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java.util.concurrent
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, and recursively so for its navigable sub-maps.
This interface is a member of the
Java Collections Framework
Java Collections Framework
.
-
Since:
-
1.6
Nested classes/interfaces inherited from interface java.util.
Map
|
Map.Entry
<
K
,
V
> |
Method Summary
|
NavigableSet
ConcurrentNavigableMap
<
K
,
V
|
descendingKeySet
headMap
()
(
K
Returns a reverse order
NavigableSet
Equivalent to
navigableHeadMap(K)
|
ConcurrentNavigableMap
<
K
,
V
|
descendingMap
navigableHeadMap
()
(
K
Returns a
reverse order
view of the
mappings contained in
portion of
this
map.
map whose keys are strictly less than
toKey
.
|
ConcurrentNavigableMap
<
K
,
V
|
headMap
navigableSubMap
(
K
fromKey,
K
Returns a view of the portion of this map whose keys
are strictly less than
range from
fromKey
, inclusive, to
toKey
.
, exclusive.
|
ConcurrentNavigableMap
<
K
,
V
|
headMap
navigableTailMap
(
K
Returns a view of the portion of this map whose keys are
less
greater
than
(or
or
equal
to, if inclusive is true) toKey.
to
fromKey
.
|
NavigableSet
ConcurrentNavigableMap
<
K
,
V
|
keySet
subMap
()
(
K
fromKey,
K
Returns a
NavigableSet
Equivalent to
navigableSubMap(K, K)
|
NavigableSet
ConcurrentNavigableMap
<
K
,
V
|
navigableKeySet
tailMap
()
(
K
Returns a
NavigableSet
Equivalent to
navigableTailMap(K)
|
ConcurrentNavigableMap
<
K
,
V
|
subMap
(
K
fromKey, boolean fromInclusive,
K
Returns a view of the portion of this map whose keys range from fromKey to toKey.
|
ConcurrentNavigableMap
<
K
,
V
|
subMap
(
K
fromKey,
K
Returns a view of the portion of this map whose keys range from
fromKey
, inclusive, to
toKey
, exclusive.
|
ConcurrentNavigableMap
<
K
,
V
|
tailMap
(
K
Returns a view of the portion of this map whose keys are greater than or equal to
fromKey
.
|
ConcurrentNavigableMap
<
K
,
V
|
tailMap
(
K
Returns a view of the portion of this map whose keys are greater than (or equal to, if inclusive is true) fromKey.
|
Methods inherited from interface java.util.
NavigableMap
|
ceilingEntry
,
ceilingKey
,
descendingEntrySet
,
descendingKeySet
,
firstEntry
,
floorEntry
,
floorKey
,
higherEntry
,
higherKey
,
lastEntry
,
lowerEntry
,
lowerKey
,
pollFirstEntry
,
pollLastEntry
|
Methods inherited from interface java.util.
Map
|
clear
,
containsKey
,
containsValue
,
equals
,
get
,
hashCode
,
isEmpty
,
put
,
putAll
,
remove
,
size
|
subMap
navigableSubMap
ConcurrentNavigableMap<K,V>
subMap ![](../../../diffpics/oold.gif)
navigableSubMap (K fromKey,
boolean fromInclusive,
K
toKey,
boolean toInclusive) ![](../../../diffpics/oold.gif)
toKey)
-
Description copied from interface:
NavigableMap
NavigableMap
-
Returns a view of the portion of this map whose keys range from
fromKey
, inclusive,
to
toKey. If
toKey
, exclusive. (If
fromKey
and
toKey
are equal, the returned map is
empty unless fromExclusive and toExclusive are both true.
empty.)
The returned map is backed by this map, so changes in the returned map are reflected in this map, and vice-versa. The returned map supports all optional map operations that this map supports.
The returned map will throw an
IllegalArgumentException
on an attempt to insert a key outside
of
its
range, or to construct a submap either of whose endpoints lie outside its
range.
-
-
Specified by:
-
subMap
navigableSubMap
in interface
NavigableMap
<
K
,
V
>
-
-
Parameters:
-
fromKey - low endpoint
(inclusive)
of the keys in the returned map -
fromInclusive - true if the low endpoint is to be included in the returned view
-
toKey - high endpoint of the keys in the returned map
-
toInclusive - true if the high endpoint is to be included in the returned view
toKey - high endpoint (exclusive) of the keys in the returned map
-
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). Implementations may, but are not required to, throw this exception if
fromKey
or
toKey
cannot be compared to keys currently in the map.
