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/*
* Copyright 2018-present Open Networking Foundation
* Copyright © 2020 camunda services GmbH ([email protected])
*
* 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 io.atomix.cluster.protocol;
import io.atomix.cluster.Member;
import io.atomix.utils.event.AbstractEvent;
import java.util.Objects;
/** Group membership protocol event. */
public class GroupMembershipEvent extends AbstractEvent {
public GroupMembershipEvent(final Type type, final Member subject) {
super(type, subject);
}
/**
* Returns the member.
*
* @return the member
*/
public Member member() {
return subject();
}
@Override
public int hashCode() {
return Objects.hash(type(), member());
}
@Override
public boolean equals(final Object object) {
if (object instanceof GroupMembershipEvent) {
final GroupMembershipEvent that = (GroupMembershipEvent) object;
return type() == that.type() && member().equals(that.member());
}
return false;
}
/** Group membership protocol event type. */
public enum Type {
/** Indicates that a new member has been added. */
MEMBER_ADDED,
/** Indicates that a member's metadata has changed. */
METADATA_CHANGED,
/** Indicates that a member's reachability has changed. */
REACHABILITY_CHANGED,
/** Indicates that a member has been removed. */
MEMBER_REMOVED,
}
}