1 /*
2 * $Source: /usr/cvsroot/melati/maven-dsd-plugin/src/main/java/org/melati/poem/prepro/FieldQualifier.java,v $
3 * $Revision: 1.25 $
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 import java.io.StreamTokenizer;
49 import java.io.IOException;
50
51 /**
52 * Abstract class from which all <tt>FieldQualifier</TT>s are derived.
53 */
54 public abstract class FieldQualifier {
55
56 /**
57 * Update the model.
58 *
59 * @param field the {@link FieldDef} to update
60 *
61 * @throws IllegalityException if there is a semantic contractiction
62 */
63 public abstract void apply(FieldDef field) throws IllegalityException;
64
65 /**
66 * Creates the appropriate type of <code>FieldQualifier</code>
67 * from the input stream.
68 *
69 * @param tokens the <code>StreamTokenizer</code> to get tokens from
70 *
71 * @throws ParsingDSDException if an unexpected token is encountered
72 * @throws IOException if something goes wrong with the file system
73 * @return a new <code>FieldQualifier</code> of the appropriate type
74 */
75 public static FieldQualifier from(StreamTokenizer tokens)
76 throws ParsingDSDException, IOException {
77 if (tokens.ttype != StreamTokenizer.TT_WORD)
78 throw new ParsingDSDException("<field qualifier>", tokens);
79 FieldQualifier it;
80 String kind = tokens.sval;
81 tokens.nextToken();
82 if (kind.equals("indexed"))
83 it = new IndexedFieldQualifier();
84 else if (kind.equals("unique"))
85 it = new UniqueFieldQualifier();
86 else if (kind.equals("primary"))
87 it = new TroidFieldQualifier();
88 else if (kind.equals("nullable"))
89 it = new NullableFieldQualifier();
90 else if (kind.equals("size"))
91 it = new SizeFieldQualifier(tokens);
92 else if (kind.equals("deleted"))
93 it = new DeletedFieldQualifier();
94 else if (kind.equals("displayorderpriority"))
95 it = new DisplayOrderPriorityFieldQualifier(tokens);
96 else if (kind.equals("sortdescending"))
97 it = new SortDescendingFieldQualifier();
98 else if (kind.equals("uneditable"))
99 it = new UneditableFieldQualifier();
100 else if (kind.equals("uncreateable"))
101 it = new UncreateableFieldQualifier();
102 else if (kind.equals("displayname"))
103 it = new DisplayNameFieldQualifier(tokens);
104 else if (kind.equals("displayorder"))
105 it = new DisplayOrderFieldQualifier(tokens);
106 else if (kind.equals("description"))
107 it = new DescriptionFieldQualifier(tokens);
108 else if (kind.equals("displaylevel"))
109 it = new DisplayLevelFieldQualifier(tokens);
110 else if (kind.equals("searchability"))
111 it = new SearchabilityFieldQualifier(tokens);
112 else if (kind.equals("compareonly"))
113 it = new CompareOnlyFieldQualifier();
114 else if (kind.equals("width"))
115 it = new WidthFieldQualifier(tokens);
116 else if (kind.equals("height"))
117 it = new HeightFieldQualifier(tokens);
118 else if (kind.equals("renderinfo"))
119 it = new RenderinfoFieldQualifier(tokens);
120 else if (kind.equals("integrityfix"))
121 it = new IntegrityfixFieldQualifier(tokens);
122 else if (kind.equals("precision"))
123 it = new PrecisionFieldQualifier(tokens);
124 else if (kind.equals("scale"))
125 it = new ScaleFieldQualifier(tokens);
126
127 else
128 throw new ParsingDSDException("<field qualifier>", tokens);
129 return it;
130 }
131 }