com.hazelcast.spi.MembershipAwareService Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2016, 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.spi;
/**
* An interface that can be implemented by a SPI service that needs to be notified members joining and leaving
* the cluster.
*
* @author mdogan 9/5/12
*/
public interface MembershipAwareService {
/**
* Invoked when a new member is added to the cluster.
* Should be non-blocking.
*
* @param event the event for a new member added to the cluster
*/
void memberAdded(MembershipServiceEvent event);
/**
* Invoked when an existing member leaves the cluster.
* Should be non-blocking.
*
* @param event the event for an existing member leaving the cluster
*/
void memberRemoved(MembershipServiceEvent event);
/**
* Invoked when a member attribute is changed.
*
* @param event the event for a member attribute being changed
*/
void memberAttributeChanged(MemberAttributeServiceEvent event);
}