28 |
|
* subrange traversals in either direction using <tt>navigableSubMap</tt>. |
29 |
|
* Methods <tt>navigableSubMap</tt>, <tt>navigableHeadMap</tt>, and |
30 |
|
* <tt>navigableTailMap</tt> differ from the similarly named |
31 |
< |
* <tt>SortedMap</tt> methods only in that the returned maps |
32 |
< |
* are guaranteed to obey the <tt>NavigableMap</tt> interface. |
31 |
> |
* <tt>SortedMap</tt> methods only in their declared return types. |
32 |
> |
* Submaps of any <tt>NavigableMap<tt> must implement the |
33 |
> |
* <tt>NavigableMap</tt> interface. |
34 |
|
* |
35 |
|
* <p>This interface additionally defines methods <tt>firstEntry</tt>, |
36 |
|
* <tt>pollFirstEntry</tt>, <tt>lastEntry</tt>, and |
44 |
|
* that it is possible to change mappings in the associated map using |
45 |
|
* method <tt>put</tt>. |
46 |
|
* |
47 |
+ |
* <p>This interface is a member of the |
48 |
+ |
* <a href="{@docRoot}/../guide/collections/index.html"> |
49 |
+ |
* Java Collections Framework</a>. |
50 |
+ |
* |
51 |
|
* @author Doug Lea |
52 |
|
* @param <K> the type of keys maintained by this map |
53 |
|
* @param <V> the type of mapped values |
54 |
+ |
* @since 1.6 |
55 |
|
*/ |
56 |
|
public interface NavigableMap<K,V> extends SortedMap<K,V> { |
57 |
|
/** |
58 |
< |
* Returns a key-value mapping associated with the least key |
59 |
< |
* greater than or equal to the given key, or <tt>null</tt> if there is |
60 |
< |
* no such entry. |
58 |
> |
* Returns a key-value mapping associated with the greatest key |
59 |
> |
* strictly less than the given key, or <tt>null</tt> if there is |
60 |
> |
* no such key. |
61 |
|
* |
62 |
< |
* @param key the key. |
63 |
< |
* @return an Entry associated with ceiling of given key, or <tt>null</tt> |
64 |
< |
* if there is no such Entry. |
65 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
66 |
< |
* currently in the map. |
67 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
68 |
< |
* does not support <tt>null</tt> keys. |
62 |
> |
* @param key the key |
63 |
> |
* @return an entry with the greatest key less than <tt>key</tt>, |
64 |
> |
* or <tt>null</tt> if there is no such key |
65 |
> |
* @throws ClassCastException if the specified key cannot be compared |
66 |
> |
* with the keys currently in the map |
67 |
> |
* @throws NullPointerException if the specified key is null |
68 |
> |
* and this map does not permit null keys |
69 |
|
*/ |
70 |
< |
Map.Entry<K,V> ceilingEntry(K key); |
70 |
> |
Map.Entry<K,V> lowerEntry(K key); |
71 |
|
|
72 |
|
/** |
73 |
< |
* Returns least key greater than or equal to the given key, or |
73 |
> |
* Returns the greatest key strictly less than the given key, or |
74 |
|
* <tt>null</tt> if there is no such key. |
75 |
|
* |
76 |
< |
* @param key the key. |
77 |
< |
* @return the ceiling key, or <tt>null</tt> |
78 |
< |
* if there is no such key. |
79 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
80 |
< |
* currently in the map. |
81 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
82 |
< |
* does not support <tt>null</tt> keys. |
76 |
> |
* @param key the key |
77 |
> |
* @return the greatest key less than <tt>key</tt>, |
78 |
> |
* or <tt>null</tt> if there is no such key |
79 |
> |
* @throws ClassCastException if the specified key cannot be compared |
80 |
> |
* with the keys currently in the map |
81 |
> |
* @throws NullPointerException if the specified key is null |
82 |
> |
* and this map does not permit null keys |
83 |
|
*/ |
84 |
< |
K ceilingKey(K key); |
84 |
> |
K lowerKey(K key); |
85 |
|
|
86 |
|
/** |
87 |
< |
* Returns a key-value mapping associated with the greatest |
88 |
< |
* key strictly less than the given key, or <tt>null</tt> if there is no |
89 |
< |
* such entry. |
87 |
> |
* Returns a key-value mapping associated with the greatest key |
88 |
> |
* less than or equal to the given key, or <tt>null</tt> if there |
89 |
> |
* is no such key. |
90 |
|
* |
91 |
< |
* @param key the key. |
92 |
< |
