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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.math.BigInteger ;
16 import java.sql.PreparedStatement ;
17 import java.sql.ResultSet ;
18 import java.sql.SQLException ;
19 import java.sql.Types ;
20 import javax.jdo.JDODataStoreException;
21
22
23 public class BigIntegerMapping extends ColumnMapping
24 {
25 public BigIntegerMapping(DatabaseAdapter dba, Class type)
26 {
27 super(dba, type);
28
29 initTypeInfo();
30 }
31
32 public BigIntegerMapping(Column col)
33 {
34 super(col);
35
36 col.checkInteger();
37
38 initTypeInfo();
39 }
40
41 public BigIntegerMapping(ClassBaseTable table, int relativeFieldNumber)
42 {
43 this(table.newColumn(relativeFieldNumber));
44 }
45
46 protected TypeInfo getTypeInfo()
47 {
48 if (col != null && col.isExactPrecision())
49 return dba.getTypeInfo(new int[] { Types.NUMERIC, Types.DECIMAL });
50 else
51 return dba.getTypeInfo(new int[] { Types.DECIMAL, Types.NUMERIC });
52 }
53
54 public void setObject(PersistenceManager pm, PreparedStatement ps, int param, Object value)
55 {
56 try
57 {
58 if (value == null)
59 ps.setNull(param, typeInfo.dataType);
60 else
61 ps.setBigDecimal(param, new BigDecimal ((BigInteger )value));
62 }
63 catch (SQLException e)
64 {
65 throw new JDODataStoreException("Can't set BigInteger parameter: value = " + value, e);
66 }
67 }
68
69 public Object getObject(PersistenceManager pm, ResultSet rs, int param)
70 {
71 try
72 {
73 BigDecimal value = rs.getBigDecimal(param);
74
75 if (value == null)
76 return null;
77 else
78 return value.toBigInteger();
79 }
80 catch (SQLException e)
81 {
82 throw new JDODataStoreException("Can't get BigInteger result: param = " + param, e);
83 }
84 }
85
86 public SQLExpression newSQLLiteral(QueryStatement qs, Object value)
87 {
88 return new IntegerLiteral(qs, (BigInteger )value);
89 }
90
91 public SQLExpression newSQLExpression(QueryStatement qs, QueryStatement.QueryColumn qsc, String fieldName)
92 {
93 return new NumericExpression(qs, qsc);
94 }
95 }
96 |
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