QuorumListener.java

/*
 * Copyright (c) 2008-2017, 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 java.util.EventListener;

/**
 * Listener to get notified when a quorum state is changed
 */
public interface QuorumListener extends EventListener {

    /**
     * Called when quorum presence state is changed.
     *
     * @param quorumEvent provides information about quorum presence and current member list.
     */
    void onChange(QuorumEvent quorumEvent);

}