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Java > Open Source Codes > org > dbunit > dataset > datatype > FloatDataType


1 /*
2  *
3  * The DbUnit Database Testing Framework
4  * Copyright (C)2002-2004, DbUnit.org
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  */

21
22 package org.dbunit.dataset.datatype;
23
24 import org.dbunit.dataset.ITable;
25
26 import java.math.BigDecimal JavaDoc;
27 import java.sql.PreparedStatement JavaDoc;
28 import java.sql.ResultSet JavaDoc;
29 import java.sql.SQLException JavaDoc;
30 import java.sql.Types JavaDoc;
31
32 /**
33  * @author Manuel Laflamme
34  * @version $Revision: 1.14 $
35  */

36 public class FloatDataType extends AbstractDataType
37 {
38     FloatDataType()
39     {
40         super("REAL", Types.REAL, Float JavaDoc.class, true);
41     }
42
43     ////////////////////////////////////////////////////////////////////////////
44
// DataType class
45

46     public Object JavaDoc typeCast(Object JavaDoc value) throws TypeCastException
47     {
48         if (value == null || value == ITable.NO_VALUE)
49         {
50             return null;
51         }
52
53         if (value instanceof Number JavaDoc)
54         {
55             return new Float JavaDoc(((Number JavaDoc)value).floatValue());
56         }
57
58         try
59         {
60             return typeCast(new BigDecimal JavaDoc(value.toString()));
61         }
62         catch (java.lang.NumberFormatException JavaDoc e)
63         {
64             throw new TypeCastException(value, this, e);
65         }
66     }
67
68     public Object JavaDoc getSqlValue(int column, ResultSet JavaDoc resultSet)
69             throws SQLException JavaDoc, TypeCastException
70     {
71         float value = resultSet.getFloat(column);
72         if (resultSet.wasNull())
73         {
74             return null;
75         }
76         return new Float JavaDoc(value);
77     }
78
79     public void setSqlValue(Object JavaDoc value, int column, PreparedStatement JavaDoc statement)
80             throws SQLException JavaDoc, TypeCastException
81     {
82         statement.setFloat(column, ((Number JavaDoc)typeCast(value)).floatValue());
83     }
84 }
85
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