001    /**
002     * Copyright (c) 2000-2013 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.portlet.dynamicdatamapping.util;
016    
017    import java.util.HashMap;
018    
019    /**
020     * @author Eduardo Lundgren
021     * @author Marcellus Tavares
022     */
023    public class DDMFieldsCounter extends HashMap<Object, Integer> {
024    
025            @Override
026            public Integer get(Object key) {
027                    if (!containsKey(key)) {
028                            put(key, 0);
029                    }
030    
031                    return super.get(key);
032            }
033    
034            public int incrementKey(Object key) {
035                    int value = get(key);
036    
037                    put(key, ++value);
038    
039                    return value;
040            }
041    
042    }