| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ReferencePoemType |
|
| 1.6363636363636365;1.636 |
| 1 | /* | |
| 2 | * $Source$ | |
| 3 | * $Revision$ | |
| 4 | * | |
| 5 | * Copyright (C) 2000 William Chesters | |
| 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 | * William Chesters <williamc At paneris.org> | |
| 42 | * http://paneris.org/~williamc | |
| 43 | * Obrechtstraat 114, 2517VX Den Haag, The Netherlands | |
| 44 | */ | |
| 45 | ||
| 46 | package org.melati.poem; | |
| 47 | ||
| 48 | import java.util.Enumeration; | |
| 49 | import org.melati.poem.util.StringUtils; | |
| 50 | ||
| 51 | /** | |
| 52 | * A data type that is a reference to a {@link Persistent} object. | |
| 53 | */ | |
| 54 | 5 | public class ReferencePoemType extends IndexPoemType implements PersistentReferencePoemType { |
| 55 | ||
| 56 | private Table<?> targetTable; | |
| 57 | ||
| 58 | /** | |
| 59 | * Constructor. | |
| 60 | * | |
| 61 | * @param targetTable the Table the type refers to | |
| 62 | * @param nullable whether this type may contain null values | |
| 63 | */ | |
| 64 | public ReferencePoemType(Table<?> targetTable, boolean nullable) { | |
| 65 | 604 | super(nullable); |
| 66 | 604 | if (targetTable == null) |
| 67 | 2 | throw new NullPointerException(); |
| 68 | 602 | this.targetTable = targetTable; |
| 69 | 602 | } |
| 70 | ||
| 71 | /** | |
| 72 | * @see org.melati.poem.PersistentReferencePoemType#targetTable() | |
| 73 | */ | |
| 74 | @Override | |
| 75 | public Table<?> targetTable() { | |
| 76 | 2527 | return targetTable; |
| 77 | } | |
| 78 | ||
| 79 | /** | |
| 80 | * Returns an <code>Enumeration</code> of the possible raw values. | |
| 81 | * <p> | |
| 82 | * In this case the troids of rows in the referenced table. | |
| 83 | */ | |
| 84 | protected Enumeration<Integer> _possibleRaws() { | |
| 85 | 6 | return targetTable.troidSelection(null, null, false); |
| 86 | } | |
| 87 | ||
| 88 | protected void _assertValidCooked(Object cooked) | |
| 89 | throws ValidationPoemException { | |
| 90 | 6175 | if (!(cooked instanceof Persistent)) |
| 91 | 2 | throw new TypeMismatchPoemException(cooked, this); |
| 92 | ||
| 93 | 6173 | Persistent persistent = (Persistent)cooked; |
| 94 | ||
| 95 | 6173 | if (persistent.getTable() != targetTable) |
| 96 | 2 | throw new ValidationPoemException( |
| 97 | this, persistent, | |
| 98 | new TableMismatchPoemException(persistent, targetTable)); | |
| 99 | 6171 | } |
| 100 | ||
| 101 | protected Object _cookedOfRaw(Object raw) throws NoSuchRowPoemException { | |
| 102 | 60 | return targetTable.getObject((Integer)raw); |
| 103 | } | |
| 104 | ||
| 105 | protected Integer _rawOfCooked(Object cooked) { | |
| 106 | 5 | return ((Persistent)cooked).troid(); |
| 107 | } | |
| 108 | ||
| 109 | protected String _stringOfCooked(Object cooked, | |
| 110 | PoemLocale locale, int style) | |
| 111 | throws PoemException { | |
| 112 | 52 | return ((Persistent)cooked).displayString(locale, style); |
| 113 | } | |
| 114 | ||
| 115 | protected boolean _canRepresent(SQLPoemType<?> other) { | |
| 116 | 16 | return |
| 117 | other instanceof PersistentReferencePoemType && | |
| 118 | 14 | ((PersistentReferencePoemType)other).targetTable() == targetTable(); |
| 119 | } | |
| 120 | ||
| 121 | protected void _saveColumnInfo(ColumnInfo columnInfo) | |
| 122 | throws AccessPoemException { | |
| 123 | 526 | columnInfo.setTypefactoryCode(targetTable.tableInfoID()); |
| 124 | 526 | } |
| 125 | ||
| 126 | /** | |
| 127 | * {@inheritDoc} | |
| 128 | * @see org.melati.poem.BasePoemType#toString() | |
| 129 | */ | |
| 130 | public String toString() { | |
| 131 | 11 | return |
| 132 | 11 | "reference to " + targetTable.getName() + |
| 133 | 11 | " (" + super.toString() + ")"; |
| 134 | } | |
| 135 | ||
| 136 | /** | |
| 137 | * {@inheritDoc} | |
| 138 | * @see org.melati.poem.PoemType#toDsdType() | |
| 139 | */ | |
| 140 | public String toDsdType() { | |
| 141 | 2 | return StringUtils.capitalised(targetTable.getName()); |
| 142 | } | |
| 143 | } |