org.apache.flink.runtime.leaderelection

接口 MultipleComponentLeaderElectionDriver

所有已知实现类:

ZooKeeperMultipleComponentLeaderElectionDriver

public interface MultipleComponentLeaderElectionDriver

A leader election driver that allows to write LeaderInformation for multiple components.

嵌套类概要

嵌套类

限定符和类型	接口和说明
static interface	MultipleComponentLeaderElectionDriver.Listener Listener interface for state changes of the MultipleComponentLeaderElectionDriver.

方法概要

限定符和类型	方法和说明
void	close() Closes the driver.
void	deleteLeaderInformation(String componentId) Deletes the leader information for the given component.
boolean	hasLeadership() Returns whether the driver has currently leadership.
void	publishLeaderInformation(String componentId, LeaderInformation leaderInformation) Publishes the leader information for the given component.

方法详细资料

close

void close()
    throws Exception

Closes the driver.

抛出:

Exception - if closing this driver fails

hasLeadership

boolean hasLeadership()

Returns whether the driver has currently leadership.

返回:

true if the driver has leadership, otherwise false

publishLeaderInformation

void publishLeaderInformation(String componentId,
                              LeaderInformation leaderInformation)
                       throws Exception

Publishes the leader information for the given component.

参数:

componentId - identifying the component for which to publish the leader information

leaderInformation - leader information of the respective component

抛出:

Exception - if publishing fails

deleteLeaderInformation

void deleteLeaderInformation(String componentId)
                      throws Exception

Deletes the leader information for the given component.

参数:

componentId - identifying the component for which to delete the leader information

抛出:

Exception - if deleting fails