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    }