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Java > Open Source Codes > org > dbforms > event > DbEventInterceptorSupport


1 /*
2  * $Header: /cvsroot/jdbforms/dbforms/src/org/dbforms/event/DbEventInterceptorSupport.java,v 1.18 2004/11/12 14:12:34 hkollmann Exp $
3  * $Revision: 1.18 $
4  * $Date: 2004/11/12 14:12:34 $
5  *
6  * DbForms - a Rapid Application Development Framework
7  * Copyright (C) 2001 Joachim Peer <joepeer@excite.com>
8  *
9  * This library is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with this library; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22  */
23
24 package org.dbforms.event;
25
26 import org.dbforms.config.DbEventInterceptor;
27 import org.dbforms.config.DbEventInterceptorData;
28 import org.dbforms.config.DbFormsConfig;
29 import org.dbforms.config.Field;
30 import org.dbforms.config.FieldValue;
31 import org.dbforms.config.FieldValues;
32 import org.dbforms.config.MultipleValidationException;
33 import org.dbforms.config.Table;
34 import org.dbforms.config.ValidationException;
35
36 import java.sql.Connection JavaDoc;
37
38 import java.util.Map JavaDoc;
39
40 import javax.servlet.http.HttpServletRequest JavaDoc;
41
42
43
44 /**
45  * convenience class
46  *
47  * @author Joe Peer
48  */
49 public class DbEventInterceptorSupport implements DbEventInterceptor {
50    private Map JavaDoc params;
51
52    /* (non-Javadoc)
53     * @see org.dbforms.config.DbEventInterceptor#setParameterMap(java.util.Map)
54     */
55    public void setParameterMap(Map JavaDoc params) {
56       this.params = params;
57    }
58
59
60    /* (non-Javadoc)
61     * @see org.dbforms.config.DbEventInterceptor#getParameterMap()
62     */
63    public Map JavaDoc getParameterMap() {
64       return params;
65    }
66
67    /* (non-Javadoc)
68     * @see org.dbforms.config.DbEventInterceptor#getParameterMap()
69     */
70    public String JavaDoc getParameter(String JavaDoc key) {
71       return (String JavaDoc)params.get(key);
72    }
73
74
75    /* (non-Javadoc)
76     * @see org.dbforms.config.DbEventInterceptor#postAddRow(org.dbforms.config.DbEventInterceptorData)
77     */
78    public void postAddRow(DbEventInterceptorData data) {
79    }
80
81
82    /* (non-Javadoc)
83     * @see org.dbforms.config.DbEventInterceptor#postDelete(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
84     */
85    public void postDelete(DbEventInterceptorData data) {
86       postDelete(data.getRequest(), data.getConfig(), data.getConnection());
87    }
88
89
90    /**
91     * DOCUMENT ME!
92     *
93     * @param request DOCUMENT ME!
94     * @param config DOCUMENT ME!
95     * @param con DOCUMENT ME!
96     *
97     * @deprecated
98     */
99    public void postDelete(HttpServletRequest JavaDoc request,
100                           DbFormsConfig config,
101                           Connection JavaDoc con) {
102    }
103
104
105    /* (non-Javadoc)
106     * @see org.dbforms.config.DbEventInterceptor#postInsert(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
107     */
108    public void postInsert(DbEventInterceptorData data) {
109       postInsert(data.getRequest(), data.getConfig(), data.getConnection());
110    }
111
112
113    /**
114     * DOCUMENT ME!
115     *
116     * @param request DOCUMENT ME!
117     * @param config DOCUMENT ME!
118     * @param con DOCUMENT ME!
119     *
120     * @deprecated
121     */
122    public void postInsert(HttpServletRequest JavaDoc request,
123                           DbFormsConfig config,
124                           Connection JavaDoc con) {
125    }
126
127
128    /* (non-Javadoc)
129     * @see org.dbforms.config.DbEventInterceptor#postSelect(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
130     */
131    public void postSelect(DbEventInterceptorData data) {
132       postSelect(data.getRequest(), data.getConfig(), data.getConnection());
133    }
134
135
136    /**
137     * DOCUMENT ME!
138     *
139     * @param request DOCUMENT ME!
140     * @param config DOCUMENT ME!
141     * @param con DOCUMENT ME!
142     *
143     * @deprecated
144     */
145    public void postSelect(HttpServletRequest JavaDoc request,
146                           DbFormsConfig config,
147                           Connection JavaDoc con) {
148    }
149
150
151    /* (non-Javadoc)
152     * @see org.dbforms.config.DbEventInterceptor#postUpdate(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
153     */
154    public void postUpdate(DbEventInterceptorData data) {
155       postUpdate(data.getRequest(), data.getConfig(), data.getConnection());
156    }
157
158
159    /**
160     * DOCUMENT ME!
161     *
162     * @param request DOCUMENT ME!
163     * @param config DOCUMENT ME!
164     * @param con DOCUMENT ME!
