hjahgdthab750:
using MongoDB.Driver;
using System;
/// <summary>
/// The result of a delete operation.
/// </summary>
public abstract class DeleteResult
{
/// <summary>
/// The result of an acknowledged delete operation.
/// </summary>
public class Acknowledged : DeleteResult
{
private readonly long _deletedCount;
/// <inheritdoc />
public override long DeletedCount => _deletedCount;
/// <inheritdoc />
public override bool IsAcknowledged => true;
/// <summary>
/// Initializes a new instance of the <see cref="T:MongoDB.Driver.DeleteResult.Acknowledged" /> class.
/// </summary>
/// <param name="deletedCount">The deleted count.</param>
public Acknowledged (long deletedCount);
}
/// <summary>
/// The result of an unacknowledged delete operation.
/// </summary>
public class Unacknowledged : DeleteResult
{
private static Unacknowledged __instance = new Unacknowledged ();
/// <summary>
/// Gets the instance.
/// </summary>
public static Unacknowledged Instance => __instance;
/// <inheritdoc />
public override long DeletedCount {
get;
}
/// <inheritdoc />
public override bool IsAcknowledged => false;
private Unacknowledged ();
}
/// <summary>
/// Gets the deleted count. If IsAcknowledged is false, this will throw an exception.
/// </summary>
public abstract long DeletedCount {
get;
}
/// <summary>
/// Gets a value indicating whether the result is acknowledged.
/// </summary>
public abstract bool IsAcknowledged {
get;
}
internal static DeleteResult FromCore (BulkWriteResult result);
}
上面的 Acknowleged 继承于 DeleteResult
可以是为啥要写到 DeleteResult 之中?岂不是造成循环了?
ZHXZHX: 网址: https://youthce.com/B-a7352566cc3c4141891195bc18c30af0 想像上面的图片格式一样,利用 notion 制作一个简单的网页书签整理,替代书签同步功能,顺便整合一些不常用的书签。 但原网址限制了模板复制,不能套用。 刚接触 notion,一开始以为是 table,上网搜索一番,找不到方法…
请教 chrome 播放音视频突然没有声音了怎么办futou:平台: win10 1909 chrome: 正式版 85.0.xxx 64bit chrome 昨天开始突然没有声音,网上搜索发现很多相似情况。 未静音,edge 浏览器及其它软件有声音。 重启 windows audio 服务后可以短时间内解决 chrome 的问题,换个视频就又不行了。 重置 setting 、更新和重装解决不了 chrom…
MongoDb C#驱动程序通过一次原子操作即可更新多个文档 - c#我想问你下面的代码是否将在一个原子操作中执行。我正在使用mongodb c#驱动程序。该方法的输入是我要更新的对象的ID列表。public void Update(IEnumerable<string> ids) { var query = Query<T>.Where(t => ids.Contains(t.Id)); var…
[请教] Docker 容器如何与主机同网段其它主机互通?xuerui911:我最近在学习大数据,Hadoop Zookeeper Hive Flume Kafka HBase 等等,需要同时开 5 个 VMWare 虚拟机,5 个虚拟机和主机 Windows 的 IDEA 互相访问。笔记本风扇起飞,风扇爆炸吵。我查到 Docker 是更轻量化的虚拟化技术,就简单学习了 Docker 。我理解 Docker0 所谓…
将谓词<T>转换为Func <T,bool> - c#我有一个包含成员Predicate的类,希望在Linq表达式中使用该类:using System.Linq; class MyClass { public bool DoAllHaveSomeProperty() { return m_instrumentList.All(m_filterExpression); } private IEnumerable&…