Class |
Line # |
Actions |
|||
---|---|---|---|---|---|
TableSorter | 92 | 84 | 50 | ||
TableSorter.Row | 376 | 19 | 9 | ||
TableSorter.TableModelHandler | 425 | 16 | 7 | ||
TableSorter.MouseHandler | 489 | 11 | 4 | ||
TableSorter.Arrow | 515 | 23 | 9 | ||
TableSorter.SortableHeaderRenderer | 578 | 8 | 3 | ||
TableSorter.Directive | 605 | 2 | 1 |
1 | /* | |
2 | * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$) | |
3 | * Copyright (C) $$Year-Rel$$ The Jalview Authors | |
4 | * | |
5 | * This file is part of Jalview. | |
6 | * | |
7 | * Jalview is free software: you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation, either version 3 | |
10 | * of the License, or (at your option) any later version. | |
11 | * | |
12 | * Jalview is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty | |
14 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR | |
15 | * PURPOSE. See the GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with Jalview. If not, see <http://www.gnu.org/licenses/>. | |
19 | * The Jalview Authors are detailed in the 'AUTHORS' file. | |
20 | */ | |
21 | package jalview.util; | |
22 | ||
23 | import java.awt.Color; | |
24 | import java.awt.Component; | |
25 | import java.awt.Graphics; | |
26 | import java.awt.event.MouseAdapter; | |
27 | import java.awt.event.MouseEvent; | |
28 | import java.awt.event.MouseListener; | |
29 | import java.util.ArrayList; | |
30 | import java.util.Arrays; | |
31 | import java.util.Comparator; | |
32 | import java.util.HashMap; | |
33 | import java.util.Iterator; | |
34 | import java.util.List; | |
35 | import java.util.Map; | |
36 | ||
37 | import javax.swing.Icon; | |
38 | import javax.swing.JLabel; | |
39 | import javax.swing.JTable; | |
40 | import javax.swing.event.TableModelEvent; | |
41 | import javax.swing.event.TableModelListener; | |
42 | import javax.swing.table.AbstractTableModel; | |
43 | import javax.swing.table.JTableHeader; | |
44 | import javax.swing.table.TableCellRenderer; | |
45 | import javax.swing.table.TableColumnModel; | |
46 | import javax.swing.table.TableModel; | |
47 | ||
48 | /** | |
49 | * TableSorter is a decorator for TableModels; adding sorting functionality to a | |
50 | * supplied TableModel. TableSorter does not store or copy the data in its | |
51 | * TableModel; instead it maintains a map from the row indexes of the view to | |
52 | * the row indexes of the model. As requests are made of the sorter (like | |
53 | * getValueAt(row, col)) they are passed to the underlying model after the row | |
54 | * numbers have been translated via the internal mapping array. This way, the | |
55 | * TableSorter appears to hold another copy of the table with the rows in a | |
56 | * different order. | |
57 | * <p/> | |
58 | * TableSorter registers itself as a listener to the underlying model, just as | |
59 | * the JTable itself would. Events recieved from the model are examined, | |
60 | * sometimes manipulated (typically widened), and then passed on to the | |
61 | * TableSorter's listeners (typically the JTable). If a change to the model has | |
62 | * invalidated the order of TableSorter's rows, a note of this is made and the | |
63 | * sorter will resort the rows the next time a value is requested. | |
64 | * <p/> | |
65 | * When the tableHeader property is set, either by using the setTableHeader() | |
66 | * method or the two argument constructor, the table header may be used as a | |
67 | * complete UI for TableSorter. The default renderer of the tableHeader is | |
