001    package org.apache.ojb.broker.accesslayer.conversions;
002    
003    /* Copyright 2004-2005 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    
018    import java.sql.Timestamp;
019    import java.util.Calendar;
020    import java.util.GregorianCalendar;
021    
022    /**
023     * This implementation of the {@link FieldConversion} interface converts
024     * between {@link java.util.Calendar} and {@link java.sql.Timestamp}. When
025     * convert sql to java always a {@link java.util.GregorianCalendar} object
026     * is returned.
027     *
028     * @author Guillaume Nodet
029     * @version $Id: Calendar2TimestampFieldConversion.java,v 1.1 2007-08-24 22:17:31 ewestfal Exp $
030     */
031    public class Calendar2TimestampFieldConversion implements FieldConversion
032    {
033        /**
034         * @see FieldConversion#javaToSql(Object)
035         */
036        public Object javaToSql(Object source)
037        {
038            if (source instanceof Calendar)
039            {
040                // only valid >= JDK 1.4
041                // return new Date(((Calendar) source).getTimeInMillis());
042                return new Timestamp(((Calendar) source).getTime().getTime());
043            }
044            else
045            {
046                return source;
047            }
048        }
049    
050        /**
051         * @see FieldConversion#sqlToJava(Object)
052         */
053        public Object sqlToJava(Object source)
054        {
055            if (source instanceof Timestamp)
056            {
057                GregorianCalendar cal = new GregorianCalendar();
058                // only valid >= JDK 1.4
059                // cal.setTimeInMillis(((Date) source).getTime());
060                cal.setTime(((Timestamp) source));
061                return cal;
062            }
063            else
064            {
065                return source;
066            }
067        }
068    }
069    
070