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Java > Open Source Codes > org > netbeans > modules > j2ee > websphere6 > dd > loaders > ui > TextItemEditorModel


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19 package org.netbeans.modules.j2ee.websphere6.dd.loaders.ui;
20
21 import org.netbeans.modules.xml.multiview.ItemEditorHelper;
22 import org.netbeans.modules.xml.multiview.XmlMultiViewDataSynchronizer;
23
24 /**
25  * @author pfiala
26  */
27 public abstract class TextItemEditorModel extends ItemEditorHelper.ItemEditorModel {
28
29     XmlMultiViewDataSynchronizer synchronizer;
30     private boolean emptyAllowed;
31     private boolean emptyIsNull;
32     String JavaDoc origValue;
33
34     protected TextItemEditorModel(XmlMultiViewDataSynchronizer synchronizer, boolean emptyAllowed) {
35         this(synchronizer, emptyAllowed, false);
36
37     }
38     protected TextItemEditorModel(XmlMultiViewDataSynchronizer synchronizer, boolean emptyAllowed, boolean emptyIsNull) {
39         this.synchronizer = synchronizer;
40         this.emptyAllowed = emptyAllowed;
41         this.emptyIsNull = emptyIsNull;
42         origValue = getValue();
43     }
44
45     protected boolean validate(String JavaDoc value) {
46         return emptyAllowed ? true : value != null && value.length() > 0;
47     }
48
49     protected abstract void setValue(String JavaDoc value);
50
51     protected abstract String JavaDoc getValue();
52
53     public final boolean setItemValue(String JavaDoc value) {
54         if (emptyAllowed && emptyIsNull && value != null) {
55             while (value.length() > 0 && value.charAt(0) == ' ') {
56                 value = value.substring(1);
57             }
58             if (value.length() == 0) {
59                 value = null;
60             }
61         }
62         if (validate(value)) {
63             String JavaDoc currentValue = getValue();
64             if (!(value == currentValue || value != null && value.equals(currentValue))) {
65                 setValue(value);
66                 synchronizer.requestUpdateData();
67             }
68             return true;
69         } else {
70             return false;
71         }
72     }
73
74     public final String JavaDoc getItemValue() {
75         String JavaDoc value = getValue();
76         return value == null ? "" : value;
77     }
78
79     public void documentUpdated() {
80         setItemValue(getEditorText());
81     }
82 }
83
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