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Java > Open Source Codes > org > enhydra > barracuda > contrib > sam > data > DataObjectGateway


1 /*
2  * Copyright (C) 2003 Stefan Armbruster [stefan@armbruster-it.de]
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * $Id: DataObjectGateway.java,v 1.3 2004/02/01 05:16:27 christianc Exp $
19  */
20 package org.enhydra.barracuda.contrib.sam.data;
21
22 import org.enhydra.barracuda.core.event.*;
23 import org.enhydra.barracuda.core.event.helper.*;
24 import org.apache.log4j.*;
25
26 /**
27  * Event handlers (both Controller and View) for the
28  * Main screen
29  */
30 public abstract class DataObjectGateway extends DefaultEventGateway {
31
32     //public constants
33 protected static Logger logger = Logger.getLogger(DataObjectGateway.class.getName());
34
35     protected abstract Class JavaDoc getDefaultHandler();
36     protected abstract Class JavaDoc getDefaultEvent();
37     protected abstract Class JavaDoc getSaveHandler();
38     protected abstract Class JavaDoc getSaveEvent();
39     protected abstract Class JavaDoc getDeleteHandler();
40     protected abstract Class JavaDoc getDeleteEvent();
41     protected abstract Class JavaDoc getNewHandler();
42     protected abstract Class JavaDoc getNewEvent();
43     protected abstract Class JavaDoc getListHandler();
44     protected abstract Class JavaDoc getListEvent();
45     protected abstract Class JavaDoc getRenderEvent();
46     protected abstract Class JavaDoc getRenderHandler();
47
48
49
50     public DataObjectGateway() {
51         logger.debug("registering Handlers:");
52         logger.debug("DefaultEvent: " + getDefaultEvent().getName());
53         specifyLocalEventInterests(new EventConnectorFactory(getDefaultHandler()), getDefaultEvent());
54         specifyLocalEventInterests(new EventConnectorFactory(getSaveHandler()), getSaveEvent());
55         specifyLocalEventInterests(new EventConnectorFactory(getDeleteHandler()), getDeleteEvent());
56         specifyLocalEventInterests(new EventConnectorFactory(getNewHandler()), getNewEvent());
57         if (getListEvent() != null) {
58                 specifyLocalEventInterests(new EventConnectorFactory(getListHandler()), getListEvent());
59             }
60         specifyLocalEventInterests(new EventConnectorFactory(getRenderHandler()), getRenderEvent());
61         //specifyLocalEventInterests(new EventConnectorFactory(getHandler()), Event);
62 }
63 }
64
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