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/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed 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 leap.lang.collection;

import java.util.LinkedHashMap;
import java.util.Map;

public class SimpleLRUMap extends LinkedHashMap {

	private static final long serialVersionUID = -1381515645732588952L;

    private final int maxSize;

    public SimpleLRUMap(int maxSize){
        this(maxSize, 16, 0.75f, false);
    }

    public SimpleLRUMap(int maxSize, int initialCapacity, float loadFactor, boolean accessOrder){
        super(initialCapacity, loadFactor, accessOrder);
        this.maxSize = maxSize;
    }

    protected boolean removeEldestEntry(Map.Entry eldest) {
        return this.size() > this.maxSize;
    }
}