68 | * decorated with a renderer that indicates the sorting status of each column. | |
69 | * In addition, a mouse listener is installed with the following behavior: | |
70 | * <ul> | |
71 | * <li>Mouse-click: Clears the sorting status of all other columns and advances | |
72 | * the sorting status of that column through three values: {NOT_SORTED, | |
73 | * ASCENDING, DESCENDING} (then back to NOT_SORTED again). | |
74 | * <li>SHIFT-mouse-click: Clears the sorting status of all other columns and | |
75 | * cycles the sorting status of the column through the same three values, in the | |
76 | * opposite order: {NOT_SORTED, DESCENDING, ASCENDING}. | |
77 | * <li>CONTROL-mouse-click and CONTROL-SHIFT-mouse-click: as above except that | |
78 | * the changes to the column do not cancel the statuses of columns that are | |
79 | * already sorting - giving a way to initiate a compound sort. | |
80 | * </ul> | |
81 | * <p/> | |
82 | * This is a long overdue rewrite of a class of the same name that first | |
83 | * appeared in the swing table demos in 1997. | |
84 | * | |
85 | * @author Philip Milne | |
86 | * @author Brendon McLean | |
87 | * @author Dan van Enckevort | |
88 | * @author Parwinder Sekhon | |
89 | * @version 2.0 02/27/04 | |
90 | */ | |
91 | ||
92 | public class TableSorter extends AbstractTableModel | |
93 | { | |
94 | protected TableModel tableModel; | |
95 | ||
96 | public static final int DESCENDING = -1; | |
97 | ||
98 | public static final int NOT_SORTED = 0; | |
99 | ||
100 | public static final int ASCENDING = 1; | |
101 | ||
102 | private static Directive EMPTY_DIRECTIVE = new Directive(-1, NOT_SORTED); | |
103 | ||
104 | public static final Comparator COMPARABLE_COMAPRATOR = new Comparator() | |
105 | { | |
106 | 0 | public int compare(Object o1, Object o2) |
107 | { | |
108 | 0 | return ((Comparable) o1).compareTo(o2); |
109 | } | |
110 | }; | |
111 | ||
112 | public static final Comparator LEXICAL_COMPARATOR = new Comparator() | |
113 | { | |
114 | 0 | public int compare(Object o1, Object o2) |
115 | { | |
116 | 0 | return o1.toString().compareTo(o2.toString()); |
117 | } | |
118 | }; | |
119 | ||
120 | private Row[] viewToModel; | |
121 | ||
122 | private int[] modelToView; | |
123 | ||
124 | private JTableHeader tableHeader; | |
125 | ||
126 | private MouseListener mouseListener; | |
127 | ||
128 | private TableModelListener tableModelListener; | |
129 | ||
130 | private Map columnComparators = new HashMap(); | |
131 | ||
132 | private List sortingColumns = new ArrayList(); | |
133 | ||
134 | 0 | public TableSorter() |
135 | { | |
136 | 0 | this.mouseListener = new MouseHandler(); |
137 | 0 | this.tableModelListener = new TableModelHandler(); |
138 | } | |
139 | ||
140 | 0 | public TableSorter(TableModel tableModel) |
141 | { | |
142 | 0 | this(); |
143 | 0 | setTableModel(tableModel); |
144 | } | |
145 | ||
146 | 0 | public TableSorter(TableModel tableModel, JTableHeader tableHeader) |
147 | { | |
148 | 0 | this(); |
149 | 0 | setTableHeader(tableHeader); |
150 | 0 | setTableModel(tableModel); |
151 | } | |
152 | ||
153 | 0 | private void clearSortingState() |
154 | { | |
155 | 0 | viewToModel = null; |
156 | 0 | modelToView = null; |
157 | } | |
158 | ||
159 | 0 | public TableModel getTableModel() |
160 | { | |
161 | 0 | return tableModel; |
162 | } | |
163 | ||
164 | 0 | public void setTableModel(TableModel tableModel) |
165 | { | |
166 | 0 | if (this.tableModel != null) |
167 | { | |
168 | 0 | this.tableModel.removeTableModelListener(tableModelListener); |
169 | } | |
170 | ||
171 | 0 | this.tableModel = tableModel; |
