Source code: org/scopemvc/view/servlet/xml/PropertyIDGenerator.java
1 /*
2 * Scope: a generic MVC framework.
3 * Copyright (c) 2000-2002, Steve Meyfroidt
4 * All rights reserved.
5 * Email: smeyfroi@users.sourceforge.net
6 *
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * Neither the name "Scope" nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
28 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 *
36 *
37 * $Id: PropertyIDGenerator.java,v 1.4 2002/01/12 09:35:40 smeyfroi Exp $
38 */
39
40
41 package org.scopemvc.view.servlet.xml;
42
43
44 import org.scopemvc.core.Selector;
45
46
47 /**
48 * <P>
49 * Generates IDs to identify properties during the traversal
50 * of the model containment hierarchy. Used by ModelToXML.
51 * The ids in the xml could be used as form parameters to
52 * identify properties to be populated with user input.
53 * </P>
54 * <P>
55 * This is used by the ID generators defined as inner classes in
56 * {@link XSLPage}.
57 * </P>
58 *
59 * @author <A HREF="mailto:smeyfroi@users.sourceforge.net">Steve Meyfroidt</A>
60 * @version $Revision: 1.4 $ $Date: 2002/01/12 09:35:40 $
61 */
62 public abstract class PropertyIDGenerator {
63
64
65 protected Selector currentPropertySelector;
66
67
68 /**
69 * Call this to recurse down a property.
70 */
71 public void startProperty(Selector inSelector) {
72 if (currentPropertySelector == null) {
73 currentPropertySelector = inSelector.deepClone();
74 } else {
75 currentPropertySelector.chain(inSelector.deepClone());
76 }
77 }
78
79
80 /**
81 * Call this to pop up a property.
82 */
83 public void endProperty() {
84 if (currentPropertySelector.getNext() == null) {
85 currentPropertySelector = null;
86 } else {
87 currentPropertySelector.removeLast();
88 }
89 }
90
91
92 public abstract String getPropertyID();
93 }