* @return an Entry with greatest key less than the given |
93 |
< |
* key, or <tt>null</tt> if there is no such Entry. |
94 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
95 |
< |
* currently in the map. |
96 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
97 |
< |
* does not support <tt>null</tt> keys. |
91 |
> |
* @param key the key |
92 |
> |
* @return an entry with the greatest key less than or equal to |
93 |
> |
* <tt>key</tt>, or <tt>null</tt> if there is no such key |
94 |
> |
* @throws ClassCastException if the specified key cannot be compared |
95 |
> |
* with the keys currently in the map |
96 |
> |
* @throws NullPointerException if the specified key is null |
97 |
> |
* and this map does not permit null keys |
98 |
|
*/ |
99 |
< |
Map.Entry<K,V> lowerEntry(K key); |
99 |
> |
Map.Entry<K,V> floorEntry(K key); |
100 |
|
|
101 |
|
/** |
102 |
< |
* Returns the greatest key strictly less than the given key, or |
103 |
< |
* <tt>null</tt> if there is no such key. |
102 |
> |
* Returns the greatest key less than or equal to the given key, |
103 |
> |
* or <tt>null</tt> if there is no such key. |
104 |
|
* |
105 |
< |
* @param key the key. |
106 |
< |
* @return the greatest key less than the given |
107 |
< |
* key, or <tt>null</tt> if there is no such key. |
108 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
109 |
< |
* currently in the map. |
110 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
111 |
< |
* does not support <tt>null</tt> keys. |
105 |
> |
* @param key the key |
106 |
> |
* @return the greatest key less than or equal to <tt>key</tt>, |
107 |
> |
* or <tt>null</tt> if there is no such key |
108 |
> |
* @throws ClassCastException if the specified key cannot be compared |
109 |
> |
* with the keys currently in the map |
110 |
> |
* @throws NullPointerException if the specified key is null |
111 |
> |
* and this map does not permit null keys |
112 |
|
*/ |
113 |
< |
K lowerKey(K key); |
113 |
> |
K floorKey(K key); |
114 |
|
|
115 |
|
/** |
116 |
< |
* Returns a key-value mapping associated with the greatest key |
117 |
< |
* less than or equal to the given key, or <tt>null</tt> if there |
118 |
< |
* is no such entry. |
116 |
> |
* Returns a key-value mapping associated with the least key |
117 |
> |
* greater than or equal to the given key, or <tt>null</tt> if |
118 |
> |
* there is no such key. |
119 |
|
* |
120 |
< |
* @param key the key. |
121 |
< |
* @return an Entry associated with floor of given key, or <tt>null</tt> |
122 |
< |
* if there is no such Entry. |
123 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
124 |
< |
* currently in the map. |
125 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
126 |
< |
* does not support <tt>null</tt> keys. |
120 |
> |
* @param key the key |
121 |
> |
* @return an entry with the least key greater than or equal to |
122 |
> |
* <tt>key</tt>, or <tt>null</tt> if there is no such key |
123 |
> |
* @throws ClassCastException if the specified key cannot be compared |
124 |
> |
* with the keys currently in the map |
125 |
> |
* @throws NullPointerException if the specified key is null |
126 |
> |
* and this map does not permit null keys |
127 |
|
*/ |
128 |
< |
Map.Entry<K,V> floorEntry(K key); |
128 |
> |
Map.Entry<K,V> ceilingEntry(K key); |
129 |
|
|
130 |
|
/** |
131 |
< |
* Returns the greatest key |
132 |
< |
* less than or equal to the given key, or <tt>null</tt> if there |
127 |
< |
* is no such key. |
131 |
> |
* Returns the least key greater than or equal to the given key, |
132 |
> |
* or <tt>null</tt> if there is no such key. |
133 |
|
* |
134 |
< |
* @param key the key. |
135 |
< |
* @return the floor of given key, or <tt>null</tt> if there is no |
136 |
< |
* such key. |
137 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
138 |
< |
* currently in the map. |
139 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
140 |
< |
* does not support <tt>null</tt> keys. |
134 |
> |
* @param key the key |
135 |
> |