172 | 0 | if (this.tableModel != null) |
173 | { | |
174 | 0 | this.tableModel.addTableModelListener(tableModelListener); |
175 | } | |
176 | ||
177 | 0 | clearSortingState(); |
178 | 0 | fireTableStructureChanged(); |
179 | } | |
180 | ||
181 | 0 | public JTableHeader getTableHeader() |
182 | { | |
183 | 0 | return tableHeader; |
184 | } | |
185 | ||
186 | 0 | public void setTableHeader(JTableHeader tableHeader) |
187 | { | |
188 | 0 | if (this.tableHeader != null) |
189 | { | |
190 | 0 | this.tableHeader.removeMouseListener(mouseListener); |
191 | 0 | TableCellRenderer defaultRenderer = this.tableHeader |
192 | .getDefaultRenderer(); | |
193 | 0 | if (defaultRenderer instanceof SortableHeaderRenderer) |
194 | { | |
195 | 0 | this.tableHeader.setDefaultRenderer( |
196 | ((SortableHeaderRenderer) defaultRenderer).tableCellRenderer); | |
197 | } | |
198 | } | |
199 | 0 | this.tableHeader = tableHeader; |
200 | 0 | if (this.tableHeader != null) |
201 | { | |
202 | 0 | this.tableHeader.addMouseListener(mouseListener); |
203 | 0 | this.tableHeader.setDefaultRenderer(new SortableHeaderRenderer( |
204 | this.tableHeader.getDefaultRenderer())); | |
205 | } | |
206 | } | |
207 | ||
208 | 0 | public boolean isSorting() |
209 | { | |
210 | 0 | return sortingColumns.size() != 0; |
211 | } | |
212 | ||
213 | 0 | private Directive getDirective(int column) |
214 | { | |
215 | 0 | for (int i = 0; i < sortingColumns.size(); i++) |
216 | { | |
217 | 0 | Directive directive = (Directive) sortingColumns.get(i); |
218 | 0 | if (directive.column == column) |
219 | { | |
220 | 0 | return directive; |
221 | } | |
222 | } | |
223 | 0 | return EMPTY_DIRECTIVE; |
224 | } | |
225 | ||
226 | 0 | public int getSortingStatus(int column) |
227 | { | |
228 | 0 | return getDirective(column).direction; |
229 | } | |
230 | ||
231 | 0 | private void sortingStatusChanged() |
232 | { | |
233 | 0 | clearSortingState(); |
234 | 0 | fireTableDataChanged(); |
235 | 0 | if (tableHeader != null) |
236 | { | |
237 | 0 | tableHeader.repaint(); |
238 | } | |
239 | } | |
240 | ||
241 | 0 | public void setSortingStatus(int column, int status) |
242 | { | |
243 | 0 | Directive directive = getDirective(column); |
244 | 0 | if (directive != EMPTY_DIRECTIVE) |
245 | { | |
246 | 0 | sortingColumns.remove(directive); |
247 | } | |
248 | 0 | if (status != NOT_SORTED) |
249 | { | |
250 | 0 | sortingColumns.add(new Directive(column, status)); |
251 | } | |
252 | 0 | sortingStatusChanged(); |
253 | } | |
254 | ||
255 | 0 | protected Icon getHeaderRendererIcon(int column, int size) |
256 | { | |
257 | 0 | Directive directive = getDirective(column); |
258 | 0 | if (directive == EMPTY_DIRECTIVE) |
259 | { | |
260 | 0 | return null; |
261 | } | |
262 | 0 | return new Arrow(directive.direction == DESCENDING, size, |
263 | sortingColumns.indexOf(directive)); | |
264 | } | |
265 | ||
266 | 0 | private void cancelSorting() |
267 | { | |
268 | 0 | sortingColumns.clear(); |
269 | 0 | sortingStatusChanged(); |
270 | } | |
271 | ||
272 | 0 | public void setColumnComparator(Class type, Comparator comparator) |
273 | { | |
274 | 0 | if (comparator == null) |
275 | { | |
276 | 0 | columnComparators.remove(type); |
277 | } | |
278 | else | |
279 | { | |
280 | 0 | columnComparators.put(type, comparator); |
281 | } | |
282 | } | |
283 | ||
284 | 0 | protected Comparator getComparator(int column) |
285 | { | |
286 | 0 | Class columnType = tableModel.getColumnClass(column); |
287 | 0 | Comparator comparator = (Comparator) columnComparators.get(columnType); |
