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1
19
20 package org.netbeans.modules.dbschema.jdbcimpl.wizard;
21
22 import java.awt.event.ActionEvent  ;
23 import java.awt.event.ActionListener ;
24 import java.awt.event.KeyEvent ;
25 import java.sql.Connection ;
26 import java.sql.ResultSet ;
27 import java.sql.SQLException ;
28 import java.util.ArrayList ;
29 import java.util.LinkedList ;
30 import java.util.List ;
31 import java.util.ResourceBundle ;
32
33 import javax.swing.*;
34 import javax.swing.event.*;
35 import org.netbeans.api.db.explorer.ConnectionManager;
36 import org.netbeans.api.db.explorer.DatabaseConnection;
37 import org.netbeans.api.progress.ProgressHandle;
38 import org.netbeans.api.progress.ProgressHandleFactory;
39 import org.openide.util.NbBundle;
40
41 import org.netbeans.modules.dbschema.jdbcimpl.DDLBridge;
42 import org.netbeans.modules.dbschema.jdbcimpl.ConnectionProvider;
43 import org.openide.ErrorManager;
44 import org.openide.util.Mutex;
45 import org.openide.util.RequestProcessor;
46
47 public class DBSchemaTablesPanel extends JPanel implements ListDataListener {
48
49 private static final ErrorManager LOGGER = ErrorManager.getDefault().getInstance("org.netbeans.modules.dbschema.jdbcimpl.wizard"); private static final boolean LOG = LOGGER.isLoggable(ErrorManager.INFORMATIONAL);
51
52 private final ResourceBundle bundle = NbBundle.getBundle("org.netbeans.modules.dbschema.jdbcimpl.resources.Bundle");
54 private LinkedList tables;
55 private LinkedList views;
56 private ConnectionProvider cp;
57 private String schema;
58 private String driver;
59
60 private DatabaseConnection dbconnOld;
61 private Connection conn;
62
63 private DBSchemaWizardData data;
64
65 private int tablesCount;
66
67 private ArrayList list;
68
69
70 public DBSchemaTablesPanel(DBSchemaWizardData data, ArrayList list) {
71 this.list = list;
72 this.data = data;
73 tables = new LinkedList ();
74 views = new LinkedList ();
75 cp = null;
76
77 putClientProperty("WizardPanel_contentSelectedIndex", new Integer (2)); setName(bundle.getString("TablesChooser"));
80 initComponents();
81 initAccessibility();
82
83 jListAvailableTables.registerKeyboardAction(new ActionListener () {
84 public void actionPerformed(ActionEvent e) {
85 jListAvailableTables.requestFocus();
86 }
87 }, KeyStroke.getKeyStroke(KeyEvent.VK_T, KeyEvent.ALT_MASK), JComponent.WHEN_IN_FOCUSED_WINDOW);
88 jListSelectedTables.registerKeyboardAction(new ActionListener () {
89 public void actionPerformed(ActionEvent e) {
90 jListSelectedTables.requestFocus();
91 }
92 }, KeyStroke.getKeyStroke(KeyEvent.VK_S, KeyEvent.ALT_MASK), JComponent.WHEN_IN_FOCUSED_WINDOW);
93
94 jListSelectedTables.getModel().addListDataListener(this);
95
96 (jListAvailableTables.getSelectionModel()).addListSelectionListener(new ListSelectionListener() {
97 public void valueChanged(ListSelectionEvent e) {
98 jButtonAdd.setEnabled(jListAvailableTables.getSelectedIndex() == -1 ? false : true);
99 }
100 });
101 (jListSelectedTables.getSelectionModel()).addListSelectionListener(new ListSelectionListener() {
102 public void valueChanged(ListSelectionEvent e) {
103 jButtonRemove.setEnabled(jListSelectedTables.getSelectedIndex() == -1 ? false : true);
104 }
105 });
106 }
107
108 protected boolean init() {
109
110 List handlers = new ArrayList ();
111 Parameters params = new Parameters();
112
113 boolean init = true;
114
115 if (data.getConnectionProvider() != null) {
116 if (data.getDatabaseConnection() == dbconnOld)
117 init = false;
118
119 if (init) {
120 cp = data.getConnectionProvider();
121 handlers.add(new Handler() {
122 public void handle(Parameters params) {
123 uninit();
124 }
125 public String getMessage() {
