| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| BigDecimalPoemType |
|
| 2.1;2.1 |
| 1 | /* | |
| 2 | * $Source$ | |
| 3 | * $Revision$ | |
| 4 | * | |
| 5 | * Copyright (C) 2003 Samuel Goldstein | |
| 6 | * | |
| 7 | * Part of Melati (http://melati.org), a framework for the rapid | |
| 8 | * development of clean, maintainable web applications. | |
| 9 | * | |
| 10 | * Melati is free software; Permission is granted to copy, distribute | |
| 11 | * and/or modify this software under the terms either: | |
| 12 | * | |
| 13 | * a) the GNU General Public License as published by the Free Software | |
| 14 | * Foundation; either version 2 of the License, or (at your option) | |
| 15 | * any later version, | |
| 16 | * | |
| 17 | * or | |
| 18 | * | |
| 19 | * b) any version of the Melati Software License, as published | |
| 20 | * at http://melati.org | |
| 21 | * | |
| 22 | * You should have received a copy of the GNU General Public License and | |
| 23 | * the Melati Software License along with this program; | |
| 24 | * if not, write to the Free Software Foundation, Inc., | |
| 25 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the | |
| 26 | * GNU General Public License and visit http://melati.org to obtain the | |
| 27 | * Melati Software License. | |
| 28 | * | |
| 29 | * Feel free to contact the Developers of Melati (http://melati.org), | |
| 30 | * if you would like to work out a different arrangement than the options | |
| 31 | * outlined here. It is our intention to allow Melati to be used by as | |
| 32 | * wide an audience as possible. | |
| 33 | * | |
| 34 | * This program is distributed in the hope that it will be useful, | |
| 35 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 36 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 37 | * GNU General Public License for more details. | |
| 38 | * | |
| 39 | * Contact details for copyright holder: | |
| 40 | * | |
| 41 | * Samuel Goldstein <samuel At 1969.ws> | |
| 42 | * http://www.1969.ws | |
| 43 | * 13101 W. Washington Blvd Suite 248, Los Angeles, CA 90066 USA | |
| 44 | */ | |
| 45 | ||
| 46 | package org.melati.poem; | |
| 47 | ||
| 48 | import java.sql.Types; | |
| 49 | import java.sql.ResultSet; | |
| 50 | import java.sql.PreparedStatement; | |
| 51 | import java.sql.SQLException; | |
| 52 | import java.math.BigDecimal; | |
| 53 | import org.melati.poem.dbms.Dbms; | |
| 54 | ||
| 55 | /** | |
| 56 | * Java "BigDecimal", dependant upon the database/SQL implementation. | |
| 57 | * | |
| 58 | * By default, this is a 22 digit number, with 2 digits after the | |
| 59 | * decimal. | |
| 60 | * */ | |
| 61 | 20 | public class BigDecimalPoemType extends FixedPointAtomPoemType<BigDecimal> { |
| 62 | ||
| 63 | /** | |
| 64 | * Constructor. | |
| 65 | * | |
| 66 | * @param nullable whether nullable | |
| 67 | */ | |
| 68 | public BigDecimalPoemType(boolean nullable) { | |
| 69 | 108 | super(Types.DECIMAL, "DECIMAL", nullable, 22, 2); |
| 70 | 108 | } |
| 71 | ||
| 72 | /** | |
| 73 | * Constructor. | |
| 74 | * | |
| 75 | * @param nullable whether nullable | |
| 76 | * @param precision defaults to 22 | |
| 77 | * @param scale defaults to 2 | |
| 78 | */ | |
| 79 | public BigDecimalPoemType(boolean nullable, int precision, int scale) { | |
| 80 | 294 | super(Types.DECIMAL, "DECIMAL", nullable, precision, scale); |
| 81 | // because a newly added column of this type won't have valid | |
| 82 | // numbers, we fix that here... | |
| 83 | // This does not appear to be needed - timp 01/01/2006 | |
| 84 | /* | |
| 85 | if (precision <= 0) { | |
| 86 | setPrecision(22); | |
| 87 | } | |
| 88 | if (scale < 0) { | |
| 89 | setScale(2); | |
| 90 | } | |
| 91 | */ | |
| 92 | 294 | } |
| 93 | ||
| 94 | protected void _assertValidRaw(Object raw) { | |
| 95 | 40 | if (raw != null && !(raw instanceof BigDecimal)) |
| 96 | 8 | throw new TypeMismatchPoemException(raw, this); |
| 97 | 32 | } |
| 98 | ||
| 99 | protected BigDecimal _getRaw(ResultSet rs, int col) throws SQLException { | |
| 100 | 6 | synchronized (rs) { |
| 101 | 2 | BigDecimal x = rs.getBigDecimal(col); |
| 102 | 2 | return rs.wasNull() ? null : x; } |
| 103 | } | |
| 104 | ||
| 105 | protected void _setRaw(PreparedStatement ps, int col, Object real) | |
| 106 | throws SQLException { | |
| 107 | 6 | ps.setBigDecimal(col, ((BigDecimal)real)); |
| 108 | 2 | } |
| 109 | ||
| 110 | protected BigDecimal _rawOfString(String rawString) throws ParsingPoemException { | |
| 111 | try { | |
| 112 | 14 | return new BigDecimal(rawString); |
| 113 | 2 | } catch (NumberFormatException e) { |
| 114 | 2 | throw new ParsingPoemException(this, rawString, e); |
| 115 | } | |
| 116 | } | |
| 117 | ||
| 118 | protected String _sqlDefinition(Dbms dbms) { | |
| 119 | try { | |
| 120 | 13 | return dbms.getFixedPtSqlDefinition(getScale(), getPrecision()); |
| 121 | 2 | } catch (SQLException e) { |
| 122 | 2 | throw new SQLSeriousPoemException(e); |
| 123 | } | |
| 124 | } | |
| 125 | ||
| 126 | /** | |
| 127 | * Whilst BigDecimal cannot represent all Doubles it can represent | |
| 128 | * legacy money doubles, so we allow it to enable upgrades from Doubles | |
| 129 | * to BigDecimals. | |
| 130 | * @see org.melati.poem.BasePoemType#_canRepresent(org.melati.poem.SQLPoemType) | |
| 131 | */ | |
| 132 | protected boolean _canRepresent(SQLPoemType<?> other) { | |
| 133 | 144 | return // sqlTypeCode() == other.sqlTypeCode() && //commented out to allow doubles |
| 134 | other instanceof BigDecimalPoemType || other instanceof DoublePoemType; | |
| 135 | } | |
| 136 | ||
| 137 | /** | |
| 138 | * @return the field type used in the Data Structure Definition language. | |
| 139 | */ | |
| 140 | public String toDsdType() { | |
| 141 | 4 | return "BigDecimal"; |
| 142 | } | |
| 143 | ||
| 144 | protected void _saveColumnInfo(ColumnInfo columnInfo) | |
| 145 | throws AccessPoemException { | |
| 146 | 126 | columnInfo.setTypefactory(PoemTypeFactory.BIGDECIMAL); |
| 147 | 126 | columnInfo.setPrecision(getPrecision()); |
| 148 | 126 | columnInfo.setScale(getScale()); |
| 149 | 126 | } |
| 150 | ||
| 151 | } |