-
NullPointerException
- if
fromKey
or
toKey
is null and this map does not permit null keys
-
IllegalArgumentException
- if
fromKey
is greater than
toKey;
toKey
;
or if this map itself has a restricted range, and
fromKey
or
toKey
lies outside the bounds of the range
headMap
navigableHeadMap
ConcurrentNavigableMap<K,V>
headMap ![](../../../diffpics/oold.gif)
navigableHeadMap (K
toKey,
boolean inclusive) ![](../../../diffpics/oold.gif)
toKey)
-
Description copied from interface:
NavigableMap
NavigableMap
-
Returns a view of the portion of this map whose keys are
strictly
less than
(or equal to, if inclusive is true) toKey.
toKey
.
The returned map is backed by this map, so changes in the returned map are reflected in this map, and vice-versa. The returned map supports all optional map operations that this map supports.
The returned map will throw an
IllegalArgumentException
on an attempt to insert a key outside its range.
-
-
Specified by:
-
headMap
navigableHeadMap
in interface
NavigableMap
<
K
,
V
>
-
-
Parameters:
-
toKey - high endpoint
(exclusive)
of the keys in the returned map -
inclusive - true if the high endpoint is to be included in the returned view
-
Returns:
-
a view of the portion of this map whose keys are
strictly
less than
(or equal to, if inclusive is true)
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
). Implementations may, but are not required to, throw this exception if
toKey
cannot be compared to keys currently in the map.
-
NullPointerException
- if
toKey
is null and this map does not permit null keys
-
IllegalArgumentException
- if this map itself has a restricted range, and
toKey
lies outside the bounds of the range
tailMap
navigableTailMap
ConcurrentNavigableMap<K,V>
tailMap ![](../../../diffpics/oold.gif)
navigableTailMap (K
fromKey,
boolean inclusive) ![](../../../diffpics/oold.gif)
fromKey)
-
Description copied from interface:
NavigableMap
NavigableMap
-
Returns a view of the portion of this map whose keys are greater than
(or
or
equal
to, if inclusive is true) fromKey.
to
fromKey
.
The returned map is backed by this map, so changes in the returned map are reflected in this map, and vice-versa. The returned map supports all optional map operations that this map supports.
The returned map will throw an
IllegalArgumentException
on an attempt to insert a key outside its range.
-
-
Specified by:
-
tailMap
navigableTailMap
in interface
NavigableMap
<
K
,
V
>
-
-
Parameters:
-
fromKey - low endpoint
(inclusive)
of the keys in the returned map -
inclusive - true if the low endpoint is to be included in the returned view
-
Returns:
-
a view of the portion of this map whose keys are greater than
(or
or
equal
to, if inclusive is true)
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
). Implementations may, but are not required to, throw this exception if
fromKey
cannot be compared to keys currently in the map.
-
NullPointerException
- if
fromKey
is null and this map does not permit null keys
-
IllegalArgumentException
- if this map itself has a restricted range, and
fromKey
lies outside the bounds of the range
subMap
ConcurrentNavigableMap<K,V> subMap(K fromKey,
K toKey)
-
Description copied from interface:
NavigableMap
Equivalent to
navigableSubMap(K, K)
-
.
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 map is empty.) The returned map is backed by this map, so changes in the returned map are reflected in this map, and vice-versa. The returned map supports all optional map operations that this map supports.
The returned map will throw an
IllegalArgumentException
on an attempt to insert a key outside its range.
Equivalent to subMap(fromKey, true, toKey, false).
-
-
Specified by:
-
subMap
in interface
NavigableMap
<
K
,
V
>
-
Specified by:
-
subMap
in interface
SortedMap
<
K
,
V
>
-
-
Parameters:
-
fromKey - low endpoint (inclusive) of the keys in the returned map
-
toKey - high endpoint (exclusive) of the keys in the returned map
-
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). Implementations may, but are not required to, throw this exception if
fromKey
or
toKey
cannot be compared to keys currently in the map.
-
NullPointerException
- if
fromKey
or
toKey
is null and this map does not permit null keys
-
IllegalArgumentException
- if
fromKey
is greater than
toKey
; or if this map itself has a restricted range, and
fromKey
or
toKey
lies outside the bounds of the range
headMap
ConcurrentNavigableMap<K,V> headMap(K toKey)
-
Description copied from interface:
NavigableMap
Equivalent to
navigableHeadMap(K)
-
.
