| 35 |
|
* {@code null} elements. (Note that sorted sets of {@link |
| 36 |
|
* Comparable} elements intrinsically do not permit {@code null}.) |
| 37 |
|
* |
| 38 |
+ |
* <p>Methods |
| 39 |
+ |
* {@link #subSet(Object, Object) subSet(E, E)}, |
| 40 |
+ |
* {@link #headSet(Object) headSet(E)}, and |
| 41 |
+ |
* {@link #tailSet(Object) tailSet(E)} |
| 42 |
+ |
* are specified to return {@code SortedSet} to allow existing |
| 43 |
+ |
* implementations of {@code SortedSet} to be compatibly retrofitted to |
| 44 |
+ |
* implement {@code NavigableSet}, but extensions and implementations |
| 45 |
+ |
* of this interface are encouraged to override these methods to return |
| 46 |
+ |
* {@code NavigableSet}. |
| 47 |
+ |
* |
| 48 |
|
* <p>This interface is a member of the |
| 49 |
< |
* <a href="{@docRoot}/../guide/collections/index.html"> |
| 49 |
> |
* <a href="{@docRoot}/../technotes/guides/collections/index.html"> |
| 50 |
|
* Java Collections Framework</a>. |
| 51 |
|
* |
| 52 |
|
* @author Doug Lea |
| 135 |
|
Iterator<E> iterator(); |
| 136 |
|
|
| 137 |
|
/** |
| 138 |
< |
* Returns a {@link NavigableSet} view of the elements contained in this |
| 139 |
< |
* set in descending order. The descending set is backed by this set, so |
| 140 |
< |
* changes to the set are reflected in the descending set, and vice-versa. |
| 141 |
< |
* If either set is modified while an iteration over the other set is in |
| 142 |
< |
* progress (except through the iterator's own {@code remove} operation), |
| 143 |
< |
* the results of the iteration are undefined. |
| 138 |
> |
* Returns a reverse order view of the elements contained in this set. |
| 139 |
> |
* The descending set is backed by this set, so changes to the set are |
| 140 |
> |
* reflected in the descending set, and vice-versa. If either set is |
| 141 |
> |
* modified while an iteration over either set is in progress (except |
| 142 |
> |
* through the iterator's own {@code remove} operation), the results of |
| 143 |
> |
* the iteration are undefined. |
| 144 |
> |
* |
| 145 |
> |
* <p>The returned set has an ordering equivalent to |
| 146 |
> |
* <tt>{@link Collections#reverseOrder(Comparator) Collections.reverseOrder}(comparator())</tt>. |
| 147 |
> |
* The expression {@code s.descendingSet().descendingSet()} returns a |
| 148 |
> |
* view of {@code s} essentially equivalent to {@code s}. |
| 149 |
|
* |
| 150 |
< |
* @return a navigable set view of the elements contained in this set, |
| 136 |
< |
* sorted in descending order |
| 150 |
> |
* @return a reverse order view of this set |
| 151 |
|
*/ |
| 152 |
|
NavigableSet<E> descendingSet(); |
| 153 |
|
|
| 256 |
|
NavigableSet<E> tailSet(E fromElement, boolean inclusive); |
| 257 |
|
|
| 258 |
|
/** |
| 259 |
< |
* Equivalent to {@code subSet(fromElement, true, toElement, false)} |
| 246 |
< |
* but with a return type conforming to the {@code SortedSet} interface. |
| 259 |
> |
* {@inheritDoc} |
| 260 |
|
* |
| 261 |
< |
* <p>{@inheritDoc} |
| 261 |
> |
* <p>Equivalent to {@code subSet(fromElement, true, toElement, false)}. |
| 262 |
|
* |
| 263 |
|
* @throws ClassCastException {@inheritDoc} |
| 264 |
|
* @throws NullPointerException {@inheritDoc} |
| 267 |
|
SortedSet<E> subSet(E fromElement, E toElement); |
| 268 |
|
|
| 269 |
|
/** |
| 270 |
< |
* Equivalent to {@code headSet(toElement, false)} |
| 258 |
< |
* but with a return type conforming to the {@code SortedSet} interface. |
| 270 |
> |
* {@inheritDoc} |
| 271 |
|
* |
| 272 |
< |
* <p>{@inheritDoc} |
| 272 |
> |
* <p>Equivalent to {@code headSet(toElement, false)}. |
| 273 |
|
* |
| 274 |
|
* @throws ClassCastException {@inheritDoc} |
| 275 |
|
* @throws NullPointerException {@inheritDoc} |
| 276 |
|
* @throws IllegalArgumentException {@inheritDoc} |
| 277 |
< |
*/ |
| 277 |
> |
na */ |
| 278 |
|
SortedSet<E> headSet(E toElement); |
| 279 |
|
|
| 280 |
|
/** |
| 281 |
< |
* Equivalent to {@code tailSet(fromElement, true)} |
| 270 |
< |
* but with a return type conforming to the {@code SortedSet} interface. |
| 281 |
> |
* {@inheritDoc} |
| 282 |
|
* |
| 283 |
< |
* <p>{@inheritDoc} |
| 283 |
> |
* <p>Equivalent to {@code tailSet(fromElement, true)}. |
| 284 |
|
* |
| 285 |
|
* @throws ClassCastException {@inheritDoc} |
| 286 |
|
* @throws NullPointerException {@inheritDoc} |
