package org.apache.commons.jcs.utils.struct;
/*
* 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.
*/
/**
*
* @author Wiktor Niesiobędzki
*
* Simple LRUMap implementation that keeps the number of the objects below or equal maxObjects
*
* @param <K>
* @param <V>
*/
public class LRUMap<K, V> extends AbstractLRUMap<K, V>
{
/** if the max is less than 0, there is no limit! */
private int maxObjects = -1;
public LRUMap()
{
super();
}
/**
*
* @param maxObjects
* maximum number to keep in the map
*/
public LRUMap(int maxObjects)
{
this();
this.maxObjects = maxObjects;
}
@Override
public boolean shouldRemove()
{
return maxObjects > 0 && this.size() > maxObjects;
}
}