001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     * 
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     * 
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */ 
017    package org.apache.commons.betwixt.strategy;
018    
019    import java.beans.Introspector;
020    
021    /** 
022     * <p>A name mapper which converts types to a decapitalized String.</p>
023     *
024     * <p>This conversion decapitalizes in the standard java beans way 
025     * (as per <code>java.beans.Introspector</code>).
026     * This means that the first letter only will be decapitalized except 
027     * for the case where the first and second characters are both upper case.
028     * When both are upper case, then the name will be left alown.</p>
029     * 
030     * <p>So a bean type of <code>Foo</code> will be converted to the element name <code>"foo"</code.
031     * <code>FooBar</code> will be converted to <code>"fooBar"</code>.
032     * But <code>URL</code> will remain as <code>"URL"</code>.</p>
033     * 
034     * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
035     * @version $Revision: 471234 $
036     */
037    public class DecapitalizeNameMapper implements NameMapper {
038    
039        /**
040         * Decapitalize first letter unless both are upper case.
041         * (As per standard java beans behaviour.)
042         * 
043         * @param typeName the string to convert 
044         * @return decapitalized name as per <code>java.beans.Introspector</code>
045         */
046        public String mapTypeToElementName(String typeName) {
047            return Introspector.decapitalize( typeName );
048        }
049        
050        /**
051         * Outputs a brief description.
052         * @since 0.8
053         */
054        public String toString() {
055            return "Decapitalize Type Name Mapper";
056        }
057    }