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@paneris.org>
42 * http://paneris.org/~williamc
43 * Obrechtstraat 114, 2517VX Den Haag, The Netherlands
44 */
45
46 package org.melati.poem.prepro;
47
48 /**
49 * A <tt>FieldQualifier</tt> which defines whether
50 * a <tt>Field</tt> is a <tt>TroidField</tt>.
51 *
52 * A Table Row Object Id field is expected in every <tt>Table</tt>.
53 *
54 * See org.melati.poem.TroidPoemType
55 */
56
57 public class TroidFieldQualifier extends FieldQualifier {
58
59 /**
60 * Constructor.
61 */
62 public TroidFieldQualifier() {
63 }
64
65 /**
66 * Update the model.
67 *
68 * @param field the {@link FieldDef} to update
69 *
70 * @throws IllegalityException if there is a semantic contractiction
71 */
72 public void apply(FieldDef field) throws IllegalityException {
73 if (!field.typeShortName.equals("Integer") || field.isNullable())
74 throw new TroidTypeException(field);
75 field.setTroidColumn(true);
76 }
77 }