165     *
166     * @deprecated
167     */
168    public void postUpdate(HttpServletRequest JavaDoc request,
169                           DbFormsConfig config,
170                           Connection JavaDoc con) {
171    }
172
173
174    /* (non-Javadoc)
175     * @see org.dbforms.config.DbEventInterceptor#preAddRow(org.dbforms.config.DbEventInterceptorData)
176     */
177    public int preAddRow(DbEventInterceptorData data)
178                  throws ValidationException, MultipleValidationException {
179       return GRANT_OPERATION;
180    }
181
182
183    /* (non-Javadoc)
184     * @see org.dbforms.config.DbEventInterceptor#preDelete(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
185     */
186    public int preDelete(DbEventInterceptorData data)
187                  throws ValidationException, MultipleValidationException {
188       return preDelete(data.getRequest(), data.getTable(),
189                        (FieldValues) data.getAttribute(DbEventInterceptorData.FIELDVALUES),
190                        data.getConfig(), data.getConnection());
191    }
192
193
194    /**
195     * DOCUMENT ME!
196     *
197     * @param request DOCUMENT ME!
198     * @param table DOCUMENT ME!
199     * @param fieldValues DOCUMENT ME!
200     * @param config DOCUMENT ME!
201     * @param con DOCUMENT ME!
202     *
203     * @return DOCUMENT ME!
204     *
205     * @throws ValidationException DOCUMENT ME!
206     *
207     * @deprecated
208     */
209    public int preDelete(HttpServletRequest JavaDoc request,
210                         Table table,
211                         FieldValues fieldValues,
212                         DbFormsConfig config,
213                         Connection JavaDoc con) throws ValidationException {
214       return GRANT_OPERATION;
215    }
216
217
218    /* (non-Javadoc)
219     * @see org.dbforms.config.DbEventInterceptor#preInsert(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
220     */
221    public int preInsert(DbEventInterceptorData data)
222                  throws ValidationException, MultipleValidationException {
223       return preInsert(data.getRequest(), data.getTable(),
224                        (FieldValues) data.getAttribute(DbEventInterceptorData.FIELDVALUES),
225                        data.getConfig(), data.getConnection());
226    }
227
228
229    /**
230     * DOCUMENT ME!
231     *
232     * @param request DOCUMENT ME!
233     * @param table DOCUMENT ME!
234     * @param fieldValues DOCUMENT ME!
235     * @param config DOCUMENT ME!
236     * @param con DOCUMENT ME!
237     *
238     * @return DOCUMENT ME!
239     *
240     * @throws ValidationException DOCUMENT ME!
241     *
242     * @deprecated
243     */
244    public int preInsert(HttpServletRequest JavaDoc request,
245                         Table table,
246                         FieldValues fieldValues,
247                         DbFormsConfig config,
248                         Connection JavaDoc con) throws ValidationException {
249       return GRANT_OPERATION;
250    }
251
252
253    /* (non-Javadoc)
254     * @see org.dbforms.config.DbEventInterceptor#preSelect(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
255     */
256    public int preSelect(DbEventInterceptorData data)
257                  throws ValidationException, MultipleValidationException {
258       return preSelect(data.getRequest(), data.getConfig(), data.getConnection());
259    }
260
261
262    /**
263     * DOCUMENT ME!
264     *
265     * @param request DOCUMENT ME!
266     * @param config DOCUMENT ME!
267     * @param con DOCUMENT ME!
268     *
269     * @return DOCUMENT ME!
270     *
271     * @throws ValidationException DOCUMENT ME!
272     *
273     * @deprecated
274     */
275    public int preSelect(HttpServletRequest JavaDoc request,
276                         DbFormsConfig config,
277                         Connection JavaDoc con) throws ValidationException {
278       return GRANT_OPERATION;
279    }
280
281
282    /* (non-Javadoc)
283     * @see org.dbforms.config.DbEventInterceptor#preUpdate(org.dbforms.config.Table, org.dbforms.config.DbEventInterceptorData)
284     */
285    public int preUpdate(DbEventInterceptorData data)
286                  throws ValidationException, MultipleValidationException {
287       return preUpdate(data.getRequest(), data.getTable(),
288                        (FieldValues) data.getAttribute(DbEventInterceptorData.FIELDVALUES),
289                        data.getConfig(), data.getConnection());
290    }
291
292
293    /**
294     * DOCUMENT ME!
295     *
296     * @param request DOCUMENT ME!
297     * @param table DOCUMENT ME!
298     * @param fieldValues DOCUMENT ME!
299     * @param config DOCUMENT ME!
300     * @param con DOCUMENT ME!
301     *
302     * @return DOCUMENT ME!
303     *
304     * @throws ValidationException DOCUMENT ME!
305     *
306     * @deprecated
307     */
308    public int preUpdate(HttpServletRequest JavaDoc request,
309                         Table table,
310                         FieldValues fieldValues,
311                         DbFormsConfig config,
312                         Connection JavaDoc con) throws ValidationException {
313       return GRANT_OPERATION;
314    }
315
316
317    /**
318     * adds or replace a value in the fieldValues
319     *
320     * @param table wich should be used to lookup for the fieldName
321     * @param fieldValues to add/replace value to
322     * @param fieldName to add/replace value
323     * @param value to add/replace
324     */
325    protected void setValue(Table table,
326                            FieldValues fieldValues,
327                            String JavaDoc fieldName,
328                            String JavaDoc value) {
329       FieldValue fv = fieldValues.get(fieldName);
330       Field f = table.getFieldByName(fieldName);
331
332       if (f != null) {
333          if (fv == null) {
334             fv = new FieldValue(f, value);
335             fieldValues.put(fv);
336          } else {
337             fv.setFieldValue(value);
338          }
339       }
340    }
341 }
342
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