com.hazelcast.quorum.HeartbeatAware Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.quorum;
import com.hazelcast.core.Member;
import java.util.Collection;
/**
* {@link QuorumFunction}s which implement this interface will be notified of member heartbeats.
*/
public interface HeartbeatAware {
/**
* Notifies of a received heartbeat. This method is always invoked before {@link QuorumFunction#apply(Collection)} so
* the {@code QuorumFunction} can update its internal state before deciding on quorum presence.
*
* @param member member from which heartbeat was received
* @param timestamp timestmap on which heartbeat was received
*/
void onHeartbeat(Member member, long timestamp);
}