1 /***
2 * Copyright (c) 2003 held jointly by the individual authors.
3 *
4 * This library is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License as published
6 * by the Free Software Foundation; either version 2.1 of the License, or
7 * (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; with out even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this library; if not, write to the Free Software Foundation,
16 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
17 *
18 * > http://www.gnu.org/copyleft/lesser.html
19 * > http://www.opensource.org/licenses/lgpl-license.php
20 */
21 package net.mlw.vlh.adapter.hibernate3.util.setter;
22
23 import java.text.ParseException;
24
25 import org.apache.commons.logging.Log;
26 import org.apache.commons.logging.LogFactory;
27 import org.hibernate.HibernateException;
28 import org.hibernate.Query;
29
30 /*** Sets a <code>Double</code> on a <code>Query</code>. Conversion from a string is provided using <code>Double.parseDouble()</code>.
31 *
32 * @author Matthew L. Wilson
33 * @version $Revision: 1.3 $ $Date: 2005/12/19 12:22:26 $
34 */
35 public class DoubleSetter extends AbstractSetter
36 {
37 /***
38 * Logger for this class
39 */
40 private static final Log LOGGER = LogFactory.getLog(DoubleSetter.class);
41
42 /***
43 * @see net.mlw.vlh.adapter.hibernate3.util.Setter#set(Query, String, Object)
44 */
45 public void set(Query query, String key, Object value) throws HibernateException, ParseException
46 {
47 if (value instanceof Double)
48 {
49 if (LOGGER.isInfoEnabled())
50 {
51 LOGGER.info("The key='" + key + "'s value is instance of a Double, now is converting to double.");
52 }
53 double doubleValue = ((Double) value).doubleValue();
54 query.setDouble(key, doubleValue);
55 }
56 else if (value instanceof String)
57 {
58 if (LOGGER.isInfoEnabled())
59 {
60 LOGGER.info("The key='" + key + "'s value is instance of a String, now is parsing to double.");
61 }
62 double doubleValue = Double.parseDouble((String) value);
63 query.setDouble(key, doubleValue);
64 }
65 else if (value == null)
66 {
67 if (LOGGER.isInfoEnabled())
68 {
69 LOGGER.info("The key='" + key + "'s value is null.");
70 }
71 query.setParameter(key, null);
72 }
73 else
74 {
75 throw new IllegalArgumentException("Cannot convert value of class " + value.getClass().getName() + " to double (key=" + key + ")");
76 }
77 }
78 }