81 lines
3.0 KiB
C#
81 lines
3.0 KiB
C#
//---------------------------------------------------------------------
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// <copyright file="TargetPerspective.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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namespace System.Data.Metadata.Edm
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{
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using System.Collections.Generic;
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using System.Globalization;
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/// <summary>
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/// Internal helper class for query
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/// </summary>
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internal class TargetPerspective : Perspective
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{
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#region Constructors
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/// <summary>
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/// Creates a new instance of perspective class so that query can work
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/// ignorant of all spaces
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/// </summary>
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/// <param name="metadataWorkspace">runtime metadata container</param>
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internal TargetPerspective(MetadataWorkspace metadataWorkspace)
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: base(metadataWorkspace, TargetPerspective.TargetPerspectiveDataSpace)
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{
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_modelPerspective = new ModelPerspective(metadataWorkspace);
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}
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#endregion
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#region Fields
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internal const DataSpace TargetPerspectiveDataSpace = DataSpace.SSpace;
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// TargetPerspective uses a ModelPerspective for a second lookup in type lookup
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private ModelPerspective _modelPerspective;
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#endregion
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#region Methods
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/// <summary>
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/// Look up a type in the target data space based upon the fullName
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/// </summary>
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/// <param name="fullName">fullName</param>
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/// <param name="ignoreCase">true for case-insensitive lookup</param>
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/// <param name="usage"></param>
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/// <returns>a list of types that have the specified full name but may differ by strong name</returns>
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internal override bool TryGetTypeByName(string fullName, bool ignoreCase, out TypeUsage usage)
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{
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EntityUtil.CheckStringArgument(fullName, "fullName");
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EdmType edmType = null;
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if (this.MetadataWorkspace.TryGetItem<EdmType>(fullName, ignoreCase, this.TargetDataspace, out edmType))
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{
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usage = TypeUsage.Create(edmType);
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usage = Helper.GetModelTypeUsage(usage);
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return true;
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}
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return _modelPerspective.TryGetTypeByName(fullName, ignoreCase, out usage);
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}
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/// <summary>
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/// Returns the entity container in CSpace or SSpace
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/// </summary>
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/// <param name="name"></param>
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/// <param name="ignoreCase"></param>
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/// <param name="entityContainer"></param>
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/// <returns></returns>
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internal override bool TryGetEntityContainer(string name, bool ignoreCase, out EntityContainer entityContainer)
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{
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if (!base.TryGetEntityContainer(name, ignoreCase, out entityContainer))
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{
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return _modelPerspective.TryGetEntityContainer(name, ignoreCase, out entityContainer);
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}
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return true;
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}
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#endregion
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}
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}
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