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26d2bd05 NR |
1 | package be.nikiroo.jvcard; |
2 | ||
5ad0e17e | 3 | import java.security.InvalidParameterException; |
26d2bd05 NR |
4 | import java.util.ArrayList; |
5 | import java.util.Collection; | |
e253bd50 NR |
6 | import java.util.Collections; |
7 | import java.util.Comparator; | |
26d2bd05 | 8 | import java.util.Iterator; |
e253bd50 | 9 | import java.util.LinkedList; |
26d2bd05 NR |
10 | import java.util.List; |
11 | import java.util.ListIterator; | |
12 | ||
7da41ecd | 13 | import be.nikiroo.jvcard.resources.StringUtils; |
cf77cb35 | 14 | |
26d2bd05 NR |
15 | /** |
16 | * This class is basically a List with a parent and a "dirty" state check. It | |
17 | * sends all commands down to the initial list, but will mark itself and its | |
18 | * children as dirty or not when needed. | |
19 | * | |
5ad0e17e NR |
20 | * <p> |
21 | * All child elements can identify their parent, and must not be added to 2 | |
22 | * different objects without without first being removed from the previous one. | |
23 | * </p> | |
26d2bd05 | 24 | * |
5ad0e17e | 25 | * <p> |
26d2bd05 NR |
26 | * The dirty state is bubbling up (when dirty = true) or down (when dirty = |
27 | * false) -- so, making changes to a child element will also mark its parent as | |
28 | * "dirty", and marking an element as pristine will also affect all its child | |
29 | * elements. | |
5ad0e17e | 30 | * </p> |
26d2bd05 NR |
31 | * |
32 | * @author niki | |
33 | * | |
34 | * @param <E> | |
35 | * the type of the child elements | |
36 | */ | |
37 | public abstract class BaseClass<E extends BaseClass<?>> implements List<E> { | |
38 | protected boolean dirty; | |
39 | protected BaseClass<?> parent; | |
40 | private List<E> list; | |
41 | ||
e253bd50 NR |
42 | private Comparator<E> comparator = new Comparator<E>() { |
43 | @Override | |
44 | public int compare(E o1, E o2) { | |
45 | if (o1 == null && o2 == null) | |
46 | return 0; | |
47 | if (o1 == null && o2 != null) | |
48 | return -1; | |
49 | if (o1 != null && o2 == null) | |
50 | return 1; | |
51 | ||
52 | return o1.getId().compareTo(o2.getId()); | |
53 | } | |
54 | }; | |
55 | ||
26d2bd05 | 56 | /** |
b9f192ed NR |
57 | * Create a new {@link BaseClass} with the items in the given list as its |
58 | * descendants. | |
59 | * | |
60 | * Note: the elements will be copied from the {@link List}, you cannot | |
61 | * manage the {@link List} from outside | |
26d2bd05 NR |
62 | * |
63 | * @param list | |
64 | * the descendants of this object, or NULL if none | |
65 | */ | |
66 | protected BaseClass(List<E> list) { | |
67 | this.list = new ArrayList<E>(); | |
b9f192ed | 68 | |
49a08b5d NR |
69 | if (list != null) { |
70 | this.list.addAll(list); | |
71 | } | |
b9f192ed | 72 | |
26d2bd05 NR |
73 | for (E child : this) { |
74 | _enter(child, true); | |
75 | } | |
76 | } | |
77 | ||
78 | /** | |
79 | * Check if this element has unsaved changes. | |
80 | * | |
81 | * @return TRUE if it has | |
82 | */ | |
83 | public boolean isDirty() { | |
84 | return dirty; | |
85 | } | |
86 | ||
87 | /** | |
88 | * Delete this element from its parent if any. | |
89 | * | |
90 | * @return TRUE in case of success | |
91 | */ | |
92 | public boolean delete() { | |
93 | if (parent != null) { | |
94 | return parent.remove(this); | |
95 | } | |
96 | ||
97 | return false; | |
98 | } | |
99 | ||
100 | /** | |
101 | * Replace the elements contained in this with those in the given | |
102 | * {@link List}. | |
103 | * | |
104 | * Note: the elements will be copied from the {@link List}, you cannot | |
105 | * manage the {@link List} from outside | |
106 | * | |
107 | * @param list | |
108 | * the list of new elements | |
109 | */ | |
110 | public void replaceListContent(List<E> list) { | |
e253bd50 NR |
111 | List<E> del = new LinkedList<E>(); |
