com.hazelcast.quorum.QuorumEvent Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, 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;
import java.util.EventObject;
/**
* An Event that is send when a {@link Quorum} changes.
*
* Hold member list, quorum threshold and the quorum result.
*/
public class QuorumEvent extends EventObject {
private final int threshold;
private final Collection currentMembers;
private final boolean presence;
public QuorumEvent(Object source, int threshold, Collection currentMembers, boolean presence) {
super(source);
this.threshold = threshold;
this.currentMembers = currentMembers;
this.presence = presence;
}
/**
* Returns the predefined quorum threshold
*
* @return int threshold
*/
public int getThreshold() {
return threshold;
}
/**
* Returns the snapshot of member list at the time quorum happened
*
* @return Collection collection of members
*/
public Collection getCurrentMembers() {
return currentMembers;
}
/**
* Returns the presence of the quorum
*
* @return boolean presence of the quorum
*/
public boolean isPresent() {
return presence;
}
@Override
public String toString() {
return "QuorumEvent{"
+ "threshold=" + threshold
+ ", currentMembers=" + currentMembers
+ ", presence=" + presence
+ '}';
}
}