* @return the least key greater than or equal to <tt>key</tt>, |
136 |
> |
* or <tt>null</tt> if there is no such key |
137 |
> |
* @throws ClassCastException if the specified key cannot be compared |
138 |
> |
* with the keys currently in the map |
139 |
> |
* @throws NullPointerException if the specified key is null |
140 |
> |
* and this map does not permit null keys |
141 |
|
*/ |
142 |
< |
K floorKey(K key); |
142 |
> |
K ceilingKey(K key); |
143 |
|
|
144 |
|
/** |
145 |
|
* Returns a key-value mapping associated with the least key |
146 |
|
* strictly greater than the given key, or <tt>null</tt> if there |
147 |
< |
* is no such entry. |
147 |
> |
* is no such key. |
148 |
|
* |
149 |
< |
* @param key the key. |
150 |
< |
* @return an Entry with least key greater than the given key, or |
151 |
< |
* <tt>null</tt> if there is no such Entry. |
152 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
153 |
< |
* currently in the map. |
154 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
155 |
< |
* does not support <tt>null</tt> keys. |
149 |
> |
* @param key the key |
150 |
> |
* @return an entry with the least key greater than <tt>key</tt>, |
151 |
> |
* or <tt>null</tt> if there is no such key |
152 |
> |
* @throws ClassCastException if the specified key cannot be compared |
153 |
> |
* with the keys currently in the map |
154 |
> |
* @throws NullPointerException if the specified key is null |
155 |
> |
* and this map does not permit null keys |
156 |
|
*/ |
157 |
|
Map.Entry<K,V> higherEntry(K key); |
158 |
|
|
160 |
|
* Returns the least key strictly greater than the given key, or |
161 |
|
* <tt>null</tt> if there is no such key. |
162 |
|
* |
163 |
< |
* @param key the key. |
164 |
< |
* @return the least key greater than the given key, or |
165 |
< |
* <tt>null</tt> if there is no such key. |
166 |
< |
* @throws ClassCastException if key cannot be compared with the keys |
167 |
< |
* currently in the map. |
168 |
< |
* @throws NullPointerException if key is <tt>null</tt> and this map |
169 |
< |
* does not support <tt>null</tt> keys. |
163 |
> |
* @param key the key |
164 |
> |
* @return the least key greater than <tt>key</tt>, |
165 |
> |
* or <tt>null</tt> if there is no such key |
166 |
> |
* @throws ClassCastException if the specified key cannot be compared |
167 |
> |
* with the keys currently in the map |
168 |
> |
* @throws NullPointerException if the specified key is null |
169 |
> |
* and this map does not permit null keys |
170 |
|
*/ |
171 |
|
K higherKey(K key); |
172 |
|
|
174 |
|
* Returns a key-value mapping associated with the least |
175 |
|
* key in this map, or <tt>null</tt> if the map is empty. |
176 |
|
* |
177 |
< |
* @return an Entry with least key, or <tt>null</tt> |
178 |
< |
* if the map is empty. |
177 |
> |
* @return an entry with the least key, |
178 |
> |
* or <tt>null</tt> if this map is empty |
179 |
|
*/ |
180 |
|
Map.Entry<K,V> firstEntry(); |
181 |
|
|
183 |
|
* Returns a key-value mapping associated with the greatest |
184 |
|
* key in this map, or <tt>null</tt> if the map is empty. |
185 |
|
* |
186 |
< |
* @return an Entry with greatest key, or <tt>null</tt> |
187 |
< |
* if the map is empty. |
186 |
> |
* @return an entry with the greatest key, |
187 |
> |
* or <tt>null</tt> if this map is empty |
188 |
|
*/ |
189 |
|
Map.Entry<K,V> lastEntry(); |
190 |
|
|
192 |
|
* Removes and returns a key-value mapping associated with |
193 |
|
* the least key in this map, or <tt>null</tt> if the map is empty. |
194 |
|
* |
195 |
< |
* @return the removed first entry of this map, or <tt>null</tt> |
196 |
< |
* if the map is empty. |
195 |
> |
* @return the removed first entry of this map, |
196 |
> |
* or <tt>null</tt> if this map is empty |
197 |
|
*/ |
198 |
|
Map.Entry<K,V> pollFirstEntry(); |
199 |
|
|
201 |
|
* Removes and returns a key-value mapping associated with |
202 |
|
* the greatest key in this map, or <tt>null</tt> if the map is empty. |
203 |
|
* |
204 |
< |
