01: /*
02:
03: Derby - Class org.apache.derby.iapi.types.J2SEDataValueFactory
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (the "License"); you may not use this file except in compliance with
10: the License. You may obtain a copy of the License at
11:
12: http://www.apache.org/licenses/LICENSE-2.0
13:
14: Unless required by applicable law or agreed to in writing, software
15: distributed under the License is distributed on an "AS IS" BASIS,
16: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: See the License for the specific language governing permissions and
18: limitations under the License.
19:
20: */
21:
22: package org.apache.derby.iapi.types;
23:
24: import java.util.Properties;
25:
26: import org.apache.derby.iapi.error.StandardException;
27:
28: /**
29: * DataValueFactory implementation for J2SE.
30: * Uses SQLDecimal for DECIMAL which implements
31: * DECIMAL functionality using java.math.BigDecimal.
32: *
33: * @see DataValueFactory
34: */
35: public class J2SEDataValueFactory extends DataValueFactoryImpl {
36: public J2SEDataValueFactory() {
37: }
38:
39: public void boot(boolean create, Properties properties)
40: throws StandardException {
41:
42: NumberDataType.MINLONG_MINUS_ONE = SQLDecimal.MINLONG_MINUS_ONE;
43: NumberDataType.MAXLONG_PLUS_ONE = SQLDecimal.MAXLONG_PLUS_ONE;
44:
45: super .boot(create, properties);
46: }
47:
48: public NumberDataValue getDecimalDataValue(Long value,
49: NumberDataValue previous) throws StandardException {
50: if (previous == null)
51: previous = new SQLDecimal();
52:
53: previous.setValue(value);
54: return previous;
55: }
56:
57: public NumberDataValue getDecimalDataValue(String value)
58: throws StandardException {
59: if (value != null)
60: return new SQLDecimal(value);
61: else
62: return new SQLDecimal();
63: }
64:
65: public NumberDataValue getNullDecimal(NumberDataValue dataValue) {
66: if (dataValue == null) {
67: return new SQLDecimal();
68: } else {
69: dataValue.setToNull();
70: return dataValue;
71: }
72: }
73: }
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