001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.counter.model;
016    
017    import java.util.concurrent.atomic.AtomicLong;
018    
019    /**
020     * @author Shuyang Zhou
021     */
022    public class CounterHolder {
023    
024            public CounterHolder(long initValue, long rangeMax) {
025                    _counter = new AtomicLong(initValue);
026                    _rangeMax = rangeMax;
027            }
028    
029            public long addAndGet(long delta) {
030                    return _counter.addAndGet(delta);
031            }
032    
033            public long getCurrentValue() {
034                    return _counter.get();
035            }
036    
037            public long getRangeMax() {
038                    return _rangeMax;
039            }
040    
041            private final AtomicLong _counter;
042            private final long _rangeMax;
043    
044    }