org.jboss.util.collection

Interface ConcurrentNavigableMap<K,V>

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

All Superinterfaces:

ConcurrentMap<K,V>, Map<K,V>, NavigableMap<K,V>, SortedMap<K,V>

All Known Implementing Classes:

ConcurrentSkipListMap

public interface ConcurrentNavigableMap<K,V>
extends ConcurrentMap<K,V>, NavigableMap<K,V>

A ConcurrentMap supporting NavigableMap operations.

Author:

Doug Lea

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Method Summary

Methods

Modifier and Type	Method and Description
ConcurrentNavigableMap<K,V>	headMap(K toKey) Returns a view of the portion of this map whose keys are strictly less than toKey.
ConcurrentNavigableMap<K,V>	subMap(K fromKey, K toKey) Returns a view of the portion of this map whose keys range from fromKey, inclusive, to toKey, exclusive.
ConcurrentNavigableMap<K,V>	tailMap(K fromKey) Returns a view of the portion of this map whose keys are greater than or equal to fromKey.

Methods inherited from interface java.util.concurrent.ConcurrentMap

putIfAbsent, remove, replace, replace

Methods inherited from interface org.jboss.util.collection.NavigableMap

ceilingEntry, ceilingKey, descendingEntrySet, descendingKeySet, firstEntry, floorEntry, floorKey, higherEntry, higherKey, lastEntry, lowerEntry, lowerKey, pollFirstEntry, pollLastEntry

Methods inherited from interface java.util.SortedMap

comparator, entrySet, firstKey, keySet, lastKey, values

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, equals, get, hashCode, isEmpty, put, putAll, remove, size

Method Detail

subMap

ConcurrentNavigableMap<K,V> subMap(K fromKey,
                                 K toKey)

Returns a view of the portion of this map whose keys range from fromKey, inclusive, to toKey, exclusive. (If fromKey and toKey are equal, the returned sorted map is empty.) The returned sorted map is backed by this map, so changes in the returned sorted map are reflected in this map, and vice-versa.

Specified by:

subMap in interface NavigableMap<K,V>

Specified by:

subMap in interface SortedMap<K,V>

Parameters:

fromKey - low endpoint (inclusive) of the subMap.

toKey - high endpoint (exclusive) of the subMap.

Returns:

a view of the portion of this map whose keys range from fromKey, inclusive, to toKey, exclusive.

Throws:

ClassCastException - if fromKey and toKey cannot be compared to one another using this map's comparator (or, if the map has no comparator, using natural ordering).

IllegalArgumentException - if fromKey is greater than toKey.

NullPointerException - if fromKey or toKey is null and this map does not support null keys.

headMap

ConcurrentNavigableMap<K,V> headMap(K toKey)

Returns a view of the portion of this map whose keys are strictly less than toKey. The returned sorted map is backed by this map, so changes in the returned sorted map are reflected in this map, and vice-versa.

Specified by:

headMap in interface NavigableMap<K,V>

Specified by:

headMap in interface SortedMap<K,V>

Parameters:

toKey - high endpoint (exclusive) of the headMap.

Returns:

a view of the portion of this map whose keys are strictly less than toKey.

Throws:

ClassCastException - if toKey is not compatible with this map's comparator (or, if the map has no comparator, if toKey does not implement Comparable).

NullPointerException - if toKey is null and this map does not support null keys.

tailMap

ConcurrentNavigableMap<K,V> tailMap(K fromKey)

Returns a view of the portion of this map whose keys are greater than or equal to fromKey. The returned sorted map is backed by this map, so changes in the returned sorted map are reflected in this map, and vice-versa.

Specified by:

tailMap in interface NavigableMap<K,V>

Specified by:

tailMap in interface SortedMap<K,V>

Parameters:

fromKey - low endpoint (inclusive) of the tailMap.

Returns:

a view of the portion of this map whose keys are greater than or equal to fromKey.

Throws:

ClassCastException - if fromKey is not compatible with this map's comparator (or, if the map has no comparator, if fromKey does not implement Comparable).

NullPointerException - if fromKey is null and this map does not support null keys.