1 /*
2 * $Source$
3 * $Revision$
4 *
5 * Copyright (C) 2001 Myles Chippendale
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 * Myles Chippendale <mylesc@paneris.org>
42 * http://paneris.org/
43 * 29 Stanley Road, Oxford, UK
44 */
45
46 package org.melati.poem.prepro;
47
48 import java.util.Hashtable;
49
50 /**
51 * A store of naming information for a <code>Table</code>.
52 */
53 public class TableNamingStore {
54
55 /**
56 * Constructor.
57 */
58 public TableNamingStore() {
59 super();
60 }
61
62 Hashtable<String,TableNamingInfo> tableInfoByPersistentShortName = new Hashtable<String,TableNamingInfo>();
63 Hashtable<String,TableNamingInfo> tableInfoByTableOrPersistentFQName = new Hashtable<String,TableNamingInfo>();
64 boolean debug = false;
65
66 /**
67 * Add a table to the naming store.
68 * @param dsd TODO
69 * @param name the name of this table
70 * @param superclass not null if table extends another
71 * @param packageName fully qualified java package name
72 * @throws HiddenTableException if this table has the same name as
73 * one already encountered but does not extend it
74 * @return a newly created <code>TableNamingInfo</code>
75 */
76 public TableNamingInfo add(DSD dsd, String packageName, String name,
77 String superclass)
78 throws HiddenTableException {
79
80 TableNamingInfo info = new TableNamingInfo(dsd.packageName, dsd.projectName, name);
81
82 // superclass could be FQ (e.g. 'org.melati.poem.User')
83 // or not (e.g. 'User')
84 // We make sure it ends up FQ
85 if (superclass != null) {
86 if (superclass.indexOf('.') == -1) {
87 TableNamingInfo sup = (TableNamingInfo)tableInfoByPersistentShortName.
88 get(superclass);
89 if (sup != null) {
90 superclass = sup.objectFQName;
91 } else {
92 superclass = dsd.packageName + "." + superclass;
93 }
94 }
95
96 TableNamingInfo sup = (TableNamingInfo)tableInfoByTableOrPersistentFQName.get(superclass);
97 if (sup != null) {
98 info.superclass = sup;
99 } else {
100 String pack = superclass.substring(0, superclass.lastIndexOf("."));
101 String nam = superclass.substring(superclass.lastIndexOf(".")+1);
102 info.superclass = add(dsd, pack, nam, null);
103 }
104 }
105
106 TableNamingInfo old = tableInfoByPersistentShortName.put(info.capitalisedShortName, info);
107 System.err.println("Putting " + info.capitalisedShortName + ":" + old);
108 if (old != null) {
109 if (old != info.superclass) {
110 throw new HiddenTableException(name,
111 old.objectFQName);
112 }
113 old.hidden = true;
114 info.hidesOther = true;
115 info.extended = old;
116 dsd.hasAnExtenedTable = true;
117 }
118 tableInfoByTableOrPersistentFQName.put(info.objectFQName, info);
119 tableInfoByTableOrPersistentFQName.put(info.tableMainClassFQName(), info);
120
121 return info;
122 }
123
124 }