112 | List<E> add = new LinkedList<E>(); | |
26d2bd05 | 113 | |
e253bd50 NR |
114 | if (!compare(list, add, del, del, add)) { |
115 | removeAll(del); | |
116 | addAll(add); | |
26d2bd05 | 117 | } |
e253bd50 NR |
118 | } |
119 | ||
120 | /** | |
121 | * Compare the elements contained in <tt>this</tt> with those in the given | |
122 | * {@link List}. It will return TRUE in case of equality, will return FALSE | |
123 | * if not. | |
124 | * | |
125 | * If not equals, the differences will be represented by the given | |
126 | * {@link List}s if they are not NULL. | |
127 | * <ul> | |
5ad0e17e NR |
128 | * <li><tt>added</tt> will represent the elements in <tt>list</tt> but not |
129 | * in <tt>this</tt></li> | |
e253bd50 NR |
130 | * <li><tt>removed</tt> will represent the elements in <tt>this</tt> but not |
131 | * in <tt>list</tt></li> | |
132 | * <li><tt>from<tt> will represent the elements in <tt>list</tt> that are | |
133 | * already contained in <tt>this</tt> but are not equals to them (the | |
134 | * original element from <tt>this</tt> is stored here)</li> | |
135 | * <li><tt>to<tt> will represent the elements in <tt>list</tt> that are | |
136 | * already contained in <tt>this</tt> but are not equals to them (the | |
137 | * changed element from <tt>list</tt> is stored here)</li> | |
138 | * </ul> | |
139 | * | |
140 | * @param list | |
141 | * the list of new elements | |
142 | * @param added | |
143 | * the list to add the <tt>added</tt> elements to, or NULL | |
144 | * @param removed | |
145 | * the list to add the <tt>removed</tt> elements to, or NULL | |
146 | * @param from | |
147 | * the map to add the <tt>from</tt> elements, or NULL | |
148 | * @param to | |
149 | * the map to add the <tt>to</tt> elements, or NULL | |
150 | * | |
151 | * @return TRUE if the elements are identical | |
152 | */ | |
153 | @SuppressWarnings({ "unchecked", "rawtypes" }) | |
154 | public boolean compare(List<E> list, List<E> added, List<E> removed, | |
155 | List<E> from, List<E> to) { | |
156 | Collections.sort(this.list, comparator); | |
157 | ||
158 | List<E> mine = new LinkedList<E>(this.list); | |
159 | List<E> other = new LinkedList<E>(list); | |
160 | ||
161 | Collections.sort(other, comparator); | |
162 | ||
163 | boolean equ = true; | |
4298276a NR |
164 | E here = mine.size() > 0 ? mine.remove(0) : null; |
165 | E there = other.size() > 0 ? other.remove(0) : null; | |
e253bd50 | 166 | |
4298276a NR |
167 | while (here != null || there != null) { |
168 | if (here == null | |
169 | || (there != null && comparator.compare(here, there) > 0)) { | |
e253bd50 NR |
170 | if (added != null) |
171 | added.add(there); | |
4298276a | 172 | there = null; |
e253bd50 NR |
173 | equ = false; |
174 | } else if (there == null || comparator.compare(here, there) < 0) { | |
175 | if (removed != null) | |
176 | removed.add(here); | |
4298276a | 177 | here = null; |
e253bd50 NR |
178 | equ = false; |
179 | } else { | |
180 | // they represent the same item | |
cf77cb35 | 181 | if (!((BaseClass) here).isEquals(there, false)) { |
e253bd50 NR |
182 | if (from != null) |
183 | from.add(here); | |
184 | if (to != null) | |
185 | to.add(there); | |
186 | equ = false; | |
187 | } | |
4298276a NR |
188 | here = null; |
189 | there = null; | |
26d2bd05 | 190 | } |
4298276a NR |
191 | |
192 | if (here == null && mine.size() > 0) | |
193 | here = mine.remove(0); | |
194 | if (there == null && other.size() > 0) | |
195 | there = other.remove(0); | |
26d2bd05 NR |
196 | } |
197 | ||
e253bd50 | 198 | return equ; |
26d2bd05 NR |
199 | } |
200 | ||
e253bd50 NR |
201 | /** |
202 | * Check if the given instance and this one represent the same objects (they | |
203 | * may have different states). | |
204 | * | |
205 | * @param other | |
206 | * the other instance | |
207 | * | |
208 | * @return TRUE if they represent the same object | |
