使用C#API创建以mongodb为上限的集合 [英] Creating a mongodb capped collection using c# api

问题描述

使用C#MongoDB驱动程序，我们当前如下创建集合:

Using the C# MongoDB driver, we currently create our collection like so:

MongoServer mongoServer = MongoServer.Create("some conn str");
MongoDatabase db = mongoServer.GetDatabase("mydb");
MongoCollection logs = db.GetCollection("mycoll");

我想将mycoll用作上限集合.我还没有看到有关如何使用C#驱动程序创建上限集合的任何示例或文档说明.我发现了大量的JS示例，甚至Java示例(在这里:创建Java中的mongodb封顶的集合).

I would like to use mycoll as a capped collection. I haven't seen any examples or documentation specifics on how to create a capped collection using the C# driver. I've found tons of JS examples, and even a Java example (here: Creating a mongodb capped collection in java).

是否有人曾经做过此事，或者是否知道在C#中是可能的?

Has anyone had to do this before, or know if it's possible in C#?

推荐答案

创建集合时，需要指定使用CollectionOptions设置集合的上限:

When creating a collection, you need to specify that the collection should be capped by using CollectionOptions:

CollectionOptionsBuilder options = CollectionOptions.SetCapped(true);
database.CreateCollection("mycoll", options); 

您需要显式创建集合(通过调用CreateCollection方法)，以便能够提供您的选项.当使用不存在的集合调用GetCollection时，它将使用默认选项隐式创建.

You need to create the collection explicitly (by calling CreateCollection method) to be able to provide your options. When calling GetCollection with non-existing collection, it gets implicitly created with default options.

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