Package it.unimi.dsi.fastutil.doubles

Class Double2LongRBTreeMap

java.lang.Object

it.unimi.dsi.fastutil.doubles.AbstractDouble2LongFunction

it.unimi.dsi.fastutil.doubles.AbstractDouble2LongMap

it.unimi.dsi.fastutil.doubles.AbstractDouble2LongSortedMap

it.unimi.dsi.fastutil.doubles.Double2LongRBTreeMap

All Implemented Interfaces:

Double2LongFunction, Double2LongMap, Double2LongSortedMap, Function<Double,Long>, Serializable, Cloneable, DoubleToLongFunction, Function<Double,Long>, Map<Double,Long>, SequencedMap<Double,Long>, SortedMap<Double,Long>

public class Double2LongRBTreeMap
extends AbstractDouble2LongSortedMap
implements Serializable, Cloneable

A type-specific red-black tree map with a fast, small-footprint implementation.

The iterators provided by the views of this class are type-specific bidirectional iterators. Moreover, the iterator returned by iterator() can be safely cast to a type-specific list iterator.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2LongMap

AbstractDouble2LongMap.BasicEntry, AbstractDouble2LongMap.BasicEntrySet

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2LongMap

Double2LongMap.FastEntrySet

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2LongSortedMap

Double2LongSortedMap.FastSortedEntrySet

Constructor Summary

Constructors

Constructor	Description
Double2LongRBTreeMap()	Creates a new empty tree map.
Double2LongRBTreeMap(double[] k, long[] v)	Creates a new tree map using the elements of two parallel arrays.
Double2LongRBTreeMap(double[] k, long[] v, Comparator<? super Double> c)	Creates a new tree map using the elements of two parallel arrays and the given comparator.
Double2LongRBTreeMap(Double2LongMap m)	Creates a new tree map copying a given map.
Double2LongRBTreeMap(Double2LongSortedMap m)	Creates a new tree map copying a given sorted map (and its Comparator).
Double2LongRBTreeMap(Comparator<? super Double> c)	Creates a new empty tree map with the given comparator.
Double2LongRBTreeMap(Map<? extends Double,? extends Long> m)	Creates a new tree map copying a given map.
Double2LongRBTreeMap(SortedMap<Double,Long> m)	Creates a new tree map copying a given sorted map (and its Comparator).

Method Summary

Modifier and Type	Method	Description
long	addTo(double k, long incr)	Adds an increment to value currently associated with a key.
void	clear()	Removes all of the mappings from this map (optional operation).
Double2LongRBTreeMap	clone()	Returns a deep copy of this tree map.
DoubleComparator	comparator()	Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.
boolean	containsKey(double k)	Returns true if this function contains a mapping for the specified key.
boolean	containsValue(long v)	Returns true if this map maps one or more keys to the specified value.
ObjectSortedSet<Double2LongMap.Entry>	double2LongEntrySet()	Returns a type-specific sorted-set view of the mappings contained in this map.
double	firstDoubleKey()	Returns the first (lowest) key currently in this map.
long	get(double k)	Returns the value to which the given key is mapped.
Double2LongSortedMap	headMap(double to)	Returns a view of the portion of this sorted map whose keys are strictly less than toKey.
boolean	isEmpty()
DoubleSortedSet	keySet()	Returns a type-specific sorted set view of the keys contained in this map.
double	lastDoubleKey()	Returns the last (highest) key currently in this map.
long	put(double k, long v)	Adds a pair to the map (optional operation).
long	remove(double k)	Removes the mapping with the given key (optional operation).
int	size()	Returns the number of key/value mappings in this map.
Double2LongSortedMap	subMap(double from, double to)	Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
Double2LongSortedMap	tailMap(double from)	Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
LongCollection	values()	Returns a type-specific collection view of the values contained in this map.