209 | */ | |
210 | public boolean isSame(BaseClass<E> other) { | |
211 | if (other == null) | |
212 | return false; | |
213 | ||
214 | if (!getClass().equals(other.getClass())) | |
215 | return false; | |
216 | ||
217 | return getId().equals(other.getId()); | |
218 | } | |
219 | ||
220 | /** | |
221 | * Check if the given instance and this one are equivalent (both objects in | |
222 | * the same state, all child elements equivalent). | |
223 | * | |
224 | * @param other | |
225 | * the other instance | |
226 | * | |
cf77cb35 NR |
227 | * @param contentOnly |
228 | * do not check the state of the object itslef, only its content | |
229 | * | |
e253bd50 NR |
230 | * @return TRUE if they are equivalent |
231 | */ | |
232 | @SuppressWarnings({ "unchecked", "rawtypes" }) | |
cf77cb35 | 233 | public boolean isEquals(BaseClass<E> other, boolean contentOnly) { |
e253bd50 NR |
234 | if (other == null) |
235 | return false; | |
236 | ||
237 | if (size() != other.size()) | |
238 | return false; | |
239 | ||
cf77cb35 NR |
240 | if (!contentOnly) { |
241 | if (!isSame(other)) | |
242 | return false; | |
e253bd50 | 243 | |
cf77cb35 NR |
244 | if (!getState().equals(other.getState())) |
245 | return false; | |
246 | } | |
e253bd50 NR |
247 | |
248 | Collections.sort(list, comparator); | |
249 | Collections.sort(other.list, other.comparator); | |
250 | for (int index = 0; index < size(); index++) { | |
cf77cb35 | 251 | if (!((BaseClass) get(index)).isEquals(other.get(index), false)) |
e253bd50 NR |
252 | return false; |
253 | } | |
254 | ||
255 | return true; | |
256 | } | |
257 | ||
cf77cb35 | 258 | /** |
5ad0e17e NR |
259 | * Get the recursive state of the current object, i.e., its children |
260 | * included. It represents the full state information about this object's | |
261 | * children. It may not contains spaces nor new lines. | |
e4444b0b NR |
262 | * |
263 | * <p> | |
264 | * Not that this state is <b>lossy</b>. You cannot retrieve the data from | |
5ad0e17e | 265 | * the state, it can only be used as an ID to check if data are identical. |
e4444b0b | 266 | * </p> |
cf77cb35 | 267 | * |
5ad0e17e NR |
268 | * @param self |
269 | * also include state information about the current object itself | |
270 | * (as opposed to its children) | |
271 | * | |
cf77cb35 | 272 | * @return a {@link String} representing the current content state of this |
0b6140e4 | 273 | * object, i.e., its children included |
cf77cb35 | 274 | */ |
5ad0e17e | 275 | public String getContentState(boolean self) { |
cf77cb35 | 276 | StringBuilder builder = new StringBuilder(); |
5ad0e17e | 277 | buildContentStateRaw(builder, self); |
0b6140e4 NR |
278 | return StringUtils.getHash(builder.toString()); |
279 | } | |
cf77cb35 | 280 | |
0b6140e4 NR |
281 | /** |
282 | * Return the (first) child element with the given ID or NULL if not found. | |
283 | * | |
284 | * @param id | |
285 | * the id to look for | |
286 | * | |
287 | * @return the child element or NULL | |
288 | */ | |
289 | public E getById(String id) { | |
cf77cb35 | 290 | for (E child : this) { |
0b6140e4 NR |
291 | if (id == null) { |
292 | if (child.getId() == null) | |
293 | return child; | |
294 | } else { | |
295 | if (id.equals(child.getId())) | |
296 | return child; | |
297 | } | |
cf77cb35 NR |
298 | } |
299 | ||
0b6140e4 | 300 | return null; |
cf77cb35 NR |
301 | } |
302 | ||
5ad0e17e NR |
303 | /** |
304 | * Return a {@link String} that can be used to identify this object in DEBUG | |
305 | * mode, i.e., a "toString" method that can identify the object's content | |
306 | * but still be readable in a log. | |
307 | * | |
308 | * @param depth | |
309 | * the depth into which to descend (0 = only this object, not its | |
310 | * children) | |
311 | * | |
312 | * @return the debug {@link String} | |
313 | */ | |
314 | public String getDebugInfo(int depth) { | |
