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1
10
11 package com.triactive.jdo.store;
12
13 import com.triactive.jdo.PersistenceManager;
14 import java.math.BigDecimal  ;
15 import java.sql.PreparedStatement ;
16 import java.sql.ResultSet ;
17 import java.sql.SQLException ;
18 import java.sql.Types ;
19 import javax.jdo.JDODataStoreException;
20
21
22 public class BigDecimalMapping extends ColumnMapping
23 {
24 public BigDecimalMapping(DatabaseAdapter dba, Class type)
25 {
26 super(dba, type);
27
28 initTypeInfo();
29 }
30
31 public BigDecimalMapping(Column col)
32 {
33 super(col);
34
35 col.checkDecimal();
36
37 initTypeInfo();
38 }
39
40 public BigDecimalMapping(ClassBaseTable table, int relativeFieldNumber)
41 {
42 this(table.newColumn(relativeFieldNumber));
43 }
44
45 protected TypeInfo getTypeInfo()
46 {
47 if (col != null && col.isExactPrecision())
48 return dba.getTypeInfo(new int[] { Types.NUMERIC, Types.DECIMAL });
49 else
50 return dba.getTypeInfo(new int[] { Types.DECIMAL, Types.NUMERIC });
51 }
52
53 public void setObject(PersistenceManager pm, PreparedStatement ps, int param, Object value)
54 {
55 try
56 {
57 if (value == null)
58 ps.setNull(param, typeInfo.dataType);
59 else
60 ps.setBigDecimal(param, (BigDecimal )value);
61 }
62 catch (SQLException e)
63 {
64 throw dba.newDataStoreException("Can't set BigDecimal parameter: value = " + value, e);
65 }
66 }
67
68 public Object getObject(PersistenceManager pm, ResultSet rs, int param)
69 {
70 try
71 {
72 return rs.getBigDecimal(param);
73 }
74 catch (SQLException e)
75 {
76 throw dba.newDataStoreException("Can't get BigDecimal result: param = " + param, e);
77 }
78 }
79
80 public SQLExpression newSQLLiteral(QueryStatement qs, Object value)
81 {
82 return new FloatingPointLiteral(qs, (BigDecimal )value);
83 }
84
85 public SQLExpression newSQLExpression(QueryStatement qs, QueryStatement.QueryColumn qsc, String fieldName)
86 {
87 return new NumericExpression(qs, qsc);
88 }
89 }
90 |
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