001 /** 002 * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved. 003 * 004 * The contents of this file are subject to the terms of the Liferay Enterprise 005 * Subscription License ("License"). You may not use this file except in 006 * compliance with the License. You can obtain a copy of the License by 007 * contacting Liferay, Inc. See the License for the specific language governing 008 * permissions and limitations under the License, including but not limited to 009 * distribution rights of the Software. 010 * 011 * 012 * 013 */ 014 015 package com.liferay.util; 016 017 /** 018 * @author Brian Wing Shun Chan 019 */ 020 public class SimpleCounter { 021 022 public SimpleCounter() { 023 this(_DEFAULT_COUNTER); 024 } 025 026 public SimpleCounter(long counter) { 027 _counter = counter; 028 } 029 030 public synchronized long get() { 031 return _counter++; 032 } 033 034 public String getString() { 035 return String.valueOf(get()); 036 } 037 038 private static final long _DEFAULT_COUNTER = 1; 039 040 private long _counter; 041 042 }