org.apache.flink.runtime.leaderretrieval

类 ZooKeeperLeaderRetrievalDriver

java.lang.Object

org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalDriver

所有已实现的接口:

LeaderRetrievalDriver

public class ZooKeeperLeaderRetrievalDriver
extends Object
implements LeaderRetrievalDriver

The counterpart to the ZooKeeperLeaderElectionDriver. LeaderRetrievalService implementation for Zookeeper. It retrieves the current leader which has been elected by the ZooKeeperLeaderElectionDriver. The leader address as well as the current leader session ID is retrieved from ZooKeeper.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	ZooKeeperLeaderRetrievalDriver.LeaderInformationClearancePolicy Policy when to clear the leader information and to notify the listener about it.

构造器概要

构造器

构造器和说明

ZooKeeperLeaderRetrievalDriver(org.apache.flink.shaded.curator4.org.apache.curator.framework.CuratorFramework client, String path, LeaderRetrievalEventHandler leaderRetrievalEventHandler, ZooKeeperLeaderRetrievalDriver.LeaderInformationClearancePolicy leaderInformationClearancePolicy, org.apache.flink.runtime.rpc.FatalErrorHandler fatalErrorHandler) Creates a leader retrieval service which uses ZooKeeper to retrieve the leader information.

方法概要

限定符和类型	方法和说明
void	close() Close the services used for leader retrieval.
String	getConnectionInformationPath()
String	toString()

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

ZooKeeperLeaderRetrievalDriver

public ZooKeeperLeaderRetrievalDriver(org.apache.flink.shaded.curator4.org.apache.curator.framework.CuratorFramework client,
                                      String path,
                                      LeaderRetrievalEventHandler leaderRetrievalEventHandler,
                                      ZooKeeperLeaderRetrievalDriver.LeaderInformationClearancePolicy leaderInformationClearancePolicy,
                                      org.apache.flink.runtime.rpc.FatalErrorHandler fatalErrorHandler)
                               throws Exception

Creates a leader retrieval service which uses ZooKeeper to retrieve the leader information.

参数:

client - Client which constitutes the connection to the ZooKeeper quorum

path - Path of the ZooKeeper node which contains the leader information

leaderRetrievalEventHandler - Handler to notify the leader changes.

leaderInformationClearancePolicy - leaderInformationClearancePolicy controls when the leader information is being cleared

fatalErrorHandler - Fatal error handler

抛出:

Exception

方法详细资料

close

public void close()
           throws Exception

从接口复制的说明: LeaderRetrievalDriver

Close the services used for leader retrieval.

指定者:

close 在接口中 LeaderRetrievalDriver

抛出:

Exception

toString

public String toString()

覆盖:

toString 在类中 Object

getConnectionInformationPath

@VisibleForTesting
public String getConnectionInformationPath()