@Beta @GwtIncompatible(value="NavigableMap") public final class TreeRangeMap<K extends Comparable,V> extends Object implements RangeMap<K,V>
An implementation of RangeMap
based on a TreeMap
, supporting all optional operations.
Like all RangeMap
implementations, this supports neither null keys nor null values.
Modifier and Type | Method and Description |
---|---|
Map<Range<K>,V> |
asDescendingMapOfRanges()
Returns a view of this range map as an unmodifiable
Map<Range<K>, V> . |
Map<Range<K>,V> |
asMapOfRanges()
Returns a view of this range map as an unmodifiable
Map<Range<K>, V> . |
void |
clear()
Removes all associations from this range map (optional operation).
|
static <K extends Comparable,V> |
create() |
boolean |
equals(Object o)
|
V |
get(K key)
Returns the value associated with the specified key, or
null if there is no such value. |
Map.Entry<Range<K>,V> |
getEntry(K key)
Returns the range containing this key and its associated value, if such a range is present in the range map, or
null otherwise. |
int |
hashCode()
Returns
asMapOfRanges().hashCode() . |
void |
put(Range<K> range,
V value)
Maps a range to a specified value (optional operation).
|
void |
putAll(RangeMap<K,V> rangeMap)
Puts all the associations from
rangeMap into this range map (optional operation). |
void |
remove(Range<K> rangeToRemove)
Removes all associations from this range map in the specified range (optional operation).
|
Range<K> |
span()
Returns the minimal range enclosing the ranges in this
RangeMap . |
RangeMap<K,V> |
subRangeMap(Range<K> subRange)
Returns a view of the part of this range map that intersects with
range . |
String |
toString()
Returns a readable string representation of this range map.
|
public static <K extends Comparable,V> TreeRangeMap<K,V> create()
@Nullable public V get(K key)
RangeMap
Returns the value associated with the specified key, or null
if there is no such value.
Specifically, if any range in this range map contains the specified key, the value associated with that range is returned.
get
in interface RangeMap<K extends Comparable,V>
@Nullable public Map.Entry<Range<K>,V> getEntry(K key)
RangeMap
Returns the range containing this key and its associated value, if such a range is present in the range map, or null
otherwise.
getEntry
in interface RangeMap<K extends Comparable,V>
public void put(Range<K> range, V value)
RangeMap
Maps a range to a specified value (optional operation).
Specifically, after a call to put(range, value)
, if range.contains(k)
, then get(k)
will return value
.
If range
is empty, then this is a no-op.
put
in interface RangeMap<K extends Comparable,V>
public void putAll(RangeMap<K,V> rangeMap)
RangeMap
Puts all the associations from rangeMap
into this range map (optional operation).
putAll
in interface RangeMap<K extends Comparable,V>
public void clear()
RangeMap
Removes all associations from this range map (optional operation).
clear
in interface RangeMap<K extends Comparable,V>
public Range<K> span()
RangeMap
Returns the minimal range enclosing the ranges in this RangeMap
.
span
in interface RangeMap<K extends Comparable,V>
public void remove(Range<K> rangeToRemove)
RangeMap
Removes all associations from this range map in the specified range (optional operation).
If !range.contains(k)
, get(k)
will return the same result before and after a call to remove(range)
. If range.contains(k)
, then after a call to remove(range)
, get(k)
will return null
.
remove
in interface RangeMap<K extends Comparable,V>
public Map<Range<K>,V> asMapOfRanges()
RangeMap
Returns a view of this range map as an unmodifiable Map<Range<K>, V>
. Modifications to this range map are guaranteed to read through to the returned Map
.
The returned Map
iterates over entries in ascending order of the bounds of the Range
entries.
It is guaranteed that no empty ranges will be in the returned Map
.
asMapOfRanges
in interface RangeMap<K extends Comparable,V>
public Map<Range<K>,V> asDescendingMapOfRanges()
RangeMap
Returns a view of this range map as an unmodifiable Map<Range<K>, V>
. Modifications to this range map are guaranteed to read through to the returned Map
.
The returned Map
iterates over entries in descending order of the bounds of the Range
entries.
It is guaranteed that no empty ranges will be in the returned Map
.
asDescendingMapOfRanges
in interface RangeMap<K extends Comparable,V>
public RangeMap<K,V> subRangeMap(Range<K> subRange)
RangeMap
Returns a view of the part of this range map that intersects with range
.
For example, if rangeMap
had the entries [1, 5] => "foo", (6, 8) => "bar", (10, ‥) => "baz"
then rangeMap.subRangeMap(Range.open(3, 12))
would return a range map with the entries (3, 5) => "foo", (6, 8) => "bar", (10, 12) => "baz"
.
The returned range map supports all optional operations that this range map supports, except for asMapOfRanges().iterator().remove()
.
The returned range map will throw an IllegalArgumentException
on an attempt to insert a range not enclosed by range
.
subRangeMap
in interface RangeMap<K extends Comparable,V>
public boolean equals(@Nullable Object o)
RangeMap
Returns true
if obj
is another RangeMap
that has an equivalent RangeMap.asMapOfRanges()
.
public int hashCode()
RangeMap
Returns asMapOfRanges().hashCode()
.