288 | 0 | if (comparator != null) |
289 | { | |
290 | 0 | return comparator; |
291 | } | |
292 | 0 | if (Comparable.class.isAssignableFrom(columnType)) |
293 | { | |
294 | 0 | return COMPARABLE_COMAPRATOR; |
295 | } | |
296 | 0 | return LEXICAL_COMPARATOR; |
297 | } | |
298 | ||
299 | 0 | private Row[] getViewToModel() |
300 | { | |
301 | 0 | if (viewToModel == null) |
302 | { | |
303 | 0 | int tableModelRowCount = tableModel.getRowCount(); |
304 | 0 | viewToModel = new Row[tableModelRowCount]; |
305 | 0 | for (int row = 0; row < tableModelRowCount; row++) |
306 | { | |
307 | 0 | viewToModel[row] = new Row(row); |
308 | } | |
309 | ||
310 | 0 | if (isSorting()) |
311 | { | |
312 | 0 | Arrays.sort(viewToModel); |
313 | } | |
314 | } | |
315 | 0 | return viewToModel; |
316 | } | |
317 | ||
318 | 0 | public int modelIndex(int viewIndex) |
319 | { | |
320 | 0 | return getViewToModel()[viewIndex].modelIndex; |
321 | } | |
322 | ||
323 | 0 | private int[] getModelToView() |
324 | { | |
325 | 0 | if (modelToView == null) |
326 | { | |
327 | 0 | int n = getViewToModel().length; |
328 | 0 | modelToView = new int[n]; |
329 | 0 | for (int i = 0; i < n; i++) |
330 | { | |
331 | 0 | modelToView[modelIndex(i)] = i; |
332 | } | |
333 | } | |
334 | 0 | return modelToView; |
335 | } | |
336 | ||
337 | // TableModel interface methods | |
338 | ||
339 | 0 | public int getRowCount() |
340 | { | |
341 | 0 | return (tableModel == null) ? 0 : tableModel.getRowCount(); |
342 | } | |
343 | ||
344 | 0 | public int getColumnCount() |
345 | { | |
346 | 0 | return (tableModel == null) ? 0 : tableModel.getColumnCount(); |
347 | } | |
348 | ||
349 | 0 | public String getColumnName(int column) |
350 | { | |
351 | 0 | return tableModel.getColumnName(column); |
352 | } | |
353 | ||
354 | 0 | public Class getColumnClass(int column) |
355 | { | |
356 | 0 | return tableModel.getColumnClass(column); |
357 | } | |
358 | ||
359 | 0 | public boolean isCellEditable(int row, int column) |
360 | { | |
361 | 0 | return tableModel.isCellEditable(modelIndex(row), column); |
362 | } | |
363 | ||
364 | 0 | public Object getValueAt(int row, int column) |
365 | { | |
366 | 0 | return tableModel.getValueAt(modelIndex(row), column); |
367 | } | |
368 | ||
369 | 0 | public void setValueAt(Object aValue, int row, int column) |
370 | { | |
371 | 0 | tableModel.setValueAt(aValue, modelIndex(row), column); |
372 | } | |
373 | ||
374 | // Helper classes | |
375 | ||
376 | private class Row implements Comparable | |
377 | { | |
378 | private int modelIndex; | |
379 | ||
380 | 0 | public Row(int index) |
381 | { | |
382 | 0 | this.modelIndex = index; |
383 | } | |
384 | ||
385 | 0 | public int compareTo(Object o) |
386 | { | |
387 | 0 | int row1 = modelIndex; |
388 | 0 | int row2 = ((Row) o).modelIndex; |
389 | ||
390 | 0 | for (Iterator it = sortingColumns.iterator(); it.hasNext();) |
391 | { | |
392 | 0 | Directive directive = (Directive) it.next(); |
393 | 0 | int column = directive.column; |
394 | 0 | Object o1 = tableModel.getValueAt(row1, column); |
395 | 0 | Object o2 = tableModel.getValueAt(row2, column); |
396 | ||
397 | 0 | int comparison = 0; |
398 | // Define null less than everything, except null. | |
399 | 0 | if (o1 == null && o2 == null) |
400 | { | |
401 | 0 | comparison = 0; |
402 | } | |
403 | 0 | else if (o1 == null) |
404 | { | |
405 | 0 | comparison = -1; |
406 | } | |
407 | 0 | else if (o2 == null) |
408 | { | |
409 | 0 | comparison = 1; |
410 | } | |
411 | else | |
412 | { | |
413 | 0 | comparison = getComparator(column).compare(o1, o2); |
