001    package org.apache.ojb.broker.accesslayer.conversions;
002    
003    /* Copyright 2002-2005 The Apache Software Foundation
004     *
005     * Licensed under the Apache License, Version 2.0 (the "License");
006     * you may not use this file except in compliance with the License.
007     * 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    import org.apache.ojb.broker.util.GUID;
018    
019    /**
020     * this implementation of the FieldConversion interface converts
021     * between GUIDs and their String representation.
022     * @author Thomas Mahler
023     * @version $Id: GUID2StringFieldConversion.java,v 1.1 2007-08-24 22:17:31 ewestfal Exp $
024     */
025    public class GUID2StringFieldConversion implements FieldConversion
026    {
027    
028        /**
029         * @see FieldConversion#javaToSql(Object)
030         */
031        public Object javaToSql(Object source)
032        {
033            if (source instanceof GUID)
034            {
035                    GUID guid = (GUID) source;
036                    return guid.toString();
037            }
038            return source;
039        }
040    
041        /**
042         * @see FieldConversion#sqlToJava(Object)
043         */
044        public Object sqlToJava(Object source)
045        {           
046            if (source instanceof String)
047            {
048                    return new GUID((String) source);
049            }
050            return source;
051        }
052    
053    }