315 | StringBuilder builder = new StringBuilder(); | |
316 | getDebugInfo(builder, depth, 0); | |
317 | return builder.toString(); | |
318 | } | |
319 | ||
e253bd50 NR |
320 | /** |
321 | * Return the current ID of this object -- it is allowed to change over time | |
322 | * (so, do not cache it). | |
323 | * | |
324 | * @return the current ID | |
325 | */ | |
326 | abstract public String getId(); | |
327 | ||
328 | /** | |
329 | * Get the state of the current object, children <b>not included</b>. It | |
cf77cb35 | 330 | * represents the full state information about this object, but do not check |
e4444b0b NR |
331 | * its children (see {@link BaseClass#getContentState()} for that). It may |
332 | * not contains spaces nor new lines. | |
333 | * | |
334 | * <p> | |
335 | * Not that this state is <b>lossy</b>. You cannot retrieve the data from | |
336 | * the state, it can only be used as an ID to check if thw data are | |
337 | * identical. | |
338 | * </p> | |
e253bd50 NR |
339 | * |
340 | * @return a {@link String} representing the current state of this object, | |
341 | * children not included | |
342 | */ | |
343 | abstract public String getState(); | |
344 | ||
0b6140e4 | 345 | /** |
5ad0e17e NR |
346 | * Get the recursive state of the current object, i.e., its children |
347 | * included. It represents the full state information about this object's | |
348 | * children. | |
0b6140e4 NR |
349 | * |
350 | * It is not hashed. | |
351 | * | |
352 | * @param builder | |
353 | * the {@link StringBuilder} that will represent the current | |
354 | * content state of this object, i.e., its children included | |
5ad0e17e NR |
355 | * @param self |
356 | * also include state information about the current object itself | |
357 | * (as opposed to its children) | |
0b6140e4 | 358 | */ |
5ad0e17e NR |
359 | void buildContentStateRaw(StringBuilder builder, boolean self) { |
360 | Collections.sort(this.list, comparator); | |
361 | if (self) | |
362 | builder.append(getState()); | |
0b6140e4 | 363 | for (E child : this) { |
5ad0e17e NR |
364 | child.buildContentStateRaw(builder, true); |
365 | } | |
366 | } | |
367 | ||
368 | /** | |
369 | * Populate a {@link StringBuilder} that can be used to identify this object | |
370 | * in DEBUG mode, i.e., a "toString" method that can identify the object's | |
371 | * content but still be readable in a log. | |
372 | * | |
373 | * @param depth | |
374 | * the depth into which to descend (0 = only this object, not its | |
375 | * children) | |
376 | * | |
377 | * @param tab | |
378 | * the current tabulation increment | |
379 | */ | |
380 | void getDebugInfo(StringBuilder builder, int depth, int tab) { | |
381 | for (int i = 0; i < tab; i++) | |
382 | builder.append(" "); | |
383 | builder.append(getContentState(false) + " " + getId()); | |
384 | ||
385 | if (depth > 0) | |
386 | builder.append(": ["); | |
387 | ||
388 | if (depth > 0) { | |
389 | for (E child : this) { | |
390 | builder.append("\n"); | |
391 | child.getDebugInfo(builder, depth - 1, tab + 1); | |
392 | } | |
393 | } | |
394 | if (depth > 0) { | |
395 | builder.append("\n"); | |
396 | for (int i = 0; i < tab; i++) | |
397 | builder.append(" "); | |
398 | builder.append("]"); | |
0b6140e4 NR |
399 | } |
400 | } | |
401 | ||
26d2bd05 NR |
402 | /** |
403 | * Notify that this element has unsaved changes. | |
404 | */ | |
405 | void setDirty() { | |
406 | dirty = true; | |
b9f192ed NR |
407 | if (parent != null) { |
408 | parent.setDirty(); | |
409 | } | |
26d2bd05 NR |
410 | } |
411 | ||
412 | /** | |
413 | * Notify this element <i>and all its descendants</i> that it is in pristine | |
414 | * state (as opposed to dirty). | |
415 | */ | |
416 | void setPristine() { | |
417 | dirty = false; | |
418 | for (E child : this) { | |
419 | child.setPristine(); | |
420 | } | |
421 | } | |
422 | ||
423 | /** | |
