org.apache.hive.service.cli.operation.QueryInfoCache Maven / Gradle / Ivy
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* 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,
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*/
package org.apache.hive.service.cli.operation;
import org.apache.hadoop.hive.ql.QueryInfo;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* Cache some SQLOperation information for WebUI
*/
public class QueryInfoCache extends LinkedHashMap {
private final int capacity;
public QueryInfoCache(int capacity) {
super(capacity + 1, 1.1f, false);
this.capacity = capacity;
}
@Override
protected boolean removeEldestEntry(Map.Entry eldest) {
return size() > capacity;
}
}