* @return the removed last entry of this map, or <tt>null</tt> |
205 |
< |
* if the map is empty. |
204 |
> |
* @return the removed last entry of this map, |
205 |
> |
* or <tt>null</tt> if this map is empty |
206 |
|
*/ |
207 |
|
Map.Entry<K,V> pollLastEntry(); |
208 |
|
|
209 |
|
/** |
210 |
< |
* Returns a set view of the keys contained in this map, in |
211 |
< |
* descending key order. The set is backed by the map, so changes |
212 |
< |
* to the map are reflected in the set, and vice-versa. If the |
213 |
< |
* map is modified while an iteration over the set is in progress |
214 |
< |
* (except through the iterator's own <tt>remove</tt> operation), |
215 |
< |
* the results of the iteration are undefined. The set supports |
216 |
< |
* element removal, which removes the corresponding mapping from |
217 |
< |
* the map, via the <tt>Iterator.remove</tt>, <tt>Set.remove</tt>, |
218 |
< |
* <tt>removeAll</tt> <tt>retainAll</tt>, and <tt>clear</tt> |
219 |
< |
* operations. It does not support the add or <tt>addAll</tt> |
210 |
> |
* Returns a {@link Set} view of the keys contained in this map. |
211 |
> |
* The set's iterator returns the keys in descending order. |
212 |
> |
* The set is backed by the map, so changes to the map are |
213 |
> |
* reflected in the set, and vice-versa. If the map is modified |
214 |
> |
* while an iteration over the set is in progress (except through |
215 |
> |
* the iterator's own <tt>remove</tt> operation), the results of |
216 |
> |
* the iteration are undefined. The set supports element removal, |
217 |
> |
* which removes the corresponding mapping from the map, via the |
218 |
> |
* <tt>Iterator.remove</tt>, <tt>Set.remove</tt>, |
219 |
> |
* <tt>removeAll</tt>, <tt>retainAll</tt>, and <tt>clear</tt> |
220 |
> |
* operations. It does not support the <tt>add</tt> or <tt>addAll</tt> |
221 |
|
* operations. |
222 |
|
* |
223 |
< |
* @return a set view of the keys contained in this map. |
223 |
> |
* @return a set view of the keys contained in this map, sorted in |
224 |
> |
* descending order |
225 |
|
*/ |
226 |
|
Set<K> descendingKeySet(); |
227 |
|
|
228 |
|
/** |
229 |
< |
* Returns a set view of the mappings contained in this map, in |
230 |
< |
* descending key order. Each element in the returned set is a |
231 |
< |
* <tt>Map.Entry</tt>. The set is backed by the map, so changes to |
232 |
< |
* the map are reflected in the set, and vice-versa. If the map |
233 |
< |
* is modified while an iteration over the set is in progress |
234 |
< |
* (except through the iterator's own <tt>remove</tt> operation, |
235 |
< |
* or through the <tt>setValue</tt> operation on a map entry |
236 |
< |
* returned by the iterator) the results of the iteration are |
237 |
< |
* undefined. The set supports element removal, which removes the |
238 |
< |
* corresponding mapping from the map, via the |
239 |
< |
* <tt>Iterator.remove</tt>, <tt>Set.remove</tt>, |
240 |
< |
* <tt>removeAll</tt>, <tt>retainAll</tt> and <tt>clear</tt> |
241 |
< |
* operations. It does not support the <tt>add</tt> or |
235 |
< |
* <tt>addAll</tt> operations. |
229 |
> |
* Returns a {@link Set} view of the mappings contained in this map. |
230 |
> |
* The set's iterator returns the entries in descending key order. |
231 |
> |
* The set is backed by the map, so changes to the map are |
232 |
> |
* reflected in the set, and vice-versa. If the map is modified |
233 |
> |
* while an iteration over the set is in progress (except through |
234 |
> |
* the iterator's own <tt>remove</tt> operation, or through the |
235 |
> |
* <tt>setValue</tt> operation on a map entry returned by the |
236 |
> |
* iterator) the results of the iteration are undefined. The set |
237 |
> |
* supports element removal, which removes the corresponding |
238 |
> |
* mapping from the map, via the <tt>Iterator.remove</tt>, |
239 |
> |
* <tt>Set.remove</tt>, <tt>removeAll</tt>, <tt>retainAll</tt> and |
240 |
> |
* <tt>clear</tt> operations. It does not support the |
241 |
