103 lines
3.0 KiB
C#
103 lines
3.0 KiB
C#
/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2020 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@qq.com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UConcurrentDoubleKeyDictionary.cs
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* 文件说明: 双主键线程安全字典，适用场景主键和键值都唯一，可双向查找
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* 当前版本: V2.2
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* 创建日期: 2020-08-17
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*
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* 2020-08-17: V2.2.7 增加文件说明
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******************************************************************************/
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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namespace Sunny.UI
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{
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public class ConcurrentDoubleKeyDictionary<TKey1, TKey2>
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{
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private readonly ConcurrentDictionary<TKey1, TKey2> Key1 = new ConcurrentDictionary<TKey1, TKey2>();
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private readonly ConcurrentDictionary<TKey2, TKey1> Key2 = new ConcurrentDictionary<TKey2, TKey1>();
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public void TryAdd(TKey1 key1, TKey2 key2)
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{
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Key1.TryAddOrUpdate(key1, key2);
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Key2.TryAddOrUpdate(key2, key1);
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}
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public TKey2 this[TKey1 key1]
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{
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get => GetKey2(key1);
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set => TryAdd(key1, value);
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}
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public int Count => Key1.Count;
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public void RemoveByKey1(TKey1 key1)
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{
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if (ContainsKey1(key1))
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{
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TKey2 key2 = GetKey2(key1);
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Key1.TryRemove(key1, out _);
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if (ContainsKey2(key2)) Key2.TryRemove(key2, out _);
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}
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}
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public void RemoveByKey2(TKey2 key2)
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{
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if (ContainsKey2(key2))
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{
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TKey1 key1 = GetKey1(key2);
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Key2.TryRemove(key2, out _);
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if (ContainsKey1(key1)) Key1.TryRemove(key1, out _);
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}
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}
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public TKey2 GetKey2(TKey1 key1)
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{
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return Key1.ContainsKey(key1) ? Key1[key1] : default(TKey2);
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}
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public TKey1 GetKey1(TKey2 key2)
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{
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return Key2.ContainsKey(key2) ? Key2[key2] : default(TKey1);
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}
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public bool ContainsKey1(TKey1 key1)
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{
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return Key1.ContainsKey(key1);
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}
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public bool ContainsKey2(TKey2 key2)
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{
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return Key2.ContainsKey(key2);
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}
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public IList<TKey1> Key1List()
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{
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return Key1.Keys.ToList();
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}
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public IList<TKey2> Key2List()
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{
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return Key2.Keys.ToList();
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}
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public void Clear()
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{
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Key1.Clear();
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Key2.Clear();
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}
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}
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} |