001    // Copyright 2004, 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.util.io;
016    
017    import org.apache.tapestry.services.DataSqueezer;
018    
019    /**
020     * Squeezes a Character.
021     * 
022     * @author Howard Lewis Ship
023     * @since 2.2
024     */
025    
026    public class CharacterAdaptor implements SqueezeAdaptor
027    {
028        private static final String PREFIX = "c";
029    
030        private static final char PREFIX_CH = 'c';
031    
032        public String getPrefix()
033        {
034            return PREFIX;
035        }
036    
037        public Class getDataClass()
038        {
039            return Character.class;
040        }
041    
042        public String squeeze(DataSqueezer squeezer, Object data)
043        {
044            Character charData = (Character) data;
045            char value = charData.charValue();
046    
047            char[] buffer = new char[]
048            { PREFIX_CH, value };
049    
050            return new String(buffer);
051        }
052    
053        public Object unsqueeze(DataSqueezer squeezer, String string)
054        {
055            return new Character(string.charAt(1));
056        }
057    
058    }