node.js – Meteor如何接收MongoDB查询结果的更新？

几个月前我问了一个问题，哪个流星似乎有答案。

Which,if any,of the NoSQL databases can provide stream of *changes* to a query result set?

Meteor如何接收MongoDB查询结果的更新？

谢谢，

克里斯。

解决方法

从文档：

• On the server,a collection with that name is created on a backend Mongo server. When you call methods on that collection on the server,
  they translate directly into normal Mongo operations.

• On the client,a Minimongo instance is created. Minimongo is essentially an in-memory,non-persistent implementation of Mongo in
  pure JavaScript. It serves as a local cache that stores just the
  subset of the database that this client is working with. Queries on
  the client (find) are served directly out of this cache,without
  talking to the server.

When you write to the database on the client (insert,update,remove),
the command is executed immediately on the client,and,
simultaneously,it’s shipped up to the server and executed there too.
The livedata package is responsible for this.

这说明客户端到服务器

服务器到客户端，我可以收集的是livedata和mongo-livedata包。

https://github.com/meteor/meteor/tree/master/packages/mongo-livedata

https://github.com/meteor/meteor/tree/master/packages/livedata

希望有帮助。