| 1 |
|
/* |
| 2 |
|
* %W% %E% |
| 3 |
|
* |
| 4 |
< |
* Copyright 2004 Sun Microsystems, Inc. All rights reserved. |
| 4 |
> |
* Copyright 2005 Sun Microsystems, Inc. All rights reserved. |
| 5 |
|
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. |
| 6 |
|
*/ |
| 7 |
|
|
| 8 |
< |
package java.util; |
| 8 |
> |
package java.util; |
| 9 |
|
|
| 10 |
|
/** |
| 11 |
|
* This class implements the <tt>Set</tt> interface, backed by a |
| 210 |
|
/** |
| 211 |
|
* Adds the specified element to this set if it is not already present. |
| 212 |
|
* |
| 213 |
< |
* @param o element to be added to this set. |
| 213 |
> |
* @param e element to be added to this set. |
| 214 |
|
* @return <tt>true</tt> if the set did not already contain the specified |
| 215 |
|
* element. |
| 216 |
|
* |
| 217 |
|
* @throws ClassCastException if the specified object cannot be compared |
| 218 |
|
* with the elements currently in the set. |
| 219 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 219 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 220 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 221 |
|
* not tolerate <tt>null</tt> keys. |
| 222 |
|
*/ |
| 223 |
< |
public boolean add(E o) { |
| 224 |
< |
return m.put(o, PRESENT)==null; |
| 223 |
> |
public boolean add(E e) { |
| 224 |
> |
return m.put(e, PRESENT)==null; |
| 225 |
|
} |
| 226 |
|
|
| 227 |
|
/** |
| 255 |
|
* |
| 256 |
|
* @throws ClassCastException if the elements provided cannot be compared |
| 257 |
|
* with the elements currently in the set. |
| 258 |
< |
* @throws NullPointerException of the specified collection is |
| 258 |
> |
* @throws NullPointerException if the specified collection is |
| 259 |
|
* <tt>null</tt> or if any element is <tt>null</tt> and this map |
| 260 |
|
* uses natural ordering, or its comparator does not tolerate |
| 261 |
|
* <tt>null</tt> keys. |
| 265 |
|
if (m.size()==0 && c.size() > 0 && |
| 266 |
|
c instanceof SortedSet && |
| 267 |
|
m instanceof TreeMap) { |
| 268 |
< |
SortedSet<Map.Entry<E, Object>> set = (SortedSet<Map.Entry<E, Object>>) (SortedSet) c; |
| 268 |
> |
SortedSet<? extends E> set = (SortedSet<? extends E>) c; |
| 269 |
|
TreeMap<E,Object> map = (TreeMap<E, Object>) m; |
| 270 |
< |
Comparator<? super E> cc = (Comparator<E>) set.comparator(); |
| 270 |
> |
Comparator<? super E> cc = (Comparator<? super E>) set.comparator(); |
| 271 |
|
Comparator<? super E> mc = map.comparator(); |
| 272 |
|
if (cc==mc || (cc != null && cc.equals(mc))) { |
| 273 |
|
map.addAllForTreeSet(set, PRESENT); |
| 299 |
|
* For example, suppose that <tt>s</tt> is a navigable set of |
| 300 |
|
* strings. The following idiom obtains a view containing all of |
| 301 |
|
* the strings in <tt>s</tt> from <tt>low</tt> to <tt>high</tt>, |
| 302 |
< |
* inclusive: <pre> NavigableSet sub = s.subSet(low, high+"\0"); |
| 302 |
> |
* inclusive: |
| 303 |
> |
* <pre> NavigableSet sub = s.navigableSubSet(low, high+"\0"); |
| 304 |
|
* </pre> |
| 305 |
|
* |
| 306 |
|
* A similar technique can be used to generate an <i>open range</i> (which |
| 310 |
|
* NavigableSet sub = s.navigableSubSet(low+"\0", high); |
| 311 |
|
* </pre> |
| 312 |
|
* |
| 313 |
< |
* @param fromElement low endpoint (inclusive) of the subSet. |
| 314 |
< |
* @param toElement high endpoint (exclusive) of the subSet. |
| 313 |
> |
* @param fromElement low endpoint (inclusive) of the range. |
| 314 |
> |
* @param toElement high endpoint (exclusive) of the range. |
| 315 |
|
* @return a view of the portion of this set whose elements range from |
| 316 |
|
* <tt>fromElement</tt>, inclusive, to <tt>toElement</tt>, |
| 317 |
|
* exclusive. |
| 349 |
|
* bounded by <tt>successor(highEndpoint)</tt>. For example, |
| 350 |
|
* suppose that <tt>s</tt> is a navigable set of strings. The |
| 351 |
|
* following idiom obtains a view containing all of the strings in |
| 352 |
< |
* <tt>s</tt> that are less than or equal to <tt>high</tt>: |
| 352 |
> |
* <tt>s</tt> that are less than or equal to <tt>high</tt>: |
| 353 |
|
* <pre> NavigableSet head = s.navigableHeadSet(high+"\0");</pre> |
| 354 |
|
* |
| 355 |
|
* @param toElement high endpoint (exclusive) of the headSet. |
| 356 |
|
* @return a view of the portion of this set whose elements are strictly |
| 357 |
< |
* less than toElement. |
| 357 |
> |
