org.graylog2.cluster.leader.LeaderElectionService Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog2.cluster.leader;
public interface LeaderElectionService {
/**
* Check if the current node is the leader of the cluster.
*
* This method might be called frequently. Implementations should be performant and resource-friendly.
*
*
* @return true if the current node is the leader, false if it is not
*/
boolean isLeader();
}