424 | * Set the parent of this element <i>and all its descendants</i>. | |
425 | * | |
426 | * @param parent | |
427 | * the new parent | |
428 | */ | |
429 | void setParent(BaseClass<?> parent) { | |
430 | this.parent = parent; | |
431 | for (E child : this) { | |
432 | child.setParent(this); | |
433 | } | |
434 | } | |
435 | ||
aecb3399 NR |
436 | /** |
437 | * Escape the given value to VCF standard. | |
438 | * | |
439 | * @param value | |
440 | * the value to escape | |
441 | * | |
442 | * @return the escaped value | |
443 | */ | |
444 | protected String escape(String value) { | |
445 | if (value == null) | |
446 | return null; | |
447 | ||
448 | return value.replaceAll(",", "\\\\,").replaceAll(";", "\\\\;") | |
449 | .replaceAll("\n", "\\\\n"); | |
450 | } | |
451 | ||
452 | /** | |
453 | * Escape the given value to VCF standard. | |
454 | * | |
455 | * @param value | |
456 | * the value to escape | |
457 | * | |
458 | * @return the escaped value | |
459 | */ | |
460 | protected String unescape(String value) { | |
461 | if (value == null) | |
462 | return null; | |
463 | ||
464 | return value.replaceAll("\\\\,", ",").replaceAll("\\\\;", ";") | |
465 | ||
466 | .replaceAll("\\\\n", "\n"); | |
467 | } | |
468 | ||
26d2bd05 NR |
469 | /** |
470 | * Each element that leaves the parent will pass trough here. | |
471 | * | |
472 | * @param child | |
473 | * the element to remove from this | |
474 | */ | |
475 | private void _leave(E child) { | |
5ad0e17e NR |
476 | if (child.parent != null && child.parent != this) { |
477 | throw new InvalidParameterException( | |
478 | "You are removing this child from its rightful parent, it must be yours to do so"); | |
479 | } | |
480 | ||
481 | child.parent = null; | |
26d2bd05 NR |
482 | setDirty(); |
483 | } | |
484 | ||
485 | /** | |
486 | * Each element that enters the parent will pass trough here. | |
487 | * | |
488 | * @param child | |
489 | * the element to add to this | |
490 | */ | |
491 | private void _enter(E child) { | |
492 | _enter(child, false); | |
493 | } | |
494 | ||
495 | /** | |
496 | * Each element that enters the parent will pass trough here. | |
497 | * | |
498 | * @param child | |
499 | * the element to add to this | |
500 | */ | |
501 | private void _enter(E child, boolean initialLoad) { | |
5ad0e17e NR |
502 | if (child.parent != null && child.parent != this) { |
503 | throw new InvalidParameterException( | |
504 | "You are stealing this child from its rightful parent, you must remove it first"); | |
505 | } | |
506 | ||
26d2bd05 | 507 | child.setParent(this); |
b9f192ed NR |
508 | if (!initialLoad) { |
509 | setDirty(); | |
26d2bd05 | 510 | child.setDirty(); |
b9f192ed | 511 | } |
26d2bd05 NR |
512 | } |
513 | ||
514 | @Override | |
515 | public boolean add(E e) { | |
516 | _enter(e, false); | |
517 | return list.add(e); | |
518 | } | |
519 | ||
520 | @Override | |
521 | @SuppressWarnings("unchecked") | |
522 | public boolean remove(Object o) { | |
523 | if (list.remove(o)) { | |
524 | if (o instanceof BaseClass<?>) { | |
525 | _leave((E) o); // expected warning | |
526 | } | |
527 | return true; | |
528 | } | |
529 | ||
530 | return false; | |
531 | } | |
532 | ||
533 | @Override | |
534 | public boolean addAll(Collection<? extends E> c) { | |
535 | for (E child : c) { | |
536 | _enter(child); | |
537 | } | |
538 | ||
539 | return list.addAll(c); | |
540 | } | |
541 | ||
542 | @Override | |
543 | public boolean addAll(int index, Collection<? extends E> c) { | |
544 | for (E child : c) { | |
545 | _enter(child); | |
546 | } | |
547 | ||
548 | return list.addAll(index, c); | |
549 | } | |
550 | ||
551 | @Override | |
552 | public boolean removeAll(Collection<?> c) { | |
553 | boolean changed = false; | |
554 | ||
555 | for (Object o : c) { | |
556 | if (remove(o)) | |
557 | changed = true; | |
558 | } | |
559 | ||
