52 lines
1.7 KiB
C#
52 lines
1.7 KiB
C#
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//---------------------------------------------------------------------
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// <copyright file="Util.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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using System;
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using System.Collections.Generic;
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using System.Data.Common;
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using System.Diagnostics;
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using System.Text;
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namespace System.Data.Metadata.Edm
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{
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/// <summary>
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/// Class holding utility functions for metadata
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/// </summary>
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internal static class Util
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{
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#region Methods
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/// <summary>
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/// Throws an appropriate exception if the given item is a readonly, used when an attempt is made to change
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/// a property
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/// </summary>
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/// <param name="item">The item whose readonly is being tested</param>
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internal static void ThrowIfReadOnly(MetadataItem item)
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{
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Debug.Assert(item != null, "The given item is null");
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if (item.IsReadOnly)
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{
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throw EntityUtil.OperationOnReadOnlyItem();
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}
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}
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/// <summary>
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/// Check to make sure the given item do have identity
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/// </summary>
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/// <param name="item">The item to check for valid identity</param>
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/// <param name="argumentName">The name of the argument</param>
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[Conditional("DEBUG")]
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internal static void AssertItemHasIdentity(MetadataItem item, string argumentName)
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{
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Debug.Assert(!string.IsNullOrEmpty(item.Identity), "Item has empty identity.");
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EntityUtil.GenericCheckArgumentNull(item, argumentName);
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}
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#endregion
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}
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}
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