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首頁javacacheJava Data Structure - 如何基于LinkedHashMap創(chuàng)建最近使用的緩存

Java Data Structure - 如何基于LinkedHashMap創(chuàng)建最近使用的緩存

我們想知道如何基于LinkedHashMap創(chuàng)建最近使用的緩存。
/**
* 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.
*/
import java.util.LinkedHashMap;
import java.util.Map;
/**
* A Least Recently Used Cache
*
* @version $Revision: 747062 $
*/
public class LRUCache<K, V> extends LinkedHashMap<K, V> {
private static final long serialVersionUID = -342098639681884413L;
private int maxCacheSize = 10000;
public LRUCache(int maximumCacheSize) {
this(maximumCacheSize, maximumCacheSize, 0.75f, true);
}
 
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