61 lines
2.2 KiB
C#
61 lines
2.2 KiB
C#
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//---------------------------------------------------------------------
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// <copyright file="ModelPerspective.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 [....]
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// @backupOwner [....]
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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 ModelPerspective : Perspective
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{
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#region Contructors
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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 ModelPerspective(MetadataWorkspace metadataWorkspace)
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: base(metadataWorkspace, DataSpace.CSpace)
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{
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}
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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="typeUsage">The type usage object to return</param>
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/// <returns>True if the retrieval succeeded</returns>
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internal override bool TryGetTypeByName(string fullName, bool ignoreCase, out TypeUsage typeUsage )
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{
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EntityUtil.CheckStringArgument(fullName, "fullName");
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typeUsage = null;
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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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if (Helper.IsPrimitiveType(edmType))
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{
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typeUsage = this.MetadataWorkspace.GetCanonicalModelTypeUsage(((PrimitiveType)edmType).PrimitiveTypeKind);
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}
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else
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{
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typeUsage = TypeUsage.Create(edmType);
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}
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}
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return typeUsage != null;
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}
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#endregion
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}
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}
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