* less than <tt>toElement</tt>. |
| 358 |
|
* @throws ClassCastException if <tt>toElement</tt> is not compatible |
| 359 |
|
* with this set's comparator (or, if the set has no comparator, |
| 360 |
|
* if <tt>toElement</tt> does not implement <tt>Comparable</tt>). |
| 361 |
< |
* @throws IllegalArgumentException if this set is itself a subSet, |
| 362 |
< |
* headSet, or tailSet, and <tt>toElement</tt> is not within the |
| 363 |
< |
* specified range of the subSet, headSet, or tailSet. |
| 361 |
> |
* @throws IllegalArgumentException if this set is itself a subset, |
| 362 |
> |
* and <tt>toElement</tt> is not within the |
| 363 |
> |
* specified range of the subset. |
| 364 |
|
* @throws NullPointerException if <tt>toElement</tt> is <tt>null</tt> and |
| 365 |
|
* this set uses natural ordering, or its comparator does |
| 366 |
|
* not tolerate <tt>null</tt> elements. |
| 397 |
|
* @throws ClassCastException if <tt>fromElement</tt> is not compatible |
| 398 |
|
* with this set's comparator (or, if the set has no comparator, |
| 399 |
|
* if <tt>fromElement</tt> does not implement <tt>Comparable</tt>). |
| 400 |
< |
* @throws IllegalArgumentException if this set is itself a subSet, |
| 401 |
< |
* headSet, or tailSet, and <tt>fromElement</tt> is not within the |
| 402 |
< |
* specified range of the subSet, headSet, or tailSet. |
| 400 |
> |
* @throws IllegalArgumentException if this set is itself a subset, |
| 401 |
> |
* and <tt>fromElement</tt> is not within the |
| 402 |
> |
* specified range of the subset. |
| 403 |
|
* @throws NullPointerException if <tt>fromElement</tt> is <tt>null</tt> |
| 404 |
|
* and this set uses natural ordering, or its comparator does |
| 405 |
|
* not tolerate <tt>null</tt> elements. |
| 412 |
|
/** |
| 413 |
|
* Equivalent to <tt>navigableSubSet</tt> but with a return |
| 414 |
|
* type conforming to the <tt>SortedSet</tt> interface. |
| 415 |
< |
* @param fromElement low endpoint (inclusive) of the subSet. |
| 416 |
< |
* @param toElement high endpoint (exclusive) of the subSet. |
| 415 |
> |
* @param fromElement low endpoint (inclusive) of the range. |
| 416 |
> |
* @param toElement high endpoint (exclusive) of the range. |
| 417 |
|
* @return a view of the portion of this set whose elements range from |
| 418 |
|
* <tt>fromElement</tt>, inclusive, to <tt>toElement</tt>, |
| 419 |
|
* exclusive. |
| 438 |
|
* |
| 439 |
|
* @param toElement high endpoint (exclusive) of the headSet. |
| 440 |
|
* @return a view of the portion of this set whose elements are strictly |
| 441 |
< |
* less than toElement. |
| 441 |
> |
* less than <tt>toElement</tt>. |
| 442 |
|
* @throws ClassCastException if <tt>toElement</tt> is not compatible |
| 443 |
|
* with this set's comparator (or, if the set has no comparator, |
| 444 |
|
* if <tt>toElement</tt> does not implement <tt>Comparable</tt>). |
| 445 |
< |
* @throws IllegalArgumentException if this set is itself a subSet, |
| 446 |
< |
* headSet, or tailSet, and <tt>toElement</tt> is not within the |
| 447 |
< |
* specified range of the subSet, headSet, or tailSet. |
| 445 |
> |
* @throws IllegalArgumentException if this set is itself a subset, |
| 446 |
> |
* and <tt>toElement</tt> is not within the |
| 447 |
> |
* specified range of the subset. |
| 448 |
|
* @throws NullPointerException if <tt>toElement</tt> is <tt>null</tt> and |
| 449 |
|
* this set uses natural ordering, or its comparator does |
| 450 |
|
* not tolerate <tt>null</tt> elements. |
| 462 |
|
* @throws ClassCastException if <tt>fromElement</tt> is not compatible |
| 463 |
|
* with this set's comparator (or, if the set has no comparator, |
| 464 |
|
* if <tt>fromElement</tt> does not implement <tt>Comparable</tt>). |
| 465 |
< |
* @throws IllegalArgumentException if this set is itself a subSet, |
| 466 |
< |
* headSet, or tailSet, and <tt>fromElement</tt> is not within the |
| 467 |
< |
* specified range of the subSet, headSet, or tailSet. |
| 465 |
> |
* @throws IllegalArgumentException if this set is itself a subset, |
| 466 |
> |
* and <tt>fromElement</tt> is not within the |
| 467 |
> |
* specified range of the subset. |
| 468 |
|
* @throws NullPointerException if <tt>fromElement</tt> is <tt>null</tt> |
| 469 |
|
* and this set uses natural ordering, or its comparator does |
| 470 |
|
* not tolerate <tt>null</tt> elements. |