126 return NbBundle.getMessage(DBSchemaTablesPanel.class, "MSG_ClosingPrevious");
127 }
128 });
129 }
130 }
131
132 if (!init) {
133 updateButtons();
134 return true;
135 }
136
137 data.setConnected(false);
138 if (!data.isExistingConn()) {
139 return false;
140 }
141
142
144 final DatabaseConnection dbconn = data.getDatabaseConnection();
145 conn = dbconn.getJDBCConnection();
146
147 if (conn != null) {
149 handlers.add(new Handler() {
150 public void handle(Parameters params) {
151 try {
152 conn.getCatalog(); } catch (SQLException exc) {
154 conn = null;
155 }
156 }
157 public String getMessage() {
158 return NbBundle.getMessage(DBSchemaTablesPanel.class, "MSG_CheckingExisting");
159 }
160 });
161 }
162
163 handlers.add(new Handler() {
164 public void handle(Parameters params) {
165 ConnectionManager.getDefault().showConnectionDialog(dbconn);
166 conn = dbconn.getJDBCConnection();
167 }
168 public boolean getRunInEDT() {
169 return true;
170 }
171 public boolean isRunnable() {
172 return conn == null;
173 }
174 });
175
176 handlers.add(new Handler() {
177 public void handle(Parameters params) {
178
179 if (conn != null) {
181 try {
182 conn.getCatalog(); } catch (SQLException exc) {
184 conn = null;
185 data.setConnected(false);
186 params.setResult(false);
187 return;
188 }
189 }
190
191 data.setConnected(true);
192
193 schema = dbconn.getSchema();
194 driver = dbconn.getDriverClass();
195
196 dbconnOld = dbconn;
197
198 try {
199 if (conn == null) {
200 params.setResult(false);
201 return;
202 }
203
204 cp = new ConnectionProvider(conn, driver);
205 cp.setSchema(schema);
206 } catch (SQLException exc) {
207 }
209
210 data.setConnectionProvider(cp);
211
212 tables.clear();
213 views.clear();
214
215 try {
216 DDLBridge bridge = new DDLBridge(cp.getConnection(), cp.getSchema(), cp.getDatabaseMetaData());
217
218 ResultSet rs;
219 bridge.getDriverSpecification().getTables("%", new String [] {"TABLE"}); rs = bridge.getDriverSpecification().getResultSet();
221 if (rs != null) {
222 while (rs.next())
223 tables.add(rs.getString("TABLE_NAME").trim()); rs.close();
225 }
226
227 rs = null;
228 if (bridge.getDriverSpecification().areViewsSupported()) {
229 bridge.getDriverSpecification().getTables("%", new String [] {"VIEW"}); rs = bridge.getDriverSpecification().getResultSet();
231 }
232 if (rs != null) {
233 while (rs.next())
234 views.add(rs.getString("TABLE_NAME").trim()); rs.close();
236 }
237 } catch (SQLException exc) {
238 org.openide.ErrorManager.getDefault().notify(exc);
239 }
240
241 ((SortedListModel) jListAvailableTables.getModel()).clear();
242 ((SortedListModel) jListSelectedTables.getModel()).clear();
243
244 tablesCount = tables.size();
245
246 for (int i = 0; i < tables.size(); i++)
247 ((SortedListModel) jListAvailableTables.getModel()).add(bundle.getString("TablePrefix") + " " + tables.get(i).toString());
249 for (int i = 0; i < views.size(); i++)
250 ((SortedListModel) jListAvailableTables.getModel()).add(bundle.getString("ViewPrefix") + " " + views.get(i).toString()); if (jListAvailableTables.getModel().getSize() > 0)
252 jListAvailableTables.setSelectedIndex(0);
253 tables.clear();
254 views.clear();
255
256 params.setResult(true);
257 }
258
259 public String getMessage() {
260 return NbBundle.getMessage(DBSchemaTablesPanel.class, "MSG_RetrievingTables");
261 }
262
263 public boolean isRunnable() {
264 return conn != null;
265 }
266 });
267
268 invokeHandlers(handlers, params);
269
270 updateButtons();
271
272 return params.getResult();
273 }
274
275 private void invokeHandlers(final List handlers, final Parameters params) {
276 final ProgressPanel progressPanel = new ProgressPanel();
277
278 ProgressHandle progressHandle = ProgressHandleFactory.createHandle(null);
