src/Library/NetPro.StackExchange.Redis/StackExchange.Redis.Extensions.Core/Abstractions/IRedisDatabase.cs

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using StackExchange.Redis.Extensions.Core.Models;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;

namespace StackExchange.Redis.Extensions.Core.Abstractions
{
    /// <summary>
    /// The Redis Database
    /// </summary>
    public partial interface IRedisDatabase
    {
        /// <summary>
        ///     Gets the instance of <see cref="IDatabase" /> used be ICacheClient implementation
        /// </summary>
        IDatabase Database { get; }

        /// <summary>
        ///     Gets the instance of <see cref="ISerializer" />
        /// </summary>
        ISerializer Serializer { get; }

        /// <summary>
        /// 检查key是否存在
        /// </summary>
        /// <param name="key"></param>
        /// <param name="flag"></param>
        /// <returns></returns>
        Task<bool> ExistsAsync(string key, CommandFlags flag = CommandFlags.None);

        /// <summary>
        /// 返回具有超时的键的剩余生存时间
        /// </summary>
        /// <param name="key"></param>
        /// <param name="flags"></param>
        /// <returns></returns>
        TimeSpan? KeyTimeToLive(string key, CommandFlags flags = CommandFlags.None);

        /// <summary>
        /// 返回具有超时的键的剩余生存时间
        /// </summary>
        /// <param name="key"></param>
        /// <param name="flags"></param>
        /// <returns></returns>
        Task<TimeSpan?> KeyTimeToLiveAsync(string key, CommandFlags flags = CommandFlags.None);

        /// <summary>
        /// 设置一个超时键
        /// </summary>
        /// <param name="key"></param>
        /// <param name="expiry"></param>
        /// <param name="flags"></param>
        /// <returns>true:设置成功，false：设置失败</returns>
        Task<bool> KeyExpireAsync(string key, TimeSpan? expiry, CommandFlags flags = CommandFlags.None);

        /// <summary>
        /// 设置一个超时键
        /// </summary>
        /// <param name="key"></param>