hadoop ApplicationRowKeyPrefix 源码
haddop ApplicationRowKeyPrefix 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-hbase/hadoop-yarn-server-timelineservice-hbase-common/src/main/java/org/apache/hadoop/yarn/server/timelineservice/storage/application/ApplicationRowKeyPrefix.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.yarn.server.timelineservice.storage.application;
import org.apache.hadoop.yarn.server.timelineservice.storage.common.RowKeyPrefix;
/**
* Represents a partial rowkey (without flowName or without flowName and
* flowRunId) for the application table.
*/
public class ApplicationRowKeyPrefix extends ApplicationRowKey implements
RowKeyPrefix<ApplicationRowKey> {
/**
* Creates a prefix which generates the following rowKeyPrefixes for the
* application table: {@code clusterId!userName!flowName!}.
*
* @param clusterId the cluster on which applications ran
* @param userId the user that ran applications
* @param flowName the name of the flow that was run by the user on the
* cluster
*/
public ApplicationRowKeyPrefix(String clusterId, String userId,
String flowName) {
super(clusterId, userId, flowName, null, null);
}
/**
* Creates a prefix which generates the following rowKeyPrefixes for the
* application table: {@code clusterId!userName!flowName!flowRunId!}.
*
* @param clusterId identifying the cluster
* @param userId identifying the user
* @param flowName identifying the flow
* @param flowRunId identifying the instance of this flow
*/
public ApplicationRowKeyPrefix(String clusterId, String userId,
String flowName, Long flowRunId) {
super(clusterId, userId, flowName, flowRunId, null);
}
/*
* (non-Javadoc)
*
* @see
* org.apache.hadoop.yarn.server.timelineservice.storage.application.
* RowKeyPrefix#getRowKeyPrefix()
*/
@Override
public byte[] getRowKeyPrefix() {
return super.getRowKey();
}
}
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