279 JComponent progressComponent = ProgressHandleFactory.createProgressComponent(progressHandle);
280
281 progressHandle.start();
282 progressHandle.switchToIndeterminate();
283
284 final int[] index = new int[1];
285
286 try {
287 RequestProcessor.Task task = RequestProcessor.getDefault().create(new Runnable () {
288 public void run() {
289 index[0] = invokeHandlers(handlers, index[0], params, progressPanel);
290 SwingUtilities.invokeLater(new Runnable () {
291 public void run() {
292 progressPanel.close();
293 }
294 });
295 }
296 });
297
298 while (index[0] < handlers.size()) {
299 index[0] = invokeHandlers(handlers, index[0], params, null);
300 if (index[0] < handlers.size()) {
301 task.schedule(0);
302 progressPanel.open(progressComponent);
303 }
304 }
305 } finally {
306 progressHandle.finish();
307 }
308 }
309
310 private int invokeHandlers(List handlers, int start, Parameters params, final ProgressPanel progressPanel) {
311 boolean isEDT = SwingUtilities.isEventDispatchThread();
312 int i;
313
314 for (i = start; i < handlers.size(); i++) {
315 Handler h = (Handler)handlers.get(i);
316 if (!h.isRunnable()) {
317 if (LOG) {
318 LOGGER.log("Skipping " + h); }
320 continue;
321 }
322 if (h.getRunInEDT() != isEDT) {
323 break;
324 }
325 if (LOG) {
326 LOGGER.log("Invoking " + h); }
328 if (progressPanel != null) {
329 final String message = h.getMessage();
330 if (message != null) {
331 Mutex.EVENT.readAccess(new Runnable () {
332 public void run() {
333 progressPanel.setText(message);
334 }
335 });
336 }
337 }
338 h.handle(params);
339 }
340
341 return i;
342 }
343
344 public void uninit() {
345 try {
346 if (cp != null)
347 if (data.isConnected())
348 if (data.isExistingConn())
349 ConnectionManager.getDefault().disconnect(dbconnOld);
350 else
351 if (dbconnOld.getJDBCConnection() != null)
352 ConnectionManager.getDefault().disconnect(dbconnOld);
353 else
354 cp.closeConnection();
355 } catch (Exception exc) {
356 }
358 }
359
360 private void initAccessibility() {
361 this.getAccessibleContext().setAccessibleDescription(bundle.getString("ACS_TablesPanelA11yDesc")); jLabelAvailableTables.getAccessibleContext().setAccessibleDescription(bundle.getString("ACS_AvailableTablesA11yDesc")); jListAvailableTables.getAccessibleContext().setAccessibleName(bundle.getString("ACS_AvailableTablesListA11yName")); jLabelSelectedTables.getAccessibleContext().setAccessibleDescription(bundle.getString("ACS_SelectedTablesA11yDesc")); jListSelectedTables.getAccessibleContext().setAccessibleName(bundle.getString("ACS_SelectedTablesListA11yName")); jLabelNote.getAccessibleContext().setAccessibleDescription(bundle.getString("ACS_FKReferenceNoteA11yDesc")); }
368
369
374 private void initComponents() {
376 java.awt.GridBagConstraints gridBagConstraints;
377
378 jLabelAvailableTables = new javax.swing.JLabel ();
379 jScrollPaneAvailableTables = new javax.swing.JScrollPane ();
380 jListAvailableTables = new javax.swing.JList ();
381 jPanelButtons = new javax.swing.JPanel ();
382 jButtonAdd = new javax.swing.JButton ();
383 jButtonRemove = new javax.swing.JButton ();
384 jButtonAddAll = new javax.swing.JButton ();
385 jButtonRemoveAll = new javax.swing.JButton ();
386 jLabelSelectedTables = new javax.swing.JLabel ();
387 jScrollPaneSelectedTables = new javax.swing.JScrollPane ();
388 jListSelectedTables = new javax.swing.JList ();
389 jLabelNote = new javax.swing.JLabel ();
390
391 FormListener formListener = new FormListener();
392
393 setPreferredSize(new java.awt.Dimension (400, 199));
394 setLayout(new java.awt.GridBagLayout ());
395
396 jLabelAvailableTables.setLabelFor(jListAvailableTables);
397 org.openide.awt.Mnemonics.setLocalizedText(jLabelAvailableTables, bundle.getString("AvailableTables")); gridBagConstraints = new java.awt.GridBagConstraints ();
