Calendar2DateFieldConversion


1   package org.apache.ojb.broker.accesslayer.conversions;
2   
3   /* Copyright 2004-2005 The Apache Software Foundation
4    *
5    * Licensed under the Apache License, Version 2.0 (the "License");
6    * you may not use this file except in compliance with the License.
7    * You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  import java.sql.Date  ;
19  import java.util.Calendar  ;
20  import java.util.GregorianCalendar  ;
21  
22  /**
23   * This implementation of the {@link FieldConversion} interface converts
24   * between {@link java.util.Calendar} and {@link java.sql.Date}. When
25   * convert sql to java always a {@link java.util.GregorianCalendar}
26   * object is returned.
27   *
28   * @author Guillaume Nodet
29   * @version $Id: Calendar2DateFieldConversion.java,v 1.2.2.1 2005/12/21 22:23:38 tomdz Exp $
30   */
31  public class Calendar2DateFieldConversion implements FieldConversion
32  {
33      /**
34       * @see FieldConversion#javaToSql(Object)
35       */
36      public Object   javaToSql(Object   source)
37      {
38          if (source instanceof Calendar  )
39          {
40              // only valid >= JDK 1.4
41              // return new Date(((Calendar) source).getTimeInMillis());
42              return new Date  (((Calendar  ) source).getTime().getTime());
43          }
44          else
45          {
46              return source;
47          }
48      }
49  
50      /**
51       * @see FieldConversion#sqlToJava(Object)
52       */
53      public Object   sqlToJava(Object   source)
54      {
55          if (source instanceof Date  )
56          {
57              GregorianCalendar   cal = new GregorianCalendar  ();
58              cal.setTime(((Date  ) source));
59              return cal;
60          }
61          else
62          {
63              return source;
64          }
65      }
66  }
67  
68  
69
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