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.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    }