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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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|
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package jsr166x; |
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|
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import java.util.*; |
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import java.util.concurrent.*; |
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|
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/** |
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* A {@link ConcurrentMap} supporting {@link NavigableMap} operations. |
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* |
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* @author Doug Lea |
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* @param <K> the type of keys maintained by this map |
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* @param <V> the type of mapped values |
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*/ |
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public interface ConcurrentNavigableMap<K,V> extends ConcurrentMap<K,V>, NavigableMap<K,V> { |
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/** |
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* Returns a view of the portion of this map whose keys range from |
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* {@code fromKey}, inclusive, to {@code toKey}, exclusive. (If |
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* {@code fromKey} and {@code toKey} are equal, the returned sorted map |
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* is empty.) The returned sorted map is backed by this map, so changes |
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* in the returned sorted map are reflected in this map, and vice-versa. |
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* |
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* @param fromKey low endpoint (inclusive) of the subMap |
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* @param toKey high endpoint (exclusive) of the subMap |
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* |
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* @return a view of the portion of this map whose keys range from |
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* {@code fromKey}, inclusive, to {@code toKey}, exclusive |
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* |
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* @throws ClassCastException if {@code fromKey} and |
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* {@code toKey} cannot be compared to one another using this |
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* map's comparator (or, if the map has no comparator, using |
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* natural ordering) |
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* @throws IllegalArgumentException if {@code fromKey} is greater |
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* than {@code toKey} |
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* @throws NullPointerException if {@code fromKey} or |
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* {@code toKey} is {@code null} and this map does not support |
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* {@code null} keys |
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*/ |
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public ConcurrentNavigableMap<K,V> subMap(K fromKey, K toKey); |
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|
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/** |
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* Returns a view of the portion of this map whose keys are strictly less |
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* than {@code toKey}. The returned sorted map is backed by this map, so |
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* changes in the returned sorted map are reflected in this map, and |
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* vice-versa. |
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* @param toKey high endpoint (exclusive) of the headMap |
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* @return a view of the portion of this map whose keys are strictly |
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* less than {@code toKey} |
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* |
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* @throws ClassCastException if {@code toKey} is not compatible |
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* with this map's comparator (or, if the map has no comparator, |
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* if {@code toKey} does not implement {@code Comparable}) |
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* @throws NullPointerException if {@code toKey} is {@code null} |
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* and this map does not support {@code null} keys |
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*/ |
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public ConcurrentNavigableMap<K,V> headMap(K toKey); |
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|
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/** |
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* Returns a view of the portion of this map whose keys are |
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* greater than or equal to {@code fromKey}. The returned sorted |
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* map is backed by this map, so changes in the returned sorted |
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* map are reflected in this map, and vice-versa. |
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* @param fromKey low endpoint (inclusive) of the tailMap |
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* @return a view of the portion of this map whose keys are greater |
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* than or equal to {@code fromKey} |
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* @throws ClassCastException if {@code fromKey} is not compatible |
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* with this map's comparator (or, if the map has no comparator, |
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* if {@code fromKey} does not implement {@code Comparable}) |
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* @throws NullPointerException if {@code fromKey} is {@code null} |
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* and this map does not support {@code null} keys |
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*/ |
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public ConcurrentNavigableMap<K,V> tailMap(K fromKey); |
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} |