414 | } | |
415 | 0 | if (comparison != 0) |
416 | { | |
417 | 0 | return directive.direction == DESCENDING ? -comparison |
418 | : comparison; | |
419 | } | |
420 | } | |
421 | 0 | return 0; |
422 | } | |
423 | } | |
424 | ||
425 | private class TableModelHandler implements TableModelListener | |
426 | { | |
427 | 0 | public void tableChanged(TableModelEvent e) |
428 | { | |
429 | // If we're not sorting by anything, just pass the event along. | |
430 | 0 | if (!isSorting()) |
431 | { | |
432 | 0 | clearSortingState(); |
433 | 0 | fireTableChanged(e); |
434 | 0 | return; |
435 | } | |
436 | ||
437 | // If the table structure has changed, cancel the sorting; the | |
438 | // sorting columns may have been either moved or deleted from | |
439 | // the model. | |
440 | 0 | if (e.getFirstRow() == TableModelEvent.HEADER_ROW) |
441 | { | |
442 | 0 | cancelSorting(); |
443 | 0 | fireTableChanged(e); |
444 | 0 | return; |
445 | } | |
446 | ||
447 | // We can map a cell event through to the view without widening | |
448 | // when the following conditions apply: | |
449 | // | |
450 | // a) all the changes are on one row (e.getFirstRow() == e.getLastRow()) | |
451 | // and, | |
452 | // b) all the changes are in one column (column != | |
453 | // TableModelEvent.ALL_COLUMNS) and, | |
454 | // c) we are not sorting on that column (getSortingStatus(column) == | |
455 | // NOT_SORTED) and, | |
456 | // d) a reverse lookup will not trigger a sort (modelToView != null) | |
457 | // | |
458 | // Note: INSERT and DELETE events fail this test as they have column == | |
459 | // ALL_COLUMNS. | |
460 | // | |
461 | // The last check, for (modelToView != null) is to see if modelToView | |
462 | // is already allocated. If we don't do this check; sorting can become | |
463 | // a performance bottleneck for applications where cells | |
464 | // change rapidly in different parts of the table. If cells | |
465 | // change alternately in the sorting column and then outside of | |
466 | // it this class can end up re-sorting on alternate cell updates - | |
467 | // which can be a performance problem for large tables. The last | |
468 | // clause avoids this problem. | |
469 | 0 | int column = e.getColumn(); |
470 | 0 | if (e.getFirstRow() == e.getLastRow() |
471 | && column != TableModelEvent.ALL_COLUMNS | |
472 | && getSortingStatus(column) == NOT_SORTED | |
473 | && modelToView != null) | |
474 | { | |
475 | 0 | int viewIndex = getModelToView()[e.getFirstRow()]; |
476 | 0 | fireTableChanged(new TableModelEvent(TableSorter.this, viewIndex, |
477 | viewIndex, column, e.getType())); | |
478 | 0 | return; |
479 | } | |
480 | ||
481 | // Something has happened to the data that may have invalidated the row | |
482 | // order. | |
483 | 0 | clearSortingState(); |
484 | 0 | fireTableDataChanged(); |
485 | 0 | return; |
486 | } | |
487 | } | |
488 | ||
489 | private class MouseHandler extends MouseAdapter | |
490 | { | |
491 | 0 | public void mouseClicked(MouseEvent e) |
492 | { | |
493 | 0 | JTableHeader h = (JTableHeader) e.getSource(); |
494 | 0 | TableColumnModel columnModel = h.getColumnModel(); |
495 | 0 | int viewColumn = columnModel.getColumnIndexAtX(e.getX()); |
496 | 0 | int column = columnModel.getColumn(viewColumn).getModelIndex(); |
497 | 0 | if (column != -1) |
498 | { | |
499 | 0 | int status = getSortingStatus(column); |
500 | 0 | if (!e.isControlDown()) |
501 | { | |
502 | 0 | cancelSorting(); |
503 | } | |
504 | // Cycle the sorting states through {NOT_SORTED, ASCENDING, DESCENDING} | |