| 510 |
|
/** |
| 511 |
|
* Returns an element greater than or equal to the given element, or |
| 512 |
|
* <tt>null</tt> if there is no such element. |
| 513 |
< |
* |
| 514 |
< |
* @param o the value to match |
| 513 |
> |
* |
| 514 |
> |
* @param e the value to match |
| 515 |
|
* @return an element greater than or equal to given element, or |
| 516 |
|
* <tt>null</tt> if there is no such element. |
| 517 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 517 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 518 |
|
* currently in the set. |
| 519 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 519 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 520 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 521 |
|
* not tolerate <tt>null</tt> keys. |
| 522 |
|
*/ |
| 523 |
< |
public E ceiling(E o) { |
| 524 |
< |
return m.ceilingKey(o); |
| 523 |
> |
public E ceiling(E e) { |
| 524 |
> |
return m.ceilingKey(e); |
| 525 |
|
} |
| 526 |
|
|
| 527 |
|
/** |
| 528 |
|
* Returns an element strictly less than the given element, or |
| 529 |
|
* <tt>null</tt> if there is no such element. |
| 530 |
< |
* |
| 531 |
< |
* @param o the value to match |
| 530 |
> |
* |
| 531 |
> |
* @param e the value to match |
| 532 |
|
* @return the greatest element less than the given element, or |
| 533 |
|
* <tt>null</tt> if there is no such element. |
| 534 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 534 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 535 |
|
* currently in the set. |
| 536 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 536 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 537 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 538 |
|
* not tolerate <tt>null</tt> keys. |
| 539 |
|
*/ |
| 540 |
< |
public E lower(E o) { |
| 541 |
< |
return m.lowerKey(o); |
| 540 |
> |
public E lower(E e) { |
| 541 |
> |
return m.lowerKey(e); |
| 542 |
|
} |
| 543 |
|
|
| 544 |
|
/** |
| 545 |
|
* Returns an element less than or equal to the given element, or |
| 546 |
|
* <tt>null</tt> if there is no such element. |
| 547 |
< |
* |
| 548 |
< |
* @param o the value to match |
| 547 |
> |
* |
| 548 |
> |
* @param e the value to match |
| 549 |
|
* @return the greatest element less than or equal to given |
| 550 |
|
* element, or <tt>null</tt> if there is no such element. |
| 551 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 551 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 552 |
|
* currently in the set. |
| 553 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 553 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 554 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 555 |
|
* not tolerate <tt>null</tt> keys. |
| 556 |
|
*/ |
| 557 |
< |
public E floor(E o) { |
| 558 |
< |
return m.floorKey(o); |
| 557 |
> |
public E floor(E e) { |
| 558 |
> |
return m.floorKey(e); |
| 559 |
|
} |
| 560 |
|
|
| 561 |
|
/** |
| 562 |
|
* Returns an element strictly greater than the given element, or |
| 563 |
|
* <tt>null</tt> if there is no such element. |
| 564 |
< |
* |
| 565 |
< |
* @param o the value to match |
| 564 |
> |
* |
| 565 |
> |
* @param e the value to match |
| 566 |
|
* @return the least element greater than the given element, or |
| 567 |
|
* <tt>null</tt> if there is no such element. |
| 568 |
< |
* @throws ClassCastException if o cannot be compared with the elements |
| 568 |
> |
* @throws ClassCastException if e cannot be compared with the elements |
| 569 |
|
* currently in the set. |
| 570 |
< |
* @throws NullPointerException if o is <tt>null</tt> and this map |
| 570 |
> |
* @throws NullPointerException if e is <tt>null</tt> and this map |
| 571 |
|
* uses natural ordering and is non-empty, or its comparator does |
| 572 |
|
* not tolerate <tt>null</tt> keys. |
| 573 |
|
*/ |
| 574 |
< |
public E higher(E o) { |
| 575 |
< |
return m.higherKey(o); |
| 574 |
> |
public E higher(E e) { |
| 575 |
> |
return m.higherKey(e); |
| 576 |
|
} |
| 577 |
|
|
| 578 |
|
/** |
| 652 |
|
s.defaultReadObject(); |
| 653 |
|
|
| 654 |
|
// Read in Comparator |
| 655 |
< |
Comparator<E> c = (Comparator<E>) s.readObject(); |
| 655 |
> |
Comparator<? super E> c = (Comparator<? super E>) s.readObject(); |
| 656 |
|
|
| 657 |
|
// Create backing TreeMap |
| 658 |
|
TreeMap<E,Object> tm; |