399 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
400 gridBagConstraints.insets = new java.awt.Insets (12, 12, 0, 0);
401 add(jLabelAvailableTables, gridBagConstraints);
402
403 jListAvailableTables.setToolTipText(bundle.getString("ACS_AvailableTablesListA11yDesc")); jListAvailableTables.setModel(new SortedListModel());
405 jScrollPaneAvailableTables.setViewportView(jListAvailableTables);
406
407 gridBagConstraints = new java.awt.GridBagConstraints ();
408 gridBagConstraints.gridx = 0;
409 gridBagConstraints.gridy = 1;
410 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
411 gridBagConstraints.weightx = 1.0;
412 gridBagConstraints.weighty = 1.0;
413 gridBagConstraints.insets = new java.awt.Insets (11, 12, 0, 0);
414 add(jScrollPaneAvailableTables, gridBagConstraints);
415
416 jPanelButtons.setLayout(new java.awt.GridBagLayout ());
417
418 org.openide.awt.Mnemonics.setLocalizedText(jButtonAdd, bundle.getString("AddButton")); jButtonAdd.setToolTipText(bundle.getString("ACS_AddButtonA11yDesc")); jButtonAdd.addActionListener(formListener);
421 gridBagConstraints = new java.awt.GridBagConstraints ();
422 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
423 jPanelButtons.add(jButtonAdd, gridBagConstraints);
424
425 jButtonRemove.setToolTipText(bundle.getString("ACS_RemoveButtonA11yDesc")); org.openide.awt.Mnemonics.setLocalizedText(jButtonRemove, bundle.getString("RemoveButton")); jButtonRemove.addActionListener(formListener);
428 gridBagConstraints = new java.awt.GridBagConstraints ();
429 gridBagConstraints.gridx = 0;
430 gridBagConstraints.gridy = 1;
431 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
432 gridBagConstraints.insets = new java.awt.Insets (5, 0, 0, 0);
433 jPanelButtons.add(jButtonRemove, gridBagConstraints);
434
435 jButtonAddAll.setToolTipText(bundle.getString("ACS_AddAllButtonA11yDesc")); org.openide.awt.Mnemonics.setLocalizedText(jButtonAddAll, bundle.getString("AddAllButton")); jButtonAddAll.addActionListener(formListener);
438 gridBagConstraints = new java.awt.GridBagConstraints ();
439 gridBagConstraints.gridx = 0;
440 gridBagConstraints.gridy = 2;
441 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
442 gridBagConstraints.insets = new java.awt.Insets (17, 0, 0, 0);
443 jPanelButtons.add(jButtonAddAll, gridBagConstraints);
444
445 jButtonRemoveAll.setToolTipText(bundle.getString("ACS_RemoveAllButtonA11yDesc")); org.openide.awt.Mnemonics.setLocalizedText(jButtonRemoveAll, bundle.getString("RemoveAllButton")); jButtonRemoveAll.addActionListener(formListener);
448 gridBagConstraints = new java.awt.GridBagConstraints ();
449 gridBagConstraints.gridx = 0;
450 gridBagConstraints.gridy = 3;
451 gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
452 gridBagConstraints.insets = new java.awt.Insets (5, 0, 0, 0);
453 jPanelButtons.add(jButtonRemoveAll, gridBagConstraints);
454
455 gridBagConstraints = new java.awt.GridBagConstraints ();
456 gridBagConstraints.gridx = 1;
457 gridBagConstraints.gridy = 0;
458 gridBagConstraints.gridheight = 2;
459 gridBagConstraints.insets = new java.awt.Insets (12, 11, 0, 11);
460 add(jPanelButtons, gridBagConstraints);
461
462 jLabelSelectedTables.setLabelFor(jListSelectedTables);
463 org.openide.awt.Mnemonics.setLocalizedText(jLabelSelectedTables, bundle.getString("SelectedTables")); gridBagConstraints = new java.awt.GridBagConstraints ();
465 gridBagConstraints.gridx = 2;
466 gridBagConstraints.gridy = 0;
467 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
468 gridBagConstraints.insets = new java.awt.Insets (12, 0, 0, 11);
469 add(jLabelSelectedTables, gridBagConstraints);
470
471 jListSelectedTables.setModel(new SortedListModel());
