com.hazelcast.core.LifecycleEvent Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2020, 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.core;
/**
* Lifecycle events are fired when the HazelcastInstance state changes.
*
* Events are fired when the instance is:
*
* - Starting
* - Started
* - Shutting down
* - Shut down completed
* - Merging
* - Merged
*
*
* @see com.hazelcast.core.LifecycleListener
* @see HazelcastInstance#getLifecycleService()
*/
public final class LifecycleEvent {
/**
* Lifecycle states
*/
public enum LifecycleState {
/**
* Fired when the member is starting.
*/
STARTING,
/**
* Fired when the member start is completed.
*/
STARTED,
/**
* Fired when the member is shutting down.
*/
SHUTTING_DOWN,
/**
* Fired when the member shut down is completed.
*/
SHUTDOWN,
/**
* Fired on each cluster member just before the start of a merge
* process into another cluster. This is typically used when a
* split-brain situation is healed.
*/
MERGING,
/**
* Fired when the merge process was successful and all data has been
* merged.
*/
MERGED,
/**
* Fired when the merge process failed for some reason.
*/
MERGE_FAILED,
/**
* Fired when a client is connected to the member.
*/
CLIENT_CONNECTED,
/**
* Fired when a client is disconnected from the member.
*/
CLIENT_DISCONNECTED,
/**
* Fired when a client is connected to a new cluster.
*/
CLIENT_CHANGED_CLUSTER
}
final LifecycleState state;
public LifecycleEvent(LifecycleState state) {
this.state = state;
}
public LifecycleState getState() {
return state;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (!(o instanceof LifecycleEvent)) {
return false;
}
LifecycleEvent that = (LifecycleEvent) o;
return state == that.state;
}
@Override
public int hashCode() {
return state != null ? state.hashCode() : 0;
}
@Override
public String toString() {
return "LifecycleEvent [state=" + state + "]";
}
}