hadoop QueryResult 源码
haddop QueryResult 代码
文件路径：/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/records/QueryResult.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.hdfs.server.federation.store.records;
import java.util.List;
/**
* Encapsulates a state store query result that includes a set of records and a
* time stamp for the result.
*/
public class QueryResult<T extends BaseRecord> {
/** Data result. */
private final List<T> records;
/** Time stamp of the data results. */
private final long timestamp;
public QueryResult(final List<T> recs, final long time) {
this.records = recs;
this.timestamp = time;
}
/**
* Get the result of the query.
*
* @return List of records.
*/
public List<T> getRecords() {
return this.records;
}
/**
* The timetamp in driver time of this query.
*
* @return Timestamp in driver time.
*/
public long getTimestamp() {
return this.timestamp;
}
}
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