505 | // or | |
506 | // {NOT_SORTED, DESCENDING, ASCENDING} depending on whether shift is | |
507 | // pressed. | |
508 | 0 | status = status + (e.isShiftDown() ? -1 : 1); |
509 | 0 | status = (status + 4) % 3 - 1; // signed mod, returning {-1, 0, 1} |
510 | 0 | setSortingStatus(column, status); |
511 | } | |
512 | } | |
513 | } | |
514 | ||
515 | private static class Arrow implements Icon | |
516 | { | |
517 | private boolean descending; | |
518 | ||
519 | private int size; | |
520 | ||
521 | private int priority; | |
522 | ||
523 | 0 | public Arrow(boolean descending, int size, int priority) |
524 | { | |
525 | 0 | this.descending = descending; |
526 | 0 | this.size = size; |
527 | 0 | this.priority = priority; |
528 | } | |
529 | ||
530 | 0 | public void paintIcon(Component c, Graphics g, int x, int y) |
531 | { | |
532 | 0 | Color color = c == null ? Color.GRAY : c.getBackground(); |
533 | // In a compound sort, make each succesive triangle 20% | |
534 | // smaller than the previous one. | |
535 | 0 | int dx = (int) (size / 2 * Math.pow(0.8, priority)); |
536 | 0 | int dy = descending ? dx : -dx; |
537 | // Align icon (roughly) with font baseline. | |
538 | 0 | y = y + 5 * size / 6 + (descending ? -dy : 0); |
539 | 0 | int shift = descending ? 1 : -1; |
540 | 0 | g.translate(x, y); |
541 | ||
542 | // Right diagonal. | |
543 | 0 | g.setColor(color.darker()); |
544 | 0 | g.drawLine(dx / 2, dy, 0, 0); |
545 | 0 | g.drawLine(dx / 2, dy + shift, 0, shift); |
546 | ||
547 | // Left diagonal. | |
548 | 0 | g.setColor(color.brighter()); |
549 | 0 | g.drawLine(dx / 2, dy, dx, 0); |
550 | 0 | g.drawLine(dx / 2, dy + shift, dx, shift); |
551 | ||
552 | // Horizontal line. | |
553 | 0 | if (descending) |
554 | { | |
555 | 0 | g.setColor(color.darker().darker()); |
556 | } | |
557 | else | |
558 | { | |
559 | 0 | g.setColor(color.brighter().brighter()); |
560 | } | |
561 | 0 | g.drawLine(dx, 0, 0, 0); |
562 | ||
563 | 0 | g.setColor(color); |
564 | 0 | g.translate(-x, -y); |
565 | } | |
566 | ||
567 | 0 | public int getIconWidth() |
568 | { | |
569 | 0 | return size; |
570 | } | |
571 | ||
572 | 0 | public int getIconHeight() |
573 | { | |
574 | 0 | return size; |
575 | } | |
576 | } | |
577 | ||
578 | private class SortableHeaderRenderer implements TableCellRenderer | |
579 | { | |
580 | private TableCellRenderer tableCellRenderer; | |
581 | ||
582 | 0 | public SortableHeaderRenderer(TableCellRenderer tableCellRenderer) |
583 | { | |
584 | 0 | this.tableCellRenderer = tableCellRenderer; |
585 | } | |
586 | ||
587 | 0 | public Component getTableCellRendererComponent(JTable table, |
588 | Object value, boolean isSelected, boolean hasFocus, int row, | |
589 | int column) | |
590 | { | |
591 | 0 | Component c = tableCellRenderer.getTableCellRendererComponent(table, |
592 | value, isSelected, hasFocus, row, column); | |
593 | 0 | if (c instanceof JLabel) |
594 | { | |
595 | 0 | JLabel l = (JLabel) c; |
596 | 0 | l.setHorizontalTextPosition(JLabel.LEFT); |
597 | 0 | int modelColumn = table.convertColumnIndexToModel(column); |
598 | 0 | l.setIcon( |
599 | getHeaderRendererIcon(modelColumn, l.getFont().getSize())); | |
600 | } | |
601 | 0 | return c; |
602 | } | |
603 | } | |
604 | ||
605 | private static class Directive | |
606 | { | |
607 | private int column; | |
608 | ||
609 | private int direction; | |
610 | ||
611 | 0 | public Directive(int column, int direction) |
612 | { | |
613 | 0 | this.column = column; |
614 | 0 | this.direction = direction; |
615 | } | |
616 | } | |
617 | } |