com.mongodb.connection

接口 Cluster

所有超级接口:

java.lang.AutoCloseable, java.io.Closeable

public interface Cluster
extends java.io.Closeable

Represents a cluster of MongoDB servers. Implementations can define the behaviour depending upon the type of cluster.

从以下版本开始:

3.0

方法概要

限定符和类型	方法和说明
void	close() Closes connections to the servers in the cluster.
ClusterDescription	getDescription() Get the description of this cluster.
boolean	isClosed() Whether all the servers in the cluster are closed or not.
Server	selectServer(ServerSelector serverSelector) Get a MongoDB server that matches the criteria defined by the serverSelector
void	selectServerAsync(ServerSelector serverSelector, SingleResultCallback<Server> callback) Asynchronously gets a MongoDB server that matches the criteria defined by the serverSelector.

方法详细资料

getDescription

ClusterDescription getDescription()

Get the description of this cluster. This method will not return normally until the cluster type is known.

返回:

a ClusterDescription representing the current state of the cluster

抛出:

MongoTimeoutException - if the timeout has been reached before the cluster type is known

selectServer

Server selectServer(ServerSelector serverSelector)

Get a MongoDB server that matches the criteria defined by the serverSelector

参数:

serverSelector - a ServerSelector that defines how to select the required Server

返回:

a Server that meets the requirements

抛出:

MongoTimeoutException - if the timeout has been reached before a server matching the selector is available

selectServerAsync

void selectServerAsync(ServerSelector serverSelector,
                       SingleResultCallback<Server> callback)

Asynchronously gets a MongoDB server that matches the criteria defined by the serverSelector.

参数:

serverSelector - a ServerSelector that defines how to select the required Server

callback - the callback to invoke when the server is found or an error occurs

close

void close()

Closes connections to the servers in the cluster. After this is called, this cluster instance can no longer be used.

指定者:

close 在接口中 java.lang.AutoCloseable

指定者:

close 在接口中 java.io.Closeable

isClosed

boolean isClosed()

Whether all the servers in the cluster are closed or not.

返回:

true if all the servers in this cluster have been closed