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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Threading.Tasks;
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namespace VOL.Core.CacheManager
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{
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public interface ICacheService : IDisposable
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{
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/// <summary>
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/// 验证缓存项是否存在
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/// </summary>
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/// <param name="key">缓存Key</param>
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/// <returns></returns>
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bool Exists(string key);
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/// <summary>
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/// List写入head
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/// </summary>
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/// <param name="key"></param>
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/// <param name="val"></param>
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void LPush(string key, string val);
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void RPush(string key, string val);
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/// <summary>
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/// List出队 lpop
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/// </summary>
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/// <param name="key"></param>
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/// <returns></returns>
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object ListDequeue(string key);
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/// <summary>
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/// List出队 lpop
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/// </summary>
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/// <param name="key"></param>
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/// <returns></returns>
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T ListDequeue<T>(string key) where T : class;
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/// <summary>
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/// 移除list中的数据，keepIndex为保留的位置到最后一个元素如list 元素为1.2.3.....100
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/// 需要移除前3个数，keepindex应该为4
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/// </summary>
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/// <param name="key"></param>
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/// <param name="keepIndex"></param>
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void ListRemove(string key, int keepIndex);
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/// <summary>
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/// 添加缓存
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/// </summary>
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/// <param name="key">缓存Key</param>
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/// <param name="value">缓存Value</param>
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/// <param name="expiresIn">缓存时长</param>
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/// <param name="isSliding">是否滑动过期（如果在过期时间内有操作，则以当前时间点延长过期时间） //new TimeSpan(0, 60, 0);</param>
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/// <returns></returns>
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bool AddObject(string key, object value, int expireSeconds = -1, bool isSliding = false);
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bool Add(string key, string value, int expireSeconds = -1, bool isSliding = false);
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/// <summary>
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/// 删除缓存
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/// </summary>
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/// <param name="key">缓存Key</param>
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/// <returns></returns>
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bool Remove(string key);
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/// <summary>
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/// 批量删除缓存
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/// </summary>
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/// <param name="key">缓存Key集合</param>
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/// <returns></returns>
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void RemoveAll(IEnumerable<string> keys);
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/// <summary>
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/// 获取缓存
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/// </summary>
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/// <param name="key">缓存Key</param>
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/// <returns></returns>
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T Get<T>(string key) where T : class;
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/// <summary>
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/// 获取缓存
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/// </summary>
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/// <param name="key">缓存Key</param>
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/// <returns></returns>
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string Get(string key);
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}
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}
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