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2LongMap

equals, hashCode, mergeLong, putAll, toString

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2LongFunction

defaultReturnValue, defaultReturnValue

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2LongFunction

andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsLong, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2LongMap

compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsent, computeIfAbsentNullable, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsValue, defaultReturnValue, defaultReturnValue, forEach, get, getOrDefault, getOrDefault, merge, merge, mergeLong, mergeLong, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2LongSortedMap

entrySet, firstKey, headMap, lastKey, subMap, tailMap

Methods inherited from interface it.unimi.dsi.fastutil.Function

apply

Methods inherited from interface java.util.Map

containsKey, equals, get, getOrDefault, hashCode, put, putAll, remove, replaceAll

Methods inherited from interface java.util.SequencedMap

firstEntry, lastEntry, pollFirstEntry, pollLastEntry, sequencedEntrySet, sequencedKeySet, sequencedValues

Methods inherited from interface java.util.SortedMap

putFirst, putLast, reversed

Constructor Details

Double2LongRBTreeMap

public Double2LongRBTreeMap()

Creates a new empty tree map.

Double2LongRBTreeMap

public Double2LongRBTreeMap(Comparator<? super Double> c)

Creates a new empty tree map with the given comparator.

Parameters:

c - a (possibly type-specific) comparator.

Double2LongRBTreeMap

public Double2LongRBTreeMap(Map<? extends Double,? extends Long> m)

Creates a new tree map copying a given map.

Parameters:

m - a Map to be copied into the new tree map.

Double2LongRBTreeMap

public Double2LongRBTreeMap(SortedMap<Double,Long> m)

Creates a new tree map copying a given sorted map (and its Comparator).

Parameters:

m - a SortedMap to be copied into the new tree map.

Double2LongRBTreeMap

public Double2LongRBTreeMap(Double2LongMap m)

Creates a new tree map copying a given map.

Parameters:

m - a type-specific map to be copied into the new tree map.

Double2LongRBTreeMap

public Double2LongRBTreeMap(Double2LongSortedMap m)

Creates a new tree map copying a given sorted map (and its Comparator).

Parameters:

m - a type-specific sorted map to be copied into the new tree map.

Double2LongRBTreeMap

public Double2LongRBTreeMap(double[] k,
 long[] v,
 Comparator<? super Double> c)

Creates a new tree map using the elements of two parallel arrays and the given comparator.

Parameters:

k - the array of keys of the new tree map.

v - the array of corresponding values in the new tree map.

c - a (possibly type-specific) comparator.

Throws:

IllegalArgumentException - if k and v have different lengths.

Double2LongRBTreeMap

public Double2LongRBTreeMap(double[] k,
 long[] v)

Creates a new tree map using the elements of two parallel arrays.

Parameters:

k - the array of keys of the new tree map.

v - the array of corresponding values in the new tree map.

Throws:

IllegalArgumentException - if k and v have different lengths.

Method Details

addTo

public long addTo(double k,
 long incr)

Adds an increment to value currently associated with a key.

Note that this method respects the default return value semantics: when called with a key that does not currently appears in the map, the key will be associated with the default return value plus the given increment.

Parameters:

k - the key.

incr - the increment.

Returns:

the old value, or the default return value if no value was present for the given key.

put

public long put(double k,
 long v)

Description copied from interface: Double2LongFunction

Adds a pair to the map (optional operation).

Specified by:

put in interface Double2LongFunction

Parameters:

k - the key.

v - the value.

Returns:

the old value, or the default return value if no value was present for the given key.

See Also:

• Function.put(Object,Object)

remove

public long remove(double k)

Description copied from interface: Double2LongFunction

Removes the mapping with the given key (optional operation).

Specified by:

remove in interface Double2LongFunction

Parameters:

k - the key.

Returns:

the old value, or the default return value if no value was present for the given key.

See Also:

• Function.remove(Object)

containsValue

public boolean containsValue(long v)

Description copied from class: AbstractDouble2LongMap

Returns true if this map maps one or more keys to the specified value.

Specified by:

containsValue in interface Double2LongMap

Overrides:

containsValue in class AbstractDouble2LongMap

See Also:

• Map.containsValue(Object)

clear

public void clear()

Description copied from interface: Double2LongMap

Removes all of the mappings from this map (optional operation). The map will be empty after this call returns.

Specified by:

clear in interface Double2LongMap

Specified by:

clear in interface Function<Double,Long>

Specified by:

clear in interface Map<Double,Long>

See Also:

• Map.clear()

containsKey

public boolean containsKey(double k)

Description copied from class: AbstractDouble2LongMap

Returns true if this function contains a mapping for the specified key.