> |
* <tt>add</tt> or <tt>addAll</tt> operations. |
242 |
|
* |
243 |
< |
* @return a set view of the mappings contained in this map. |
243 |
> |
* @return a set view of the mappings contained in this map, |
244 |
> |
* sorted in descending key order |
245 |
|
*/ |
246 |
|
Set<Map.Entry<K, V>> descendingEntrySet(); |
247 |
|
|
248 |
|
/** |
249 |
|
* Returns a view of the portion of this map whose keys range from |
250 |
|
* <tt>fromKey</tt>, inclusive, to <tt>toKey</tt>, exclusive. (If |
251 |
< |
* <tt>fromKey</tt> and <tt>toKey</tt> are equal, the returned |
252 |
< |
* navigable map is empty.) The returned navigable map is backed |
253 |
< |
* by this map, so changes in the returned navigable map are |
254 |
< |
* reflected in this map, and vice-versa. |
251 |
> |
* <tt>fromKey</tt> and <tt>toKey</tt> are equal, the returned map |
252 |
> |
* is empty.) The returned map is backed by this map, so changes |
253 |
> |
* in the returned map are reflected in this map, and vice-versa. |
254 |
> |
* The returned map supports all optional map operations that this |
255 |
> |
* map supports. |
256 |
|
* |
257 |
< |
* @param fromKey low endpoint (inclusive) of the subMap. |
258 |
< |
* @param toKey high endpoint (exclusive) of the subMap. |
257 |
> |
* <p>The returned map will throw an <tt>IllegalArgumentException</tt> |
258 |
> |
* on an attempt to insert a key outside its range. |
259 |
|
* |
260 |
+ |
* @param fromKey low endpoint (inclusive) of the keys in the returned map |
261 |
+ |
* @param toKey high endpoint (exclusive) of the keys in the returned map |
262 |
|
* @return a view of the portion of this map whose keys range from |
263 |
< |
* <tt>fromKey</tt>, inclusive, to <tt>toKey</tt>, exclusive. |
264 |
< |
* |
265 |
< |
* @throws ClassCastException if <tt>fromKey</tt> and |
266 |
< |
* <tt>toKey</tt> cannot be compared to one another using this |
267 |
< |
* map's comparator (or, if the map has no comparator, using |
268 |
< |
* natural ordering). |
269 |
< |
* @throws IllegalArgumentException if <tt>fromKey</tt> is greater |
270 |
< |
* than <tt>toKey</tt>. |
271 |
< |
* @throws NullPointerException if <tt>fromKey</tt> or |
272 |
< |
* <tt>toKey</tt> is <tt>null</tt> and this map does not support |
273 |
< |
* <tt>null</tt> keys. |
263 |
> |
* <tt>fromKey</tt>, inclusive, to <tt>toKey</tt>, exclusive |
264 |
> |
* @throws ClassCastException if <tt>fromKey</tt> and <tt>toKey</tt> |
265 |
> |
* cannot be compared to one another using this map's comparator |
266 |
> |
* (or, if the map has no comparator, using natural ordering). |
267 |
> |
* Implementations may, but are not required to, throw this |
268 |
> |
* exception if <tt>fromKey</tt> or <tt>toKey</tt> |
269 |
> |
* cannot be compared to keys currently in the map. |
270 |
> |
* @throws NullPointerException if <tt>fromKey</tt> or <tt>toKey</tt> |
271 |
> |
* is null and this map does not permit null keys |
272 |
> |
* @throws IllegalArgumentException if <tt>fromKey</tt> is greater than |
273 |
> |
* <tt>toKey</tt>; or if this map itself has a restricted |
274 |
> |
* range, and <tt>fromKey</tt> or <tt>toKey</tt> lies |
275 |
> |
* outside the bounds of the range |
276 |
|
*/ |
277 |
|
NavigableMap<K,V> navigableSubMap(K fromKey, K toKey); |
278 |
|
|
279 |
|
/** |
280 |
< |
* Returns a view of the portion of this map whose keys are strictly less |
281 |
< |
* than <tt>toKey</tt>. The returned navigable map is backed by this map, so |
282 |
< |
* changes in the returned navigable map are reflected in this map, and |
283 |
< |
* vice-versa. |
284 |
< |
* @param toKey high endpoint (exclusive) of the headMap. |
273 |
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* @return a view of the portion of this map whose keys are strictly |
274 |
< |
* less than <tt>toKey</tt>. |
280 |
> |
* Returns a view of the portion of this map whose keys are |
281 |
> |
* strictly less than <tt>toKey</tt>. The returned map is backed |
282 |
> |
