/*
* Copyright (C) 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.facebook.zookeeper.election;
import org.apache.zookeeper.KeeperException;
public interface LeaderElectionObserver {
/**
* Gets the name of the candidate that is currently the leader
* @return Name of the leader, or null if there are no candidates
* @throws InterruptedException
* @throws org.apache.zookeeper.KeeperException
*/
String getLeader() throws InterruptedException, KeeperException;
}