hadoop LifecycleEvent 源码
haddop LifecycleEvent 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/LifecycleEvent.java
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hadoop.service;
import java.io.Serializable;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Evolving;
/**
* A serializable lifecycle event: the time a state
* transition occurred, and what state was entered.
*/
@Public
@Evolving
public class LifecycleEvent implements Serializable {
private static final long serialVersionUID = 1648576996238247836L;
/**
* Local time in milliseconds when the event occurred
*/
public long time;
/**
* new state
*/
public Service.STATE state;
}
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