, this method does not add any errors
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/// Please make sure that the caller of this methods handles the error case and add errors
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/// appropriately
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/// </summary>
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/// <param name="entityType"></param>
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/// <returns></returns>
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internal bool ResolveNames(SchemaEntityType entityType)
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{
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if (string.IsNullOrEmpty(this.Name))
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{
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// Don't flag this error. This must already must have flaged as error, while handling name attribute
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return true;
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}
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// Make sure there is a property by this name
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_property = entityType.FindProperty(this.Name);
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return (_property != null);
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}
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#endregion
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}
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}
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