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Java > Open Source Codes > org > jfree > base > modules > ModuleInitializer


1 /* ========================================================================
2  * JCommon : a free general purpose class library for the Java(tm) platform
3  * ========================================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jcommon/index.html
8  *
9  * This library is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU Lesser General Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or
12  * (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17  * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22  * USA.
23  *
24  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25  * in the United States and other countries.]
26  *
27  * ----------------------
28  * ModuleInitializer.java
29  * ----------------------
30  * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
31  *
32  * Original Author: Thomas Morgner;
33  * Contributor(s): David Gilbert (for Object Refinery Limited);
34  *
35  * $Id: ModuleInitializer.java,v 1.2 2005/10/18 13:14:50 mungady Exp $
36  *
37  * Changes
38  * -------
39  * 14-Jul-2003 : Initial version
40  * 07-Jun-2004 : Added JCommon header (DG);
41  *
42  */
43
44 package org.jfree.base.modules;
45
46 /**
47  * The module initializer is used to separate the initialization process from
48  * the module definition. An invalid classpath setup or an missing base module
49  * may throw an ClassCastException if the module class references this missing
50  * resource. Separating them is the best way to make sure that the classloader
51  * does not interrupt the module loading process.
52  *
53  * @author Thomas Morgner
54  */
55 public interface ModuleInitializer {
56     
57     /**
58      * Performs the initalization of the module.
59      *
60      * @throws ModuleInitializeException if an error occurs which prevents the module
61      * from being usable.
62      */
63     public void performInit() throws ModuleInitializeException;
64 }
65
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