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Java > Open Source Codes > com > jcorporate > expresso > core > servlet > DefaultInit


1 /* ====================================================================
2  * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
3  *
4  * Copyright (c) 1995-2002 Jcorporate Ltd. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in
15  * the documentation and/or other materials provided with the
16  * distribution.
17  *
18  * 3. The end-user documentation included with the redistribution,
19  * if any, must include the following acknowledgment:
20  * "This product includes software developed by Jcorporate Ltd.
21  * (http://www.jcorporate.com/)."
22  * Alternately, this acknowledgment may appear in the software itself,
23  * if and wherever such third-party acknowledgments normally appear.
24  *
25  * 4. "Jcorporate" and product names such as "Expresso" must
26  * not be used to endorse or promote products derived from this
27  * software without prior written permission. For written permission,
28  * please contact info@jcorporate.com.
29  *
30  * 5. Products derived from this software may not be called "Expresso",
31  * or other Jcorporate product names; nor may "Expresso" or other
32  * Jcorporate product names appear in their name, without prior
33  * written permission of Jcorporate Ltd.
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35  * 6. No product derived from this software may compete in the same
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37  * of Jcorporate Ltd. For written permission, please contact
38  * partners@jcorporate.com.
39  *
40  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
41  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
42  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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45  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
46  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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50  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  * ====================================================================
53  *
54  * This software consists of voluntary contributions made by many
55  * individuals on behalf of the Jcorporate Ltd. Contributions back
56  * to the project(s) are encouraged when you make modifications.
57  * Please send them to support@jcorporate.com. For more information
58  * on Jcorporate Ltd. and its products, please see
59  * <http://www.jcorporate.com/>.
60  *
61  * Portions of this software are based upon other open source
62  * products and are subject to their respective licenses.
63  */
64
65 package com.jcorporate.expresso.core.servlet;
66
67 import com.jcorporate.expresso.core.db.DBException;
68
69 import javax.servlet.ServletConfig JavaDoc;
70 import javax.servlet.ServletException JavaDoc;
71
72
73 /**
74  * DefaultInit is an "empty" implementation of InitServlet, just so that there
75  * is a non-abstract implementation for Expresso to use when no specific
76  * lists are loaded. See InitServlet for details.
77  * <p/>
78  * This servlet should be set to run automatically when the web-app is
79  * initialized.
80  *
81  * @author Adam Rossi
82  */
83 public class DefaultInit
84         extends InitServlet {
85     /*
86
87      * This method is called when the server initializes.
88
89      * This method simply calls the ConfigManager.config method which
90
91      * actually does the job of initializing Expresso.
92
93      *
94
95      * @param conf
96
97      * @throws ServletException
98
99      */
100     public void init(ServletConfig JavaDoc conf)
101             throws ServletException JavaDoc {
102         System.out.println("DefaultInit: init");
103         try {
104             super.init(conf);
105         } catch (Throwable JavaDoc e) {
106             System.err.println("Initialization error: ");
107             e.printStackTrace();
108             throw new ServletException JavaDoc(e.getMessage());
109         }
110     } /* init(ServletConfig) */
111
112
113     public void destroy() {
114         super.destroy();
115     }
116
117     /**
118      * This method is used to load "lists" and cache them in ConfigManager list cache.
119      * These lists are used to populate valid values for DBObjects.
120      * <p/>
121      * Load a valid list (a vector containing ValidValue objects), and put it into the
122      * list cache in ConfigManager by calling:
123      * ConfigManager.setList("list_name", list_vector);
124      * <p/>
125      * Example:
126      */
127     public void loadLists()
128             throws DBException {
129     } /* loadLists() */
130
131
132 } /* DefaultInit */
133
134 /* DefaultInit */
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