Specified by:

containsKey in interface Double2LongFunction

Specified by:

containsKey in interface Double2LongMap

Overrides:

containsKey in class AbstractDouble2LongMap

Parameters:

k - the key.

Returns:

true if this function associates a value to key.

See Also:

• Map.containsKey(Object)

size

public int size()

Description copied from interface: Double2LongMap

Returns the number of key/value mappings in this map. If the map contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

Specified by:

size in interface Double2LongMap

Specified by:

size in interface Function<Double,Long>

Specified by:

size in interface Map<Double,Long>

Returns:

the number of key-value mappings in this map.

See Also:

• Size64

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Double,Long>

Overrides:

isEmpty in class AbstractDouble2LongMap

get

public long get(double k)

Description copied from interface: Double2LongFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Double2LongFunction

Parameters:

k - the key.

Returns:

the corresponding value, or the default return value if no value was present for the given key.

See Also:

• Function.get(Object)

firstDoubleKey

public double firstDoubleKey()

Description copied from interface: Double2LongSortedMap

Returns the first (lowest) key currently in this map.

Specified by:

firstDoubleKey in interface Double2LongSortedMap

See Also:

• SortedMap.firstKey()

lastDoubleKey

public double lastDoubleKey()

Description copied from interface: Double2LongSortedMap

Returns the last (highest) key currently in this map.

Specified by:

lastDoubleKey in interface Double2LongSortedMap

See Also:

• SortedMap.lastKey()

double2LongEntrySet

public ObjectSortedSet<Double2LongMap.Entry> double2LongEntrySet()

Description copied from interface: Double2LongSortedMap

Returns a type-specific sorted-set view of the mappings contained in this map.

Specified by:

double2LongEntrySet in interface Double2LongMap

Specified by:

double2LongEntrySet in interface Double2LongSortedMap

Returns:

a type-specific sorted-set view of the mappings contained in this map.

See Also:

• Double2LongSortedMap.entrySet()

keySet

public DoubleSortedSet keySet()

Returns a type-specific sorted set view of the keys contained in this map.

In addition to the semantics of Map.keySet(), you can safely cast the set returned by this call to a type-specific sorted set interface.

Specified by:

keySet in interface Double2LongMap

Specified by:

keySet in interface Double2LongSortedMap

Specified by:

keySet in interface Map<Double,Long>

Specified by:

keySet in interface SortedMap<Double,Long>

Overrides:

keySet in class AbstractDouble2LongSortedMap

Returns:

a type-specific sorted set view of the keys contained in this map.

See Also:

• Map.keySet()

values

public LongCollection values()

Returns a type-specific collection view of the values contained in this map.

In addition to the semantics of Map.values(), you can safely cast the collection returned by this call to a type-specific collection interface.

Specified by:

values in interface Double2LongMap

Specified by:

values in interface Double2LongSortedMap

Specified by:

values in interface Map<Double,Long>

Specified by:

values in interface SortedMap<Double,Long>

Overrides:

values in class AbstractDouble2LongSortedMap

Returns:

a type-specific collection view of the values contained in this map.

See Also:

• Map.values()

comparator

public DoubleComparator comparator()

Description copied from interface: Double2LongSortedMap

Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.

Specified by:

comparator in interface Double2LongSortedMap

Specified by:

comparator in interface SortedMap<Double,Long>

See Also:

• SortedMap.comparator()

headMap

public Double2LongSortedMap headMap(double to)

Description copied from interface: Double2LongSortedMap

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

Specified by:

headMap in interface Double2LongSortedMap

See Also:

• SortedMap.headMap(Object)

tailMap

public Double2LongSortedMap tailMap(double from)

Description copied from interface: Double2LongSortedMap

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

Specified by:

tailMap in interface Double2LongSortedMap

See Also:

• SortedMap.tailMap(Object)

subMap

public Double2LongSortedMap subMap(double from,
 double to)

Description copied from interface: Double2LongSortedMap

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

Specified by:

subMap in interface Double2LongSortedMap

See Also:

• SortedMap.subMap(Object,Object)

clone

public Double2LongRBTreeMap clone()

Returns a deep copy of this tree map.

This method performs a deep copy of this tree map; the data stored in the set, however, is not cloned. Note that this makes a difference only for object keys.

Returns:

a deep copy of this tree map.