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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Core.WindowsInstaller
{
using System;
using System.Collections.Generic;
using WixToolset.Data.WindowsInstaller;
/// <summary>
/// A dictionary of rows. Unlike the <see cref="RowIndexedCollection"/> this
/// will throw when multiple rows with the same key are added.
/// </summary>
public sealed class RowDictionary<T> : Dictionary<string, T> where T : Row
{
/// <summary>
/// Creates an empty <see cref="RowDictionary"/>.
/// </summary>
public RowDictionary()
: base(StringComparer.InvariantCulture)
{
}
/// <summary>
/// Creates and populates a <see cref="RowDictionary"/> with the rows from the given enumerator.
/// </summary>
/// <param name="Rows">Rows to add.</param>
public RowDictionary(IEnumerable<T> rows)
: this()
{
foreach (T row in rows)
{
this.Add(row);
}
}
/// <summary>
/// Creates and populates a <see cref="RowDictionary"/> with the rows from the given <see cref="Table"/>.
/// </summary>
/// <param name="table">The table to index.</param>
/// <remarks>
/// Rows added to the index are not automatically added to the given <paramref name="table"/>.
/// </remarks>
public RowDictionary(Table table)
: this()
{
if (null != table)
{
foreach (T row in table.Rows)
{
this.Add(row);
}
}
}
/// <summary>
/// Adds a row to the dictionary using the row key.
/// </summary>
/// <param name="row">Row to add to the dictionary.</param>
public void Add(T row)
{
this.Add(row.GetKey(), row);
}
/// <summary>
/// Gets the row by integer key.
/// </summary>
/// <param name="key">Integer key to look up.</param>
/// <returns>Row or null if key is not found.</returns>
public T Get(int key)
{
return this.Get(key.ToString());
}
/// <summary>
/// Gets the row by string key.
/// </summary>
/// <param name="key">String key to look up.</param>
/// <returns>Row or null if key is not found.</returns>
public T Get(string key)
{
return this.TryGetValue(key, out var result) ? result : null;
}
}
}
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