1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*******************************************************************************
* Copyright (c) 2007, 2008 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.ui.internal.mappings.details;
import java.util.Collection;
import java.util.Iterator;
import org.eclipse.jpt.core.context.NonOwningMapping;
import org.eclipse.jpt.core.context.RelationshipMapping;
import org.eclipse.jpt.ui.WidgetFactory;
import org.eclipse.jpt.ui.internal.JpaHelpContextIds;
import org.eclipse.jpt.ui.internal.mappings.JptUiMappingsMessages;
import org.eclipse.jpt.ui.internal.util.SWTUtil;
import org.eclipse.jpt.ui.internal.widgets.AbstractFormPane;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.StringTools;
import org.eclipse.jpt.utility.model.value.PropertyValueModel;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
/**
* Here the layout of this pane:
* <pre>
* -----------------------------------------------------------------------------
* | -------------------------------------------------------------- |
* | Mapped By: | |v| |
* | -------------------------------------------------------------- |
* -----------------------------------------------------------------------------</pre>
*
* @see NonOwningMapping
* @see ManyToManyMappingComposite - A container of this pane
* @see OneToManyMappingComposite - A container of this pane
* @see OneToOneMappingComposite - A container of this pane
*
* @version 2.0
* @since 1.0
*/
@SuppressWarnings("nls")
public class MappedByComposite extends AbstractFormPane<NonOwningMapping>
{
private CCombo combo;
/**
* Creates a new <code>MappedByComposite</code>.
*
* @param parentPane The parent container of this one
* @param parent The parent container
*/
public MappedByComposite(AbstractFormPane<? extends NonOwningMapping> parentPane,
Composite parent) {
super(parentPane, parent);
}
/**
* Creates a new <code>MappedByComposite</code>.
*
* @param subjectHolder The holder of the subject <code>INonOwningMapping</code>
* @param parent The parent container
* @param widgetFactory The factory used to create various common widgets
*/
public MappedByComposite(PropertyValueModel<? extends NonOwningMapping> subjectHolder,
Composite parent,
WidgetFactory widgetFactory) {
super(subjectHolder, parent, widgetFactory);
}
/*
* (non-Javadoc)
*/
@Override
protected void addPropertyNames(Collection<String> propertyNames) {
super.addPropertyNames(propertyNames);
propertyNames.add(RelationshipMapping.RESOLVED_TARGET_ENTITY_PROPERTY);
propertyNames.add(NonOwningMapping.MAPPED_BY_PROPERTY);
}
private ModifyListener buildComboModifyListener() {
return new ModifyListener() {
public void modifyText(ModifyEvent e) {
if (!isPopulating()) {
CCombo combo = (CCombo) e.widget;
if (combo.getData("populating") != Boolean.TRUE) {//check !TRUE because null is a possibility as well
valueChanged(combo.getText());
}
}
}
};
}
/*
* (non-Javadoc)
*/
@Override
protected void doPopulate() {
super.doPopulate();
populateCombo();
}
/*
* (non-Javadoc)
*/
@Override
protected void initializeLayout(Composite container) {
combo = buildLabeledEditableCCombo(
container,
JptUiMappingsMessages.NonOwningMapping_mappedByLabel,
buildComboModifyListener(),
JpaHelpContextIds.MAPPING_MAPPED_BY
);
SWTUtil.attachDefaultValueHandler(combo);
}
private void populateCombo() {
combo.removeAll();
combo.add(JptUiMappingsMessages.NoneSelected);
NonOwningMapping subject = subject();
if (subject != null) {
Iterator<String> iter = subject.candidateMappedByAttributeNames();
for (iter = CollectionTools.sort(iter); iter.hasNext(); ) {
combo.add(iter.next());
}
}
updateSelectedItem();
}
/*
* (non-Javadoc)
*/
@Override
protected void propertyChanged(String propertyName) {
super.propertyChanged(propertyName);
if (propertyName == NonOwningMapping.MAPPED_BY_PROPERTY ||
propertyName == RelationshipMapping.RESOLVED_TARGET_ENTITY_PROPERTY) {
populateCombo();
}
}
/**
* Updates the selected item by selected the current value, if not
* <code>null</code>, or select the default value if one is available,
* otherwise remove the selection.
* <p>
* <b>Note:</b> It seems the text can be shown as truncated, changing the
* selection to (0, 0) makes the entire text visible.
*/
private void updateSelectedItem() {
NonOwningMapping subject = subject();
String value = (subject != null) ? subject.getMappedBy() : null;
if (value != null) {
combo.setText(value);
}
else {
combo.select(0);
}
combo.setSelection(new Point(0, 0));
}
private void valueChanged(String value) {
NonOwningMapping subject = subject();
String oldValue = (subject != null) ? subject.getMappedBy() : null;
// Check for null value
if (StringTools.stringIsEmpty(value)) {
value = null;
if (StringTools.stringIsEmpty(oldValue)) {
return;
}
}
// The default value
if (JptUiMappingsMessages.NoneSelected.equals(value)) {
value = null;
}
// Nothing to change
if ((oldValue == value) && value == null) {
return;
}
// Set the new value
if ((value != null) && (oldValue == null) ||
((oldValue != null) && !oldValue.equals(value))) {
setPopulating(true);
try {
subject.setMappedBy(value);
}
finally {
setPopulating(false);
}
}
}
}
|