Returns a view of the portion of this map whose keys are strictly less than
toKey
. The returned map is backed by this map, so changes in the returned map are reflected in this map, and vice-versa. The returned map supports all optional map operations that this map supports.
The returned map will throw an
IllegalArgumentException
on an attempt to insert a key outside its range.
Equivalent to headMap(toKey, false).
-
-
Specified by:
-
headMap
in interface
NavigableMap
<
K
,
V
>
-
Specified by:
-
headMap
in interface
SortedMap
<
K
,
V
>
-
-
Parameters:
-
toKey - high endpoint (exclusive) of the keys in the returned map
-
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
). Implementations may, but are not required to, throw this exception if
toKey
cannot be compared to keys currently in the map.
-
NullPointerException
- if
toKey
is null and this map does not permit null keys
-
IllegalArgumentException
- if this map itself has a restricted range, and
toKey
lies outside the bounds of the range
tailMap
ConcurrentNavigableMap<K,V> tailMap(K fromKey)
-
Description copied from interface:
NavigableMap
Equivalent to
navigableTailMap(K)
-
.
Returns a view of the portion of this map whose keys are greater than or equal to
fromKey
. The returned map is backed by this map, so changes in the returned map are reflected in this map, and vice-versa. The returned map supports all optional map operations that this map supports.
The returned map will throw an
IllegalArgumentException
on an attempt to insert a key outside its range.
Equivalent to tailMap(fromKey, true).
-
-
Specified by:
-
tailMap
in interface
NavigableMap
<
K
,
V
>
-
Specified by:
-
tailMap
in interface
SortedMap
<
K
,
V
>
-
-
Parameters:
-
fromKey - low endpoint (inclusive) of the keys in the returned map
-
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
). Implementations may, but are not required to, throw this exception if
fromKey
cannot be compared to keys currently in the map.
-
NullPointerException
- if
fromKey
is null and this map does not permit null keys
-
IllegalArgumentException
- if this map itself has a restricted range, and
fromKey
lies outside the bounds of the range
descendingMap
ConcurrentNavigableMap
<
K
,
V
>
descendingMap
()
-
Returns a reverse order view of the mappings contained in this map. The descending map is backed by this map, so changes to the map are reflected in the descending map, and vice-versa.
The returned map has an ordering equivalent to
Collections.reverseOrder
(comparator())
. The expression m.descendingMap().descendingMap() returns a view of m essentially equivalent to m.
-
-
Specified by:
-
descendingMap
in interface
NavigableMap
<
K
,
V
>
-
-
Returns:
-
a reverse order view of this map
navigableKeySet
NavigableSet
<
K
>
navigableKeySet
()
-
Returns a
NavigableSet
view of the keys contained in this map. The set's iterator returns the keys in ascending order. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.
The view's iterator is a "weakly consistent" iterator that will never throw
ConcurrentModificationException
, and guarantees to traverse elements as they existed upon construction of the iterator, and may (but is not guaranteed to) reflect any modifications subsequent to construction.
-
-
Specified by:
-
navigableKeySet
in interface
NavigableMap
<
K
,
V
>
-
-
Returns:
-
a navigable set view of the keys in this map
keySet
NavigableSet
<
K
>
keySet
()
-
Returns a
NavigableSet
view of the keys contained in this map. The set's iterator returns the keys in ascending order. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.
The view's iterator is a "weakly consistent" iterator that will never throw
ConcurrentModificationException
, and guarantees to traverse elements as they existed upon construction of the iterator, and may (but is not guaranteed to) reflect any modifications subsequent to construction.
This method is equivalent to method navigableKeySet.
-
-
Specified by:
-
keySet
in interface
Map
<
K
,
V
>
-
Specified by:
-
keySet
in interface
SortedMap
<
K
,
V
>
-
-
Returns:
-
a navigable set view of the keys in this map
descendingKeySet
NavigableSet
<
K
>
descendingKeySet
()
-
Returns a reverse order
NavigableSet
view of the keys contained in this map. The set's iterator returns the keys in descending order. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.
The view's iterator is a "weakly consistent" iterator that will never throw
ConcurrentModificationException
, and guarantees to traverse elements as they existed upon construction of the iterator, and may (but is not guaranteed to) reflect any modifications subsequent to construction.
-
-
Specified by:
-
descendingKeySet
in interface
NavigableMap
<
K
,
V
>
-
-
Returns:
-
a reverse order navigable set view of the keys in this map