C# Mongdb 之MongDb.Driver的 UpdateReault 参数解析

Posted 2023-03-15 C余L小R鱼

UpdateReault参数解析

        //
        // 摘要:
        //     Gets a value indicating whether the result is acknowledged.
        public abstract bool IsAcknowledged  get;  //标识Update操作是否被确认 及update有没有成功
        //
        // 摘要:
        //     Gets a value indicating whether the modified count is available.
        //
        // 言论：
        //     The available modified count.
        public abstract bool IsModifiedCountAvailable  get; //标识update操作是否进行了计数  如果IsAcknowledged&&IsModifiedCountAvailable--更新成功且可获取更新条数；如果 IsAcknowledged&&!IsModifiedCountAvailable--更新成功 但是无法获取更新条数 【该结果仅有驱动程序返回 只读】
        //
        // 摘要:
        //     Gets the matched count. If IsAcknowledged is false, this will throw an exception.
        public abstract long MatchedCount  get; 
        //
        // 摘要:
        //     Gets the modified count. If IsAcknowledged is false, this will throw an exception.
        public abstract long ModifiedCount  get; 
        //
        // 摘要:
        //     Gets the upserted id, if one exists. If IsAcknowledged is false, this will throw
        //     an exception.
        public abstract BsonValue UpsertedId  get; //更新对象不存在 就会新增一条 该属性返回新增数据的_id