472 jListSelectedTables.setToolTipText(bundle.getString("ACS_SelectedTablesListA11yDesc")); jScrollPaneSelectedTables.setViewportView(jListSelectedTables);
474
475 gridBagConstraints = new java.awt.GridBagConstraints ();
476 gridBagConstraints.gridx = 2;
477 gridBagConstraints.gridy = 1;
478 gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
479 gridBagConstraints.weightx = 1.0;
480 gridBagConstraints.weighty = 1.0;
481 gridBagConstraints.insets = new java.awt.Insets (11, 0, 0, 11);
482 add(jScrollPaneSelectedTables, gridBagConstraints);
483
484 org.openide.awt.Mnemonics.setLocalizedText(jLabelNote, bundle.getString("FKReferenceNote")); gridBagConstraints = new java.awt.GridBagConstraints ();
486 gridBagConstraints.gridx = 0;
487 gridBagConstraints.gridy = 2;
488 gridBagConstraints.gridwidth = 3;
489 gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
490 gridBagConstraints.insets = new java.awt.Insets (11, 12, 0, 11);
491 add(jLabelNote, gridBagConstraints);
492 }
493
494
496 private class FormListener implements java.awt.event.ActionListener {
497 FormListener() {}
498 public void actionPerformed(java.awt.event.ActionEvent evt) {
499 if (evt.getSource() == jButtonAdd) {
500 DBSchemaTablesPanel.this.jButtonAddActionPerformed(evt);
501 }
502 else if (evt.getSource() == jButtonRemove) {
503 DBSchemaTablesPanel.this.jButtonRemoveActionPerformed(evt);
504 }
505 else if (evt.getSource() == jButtonAddAll) {
506 DBSchemaTablesPanel.this.jButtonAddAllActionPerformed(evt);
507 }
508 else if (evt.getSource() == jButtonRemoveAll) {
509 DBSchemaTablesPanel.this.jButtonRemoveAllActionPerformed(evt);
510 }
511 }
512 }
514 private void jButtonRemoveAllActionPerformed(java.awt.event.ActionEvent evt) { SortedListModel ulm = (SortedListModel) jListAvailableTables.getModel();
516 SortedListModel slm = (SortedListModel) jListSelectedTables.getModel();
517
518 Object [] values = slm.toArray();
519 for (int i = 0; i < values.length; i++) {
520 ulm.add(values[i]);
521 slm.remove(values[i]);
522 }
523
524 tables.clear();
525 views.clear();
526
527 int[] sel = new int[values.length];
528 for (int i = 0; i < values.length; i++)
529 sel[i] = ulm.indexOf(values[i]);
530 jListAvailableTables.setSelectedIndices(sel);
531
532 setSelection();
533 updateButtons();
534 }
536 private void jButtonAddAllActionPerformed(java.awt.event.ActionEvent evt) { SortedListModel ulm = (SortedListModel) jListAvailableTables.getModel();
538 SortedListModel slm = (SortedListModel) jListSelectedTables.getModel();
539
540 String name;
541 Object [] values = ulm.toArray();
542 for (int i = 0; i < values.length; i++) {
543 slm.add(values[i]);
544 ulm.remove(values[i]);
545
546 name = values[i].toString();
547 if (name.startsWith(bundle.getString("TablePrefix"))) tables.add(name.substring(name.indexOf(" ") + 1)); else
550 views.add(name.substring(name.indexOf(" ") + 1)); }
552
553 int[] sel = new int[values.length];
554 for (int i = 0; i < values.length; i++)
555 sel[i] = slm.indexOf(values[i]);
556 jListSelectedTables.setSelectedIndices(sel);
557
558 setSelection();
559 updateButtons();
560 }
562 private void jButtonRemoveActionPerformed(java.awt.event.ActionEvent evt) { SortedListModel ulm = (SortedListModel) jListAvailableTables.getModel();
564 SortedListModel slm = (SortedListModel) jListSelectedTables.getModel();
565
566 String name;
567 Object [] values = jListSelectedTables.getSelectedValues();
568 for (int i = 0; i < values.length; i++) {
569 ulm.add(values[i]);
570 slm.remove(values[i]);
571
572 name = values[i].toString();
573 name = (name.substring(name.indexOf(" "))).trim(); if (tables.contains(name))
575 tables.remove(name);
576 else
577 views.remove(name);
578 }
579
580 int[] sel = new int[values.length];
581 for (int i = 0; i < values.length; i++)