* by this map, so changes in the returned map are reflected in |
283 |
> |
* this map, and vice-versa. The returned map supports all |
284 |
> |
* optional map operations that this map supports. |
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* |
286 |
+ |
* <p>The returned map will throw an <tt>IllegalArgumentException</tt> |
287 |
+ |
* on an attempt to insert a key outside its range. |
288 |
+ |
* |
289 |
+ |
* @param toKey high endpoint (exclusive) of the keys in the returned map |
290 |
+ |
* @return a view of the portion of this map whose keys are strictly |
291 |
+ |
* less than <tt>toKey</tt> |
292 |
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* @throws ClassCastException if <tt>toKey</tt> is not compatible |
293 |
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* with this map's comparator (or, if the map has no comparator, |
294 |
< |
* if <tt>toKey</tt> does not implement <tt>Comparable</tt>). |
295 |
< |
* @throws NullPointerException if <tt>toKey</tt> is <tt>null</tt> |
296 |
< |
* and this map does not support <tt>null</tt> keys. |
294 |
> |
* if <tt>toKey</tt> does not implement {@link Comparable}). |
295 |
> |
* Implementations may, but are not required to, throw this |
296 |
> |
* exception if <tt>toKey</tt> cannot be compared to keys |
297 |
> |
* currently in the map. |
298 |
> |
* @throws NullPointerException if <tt>toKey</tt> is null |
299 |
> |
* and this map does not permit null keys |
300 |
> |
* @throws IllegalArgumentException if this map itself has a |
301 |
> |
* restricted range, and <tt>toKey</tt> lies outside the |
302 |
> |
* bounds of the range |
303 |
|
*/ |
304 |
|
NavigableMap<K,V> navigableHeadMap(K toKey); |
305 |
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|
306 |
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/** |
307 |
|
* Returns a view of the portion of this map whose keys are |
308 |
< |
* greater than or equal to <tt>fromKey</tt>. The returned navigable |
309 |
< |
* map is backed by this map, so changes in the returned navigable |
310 |
< |
* map are reflected in this map, and vice-versa. |
311 |
< |
* @param fromKey low endpoint (inclusive) of the tailMap. |
308 |
> |
* greater than or equal to <tt>fromKey</tt>. The returned map is |
309 |
> |
* backed by this map, so changes in the returned map are |
310 |
> |
* reflected in this map, and vice-versa. The returned map |
311 |
> |
* supports all optional map operations that this map supports. |
312 |
> |
* |
313 |
> |
* <p>The returned map will throw an <tt>IllegalArgumentException</tt> |
314 |
> |
* on an attempt to insert a key outside its range. |
315 |
> |
* |
316 |
> |
* @param fromKey low endpoint (inclusive) of the keys in the returned map |
317 |
|
* @return a view of the portion of this map whose keys are greater |
318 |
< |
* than or equal to <tt>fromKey</tt>. |
318 |
> |
* than or equal to <tt>fromKey</tt> |
319 |
|
* @throws ClassCastException if <tt>fromKey</tt> is not compatible |
320 |
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* with this map's comparator (or, if the map has no comparator, |
321 |
< |
* if <tt>fromKey</tt> does not implement <tt>Comparable</tt>). |
322 |
< |
* @throws NullPointerException if <tt>fromKey</tt> is <tt>null</tt> |
323 |
< |
* and this map does not support <tt>null</tt> keys. |
321 |
> |
* if <tt>fromKey</tt> does not implement {@link Comparable}). |
322 |
> |
* Implementations may, but are not required to, throw this |
323 |
> |
* exception if <tt>fromKey</tt> cannot be compared to keys |
324 |
> |
* currently in the map. |
325 |
> |
* @throws NullPointerException if <tt>fromKey</tt> is null |
326 |
> |
* and this map does not permit null keys |
327 |
> |
* @throws IllegalArgumentException if this map itself has a |
328 |
> |
* restricted range, and <tt>fromKey</tt> lies outside the |
329 |
> |
* bounds of the range |
330 |
|
*/ |
331 |
< |
NavigableMap<K,V> navigableTailMap(K fromKey); |
331 |
> |
NavigableMap<K,V> navigableTailMap(K fromKey); |
332 |
|
} |