org.apache.twill.api

Interface ElectionHandler

public interface ElectionHandler

Handles events of election/un-election of leader.

Method Summary

Modifier and Type	Method and Description
void	follower() This method will get invoked when a participant is a follower in a leader election process.
void	leader() This method will get invoked when a participant becomes a leader in a leader election process.

Method Detail

leader

void leader()

This method will get invoked when a participant becomes a leader in a leader election process. It is guaranteed that this method won't get called consecutively (i.e. called twice or more in a row).

follower

void follower()

This method will get invoked when a participant is a follower in a leader election process. This method might get called multiple times without the leader() method being called.