CounterHolder.java |
1 /** 2 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or modify it under 5 * the terms of the GNU Lesser General Public License as published by the Free 6 * Software Foundation; either version 2.1 of the License, or (at your option) 7 * any later version. 8 * 9 * This library is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 11 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more 12 * details. 13 */ 14 15 package com.liferay.counter.model; 16 17 import java.util.concurrent.atomic.AtomicLong; 18 19 /** 20 * <a href="CounterHolder.java.html"><b><i>View Source</i></b></a> 21 * 22 * @author Shuyang Zhou 23 */ 24 public class CounterHolder { 25 26 public CounterHolder(long initValue, long rangeMax) { 27 _counter = new AtomicLong(initValue); 28 _rangeMax = rangeMax; 29 } 30 31 public long addAndGet(long delta) { 32 return _counter.addAndGet(delta); 33 } 34 35 public long getCurrentValue() { 36 return _counter.get(); 37 } 38 39 public long getRangeMax() { 40 return _rangeMax; 41 } 42 43 private final AtomicLong _counter; 44 private final long _rangeMax; 45 46 }