560 | return changed; | |
561 | } | |
562 | ||
563 | @Override | |
564 | public boolean retainAll(Collection<?> c) { | |
565 | ArrayList<Object> del = new ArrayList<Object>(); | |
566 | for (Object o : c) { | |
567 | del.add(o); | |
568 | } | |
569 | return removeAll(del); | |
570 | } | |
571 | ||
572 | @Override | |
573 | public void clear() { | |
574 | for (E child : this) { | |
575 | _leave(child); | |
576 | } | |
577 | ||
578 | list.clear(); | |
579 | } | |
580 | ||
581 | @Override | |
582 | public E set(int index, E element) { | |
583 | E child = get(index); | |
584 | if (child != null) | |
585 | _leave(child); | |
586 | _enter(element); | |
587 | ||
588 | return list.set(index, element); | |
589 | } | |
590 | ||
591 | @Override | |
592 | public void add(int index, E element) { | |
593 | _enter(element); | |
594 | list.add(index, element); | |
595 | } | |
596 | ||
597 | @Override | |
598 | public E remove(int index) { | |
599 | E child = get(index); | |
600 | _leave(child); | |
601 | return list.remove(index); | |
602 | } | |
603 | ||
604 | @Override | |
605 | public Iterator<E> iterator() { | |
606 | return listIterator(0); | |
607 | } | |
608 | ||
609 | @Override | |
610 | public ListIterator<E> listIterator() { | |
611 | return listIterator(0); | |
612 | } | |
613 | ||
614 | @Override | |
615 | public ListIterator<E> listIterator(int index) { | |
616 | final int i = index; | |
617 | return new ListIterator<E>() { | |
618 | ListIterator<E> base = list.listIterator(i); | |
619 | E last; | |
620 | ||
621 | @Override | |
622 | public boolean hasNext() { | |
623 | return base.hasNext(); | |
624 | } | |
625 | ||
626 | @Override | |
627 | public E next() { | |
628 | last = base.next(); | |
629 | return last; | |
630 | } | |
631 | ||
632 | @Override | |
633 | public boolean hasPrevious() { | |
634 | return base.hasPrevious(); | |
635 | } | |
636 | ||
637 | @Override | |
638 | public E previous() { | |
639 | last = base.previous(); | |
640 | return last; | |
641 | } | |
642 | ||
643 | @Override | |
644 | public int nextIndex() { | |
645 | return base.nextIndex(); | |
646 | } | |
647 | ||
648 | @Override | |
649 | public int previousIndex() { | |
650 | return base.previousIndex(); | |
651 | } | |
652 | ||
653 | @Override | |
654 | public void remove() { | |
655 | base.remove(); | |
656 | _leave(last); | |
657 | } | |
658 | ||
659 | @Override | |
660 | public void set(E e) { | |
661 | base.set(e); | |
662 | _leave(last); | |
663 | _enter(e); | |
664 | } | |
665 | ||
666 | @Override | |
667 | public void add(E e) { | |
668 | base.add(e); | |
669 | _enter(e); | |
670 | } | |
671 | }; | |
672 | } | |
673 | ||
674 | @Override | |
675 | public Object[] toArray() { | |
676 | return list.toArray(); | |
677 | } | |
678 | ||
679 | @Override | |
680 | public <T> T[] toArray(T[] a) { | |
681 | return list.toArray(a); | |
682 | } | |
683 | ||
684 | @Override | |
685 | public int size() { | |
686 | return list.size(); | |
687 | } | |
688 | ||
689 | @Override | |
690 | public boolean isEmpty() { | |
691 | return list.isEmpty(); | |
692 | } | |
693 | ||
694 | @Override | |
695 | public boolean contains(Object o) { | |
696 | return list.contains(o); | |
697 | } | |
698 | ||
699 | @Override | |
700 | public boolean containsAll(Collection<?> c) { | |
701 | return list.containsAll(c); | |
702 | } | |
703 | ||
704 | @Override | |
705 | public E get(int index) { | |
706 | return list.get(index); | |
707 | } | |
708 | ||
709 | @Override | |
710 | public int indexOf(Object o) { | |
711 | return list.indexOf(o); | |
712 | } | |
713 | ||
714 | @Override | |
715 | public int lastIndexOf(Object o) { | |
716 | return list.lastIndexOf(o); | |
717 | } | |
718 | ||
719 | @Override | |
720 | public List<E> subList(int fromIndex, int toIndex) { | |
721 | return list.subList(fromIndex, toIndex); | |
722 | } | |
723 | } |