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Java > Open Source Codes > net > mlw > vlh > adapter > hibernate > util > setter > LongSetter


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.hibernate.util.setter;
22
23 import java.text.ParseException JavaDoc;
24
25 import net.sf.hibernate.HibernateException;
26 import net.sf.hibernate.Query;
27
28 import org.apache.commons.logging.Log;
29 import org.apache.commons.logging.LogFactory;
30
31 /** Sets a <code>java.lang.Long</code> on a <code>Query</code>. Conversion from a string is provided using <code>Long.parseLong()</code>.
32  *
33  * @author Matthew L. Wilson
34  * @version $Revision: 1.5 $ $Date: 2005/12/19 12:22:30 $
35  */
36 public class LongSetter extends AbstractSetter
37 {
38
39    /**
40     * Logger for this class
41     */
42    private static final Log LOGGER = LogFactory.getLog(LongSetter.class);
43
44    /**
45     * @see net.mlw.vlh.adapter.hibernate.util.Setter#set(Query, String, Object)
46     */
47    public void set(Query query, String JavaDoc key, Object JavaDoc value) throws HibernateException, ParseException JavaDoc
48    {
49       if (value instanceof Long JavaDoc)
50       {
51          if (LOGGER.isInfoEnabled())
52          {
53             LOGGER.info("The key='" + key + "'s value is instance of a Long, now is converting to long.");
54          }
55          query.setLong(key, ((Long JavaDoc) value).longValue());
56       }
57       else if (value instanceof String JavaDoc)
58       {
59          if (LOGGER.isInfoEnabled())
60          {
61             LOGGER.info("The key='" + key + "'s value is instance of a String, now is parsing to long.");
62          }
63          long longValue = Long.parseLong((String JavaDoc) value);
64          query.setLong(key, longValue);
65       }
66       else if (value == null)
67       {
68          if (LOGGER.isInfoEnabled())
69          {
70             LOGGER.info("The key='" + key + "'s value is null.");
71          }
72          query.setParameter(key, null);
73       }
74       else
75       {
76          throw new IllegalArgumentException JavaDoc("Cannot convert value of class " + value.getClass().getName() + " to long (key=" + key + ")");
77       }
78    }
79 }
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