582 sel[i] = ulm.indexOf(values[i]);
583 jListAvailableTables.setSelectedIndices(sel);
584
585 setSelection();
586 updateButtons();
587 }
589 private void jButtonAddActionPerformed(java.awt.event.ActionEvent evt) { SortedListModel ulm = (SortedListModel) jListAvailableTables.getModel();
591 SortedListModel slm = (SortedListModel) jListSelectedTables.getModel();
592
593 String name;
594 Object [] values = jListAvailableTables.getSelectedValues();
595 for (int i = 0; i < values.length; i++) {
596 slm.add(values[i]);
597 ulm.remove(values[i]);
598
599 name = values[i].toString();
600 if (name.startsWith(bundle.getString("TablePrefix"))) tables.add(name.substring(name.indexOf(" ") + 1)); else
603 views.add(name.substring(name.indexOf(" ") + 1)); }
605
606 int[] sel = new int[values.length];
607 for (int i = 0; i < values.length; i++)
608 sel[i] = slm.indexOf(values[i]);
609 jListSelectedTables.setSelectedIndices(sel);
610
611 setSelection();
612 updateButtons();
613 }
615 private javax.swing.JButton jButtonAdd;
617 private javax.swing.JButton jButtonAddAll;
618 private javax.swing.JButton jButtonRemove;
619 private javax.swing.JButton jButtonRemoveAll;
620 private javax.swing.JLabel jLabelAvailableTables;
621 private javax.swing.JLabel jLabelNote;
622 private javax.swing.JLabel jLabelSelectedTables;
623 private javax.swing.JList jListAvailableTables;
624 private javax.swing.JList jListSelectedTables;
625 private javax.swing.JPanel jPanelButtons;
626 private javax.swing.JScrollPane jScrollPaneAvailableTables;
627 private javax.swing.JScrollPane jScrollPaneSelectedTables;
628
630 private void setSelection() {
631 data.setTables(tables);
632 data.setViews(views);
633
634 if (tablesCount == tables.size())
635 data.setAllTables(true);
636 else
637 data.setAllTables(false);
638 }
639
640 private void updateButtons() {
641 jButtonAdd.setEnabled(jListAvailableTables.getSelectedIndex() == -1 ? false : true);
642 jButtonAddAll.setEnabled(((SortedListModel) jListAvailableTables.getModel()).isEmpty() ? false : true);
643 jButtonRemove.setEnabled(jListSelectedTables.getSelectedIndex() == -1 ? false : true);
644 jButtonRemoveAll.setEnabled(((SortedListModel) jListSelectedTables.getModel()).isEmpty() ? false : true);
645 }
646
647 public boolean isValid() {
648 if (jListSelectedTables.getModel().getSize() > 0)
649 return true;
650 else
651 return false;
652 }
653
654 public void intervalAdded(javax.swing.event.ListDataEvent p1) {
655 fireChange(this);
656 }
657
658 public void intervalRemoved(javax.swing.event.ListDataEvent p1) {
659 fireChange(this);
660 }
661
662 public void contentsChanged(javax.swing.event.ListDataEvent p1) {
663 fireChange(this);
664 }
665
666 public void fireChange (Object source) {
667 ArrayList lst;
668
669 synchronized (this) {
670 lst = (ArrayList ) this.list.clone();
671 }
672
673 ChangeEvent event = new ChangeEvent(source);
674 for (int i=0; i< lst.size(); i++){
675 ChangeListener listener = (ChangeListener) lst.get(i);
676 listener.stateChanged(event);
677 }
678 }
679
680 private static abstract class Handler {
681
682 public abstract void handle(Parameters params);
683
684 public String getMessage() {
685 return null;
686 }
687
688 public boolean getRunInEDT() {
689 return false;
690 }
691
692 public boolean isRunnable() {
693 return true;
694 }
695
696 public String toString() {
697 return "Handler[message='" + getMessage() + "',runInEDT=" + getRunInEDT() + ",runnable=" + isRunnable() + "]"; }
699 }
700
701 private static final class Parameters {
702
703 private boolean result;
704
705 public boolean getResult() {
706 return result;
707 }
708
709 public void setResult(boolean result) {
710 this.result = result;
711 }
712 }
713 }
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