it.unimi.dsi.fastutil.doubles

Class Double2DoubleRBTreeMap

java.lang.Object

it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleFunction

it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleMap

it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleSortedMap

it.unimi.dsi.fastutil.doubles.Double2DoubleRBTreeMap

All Implemented Interfaces:

Double2DoubleFunction, Double2DoubleMap, Double2DoubleSortedMap, Serializable, Cloneable, DoubleUnaryOperator, Function<Double,Double>, Map<Double,Double>, SortedMap<Double,Double>

public class Double2DoubleRBTreeMap
extends AbstractDouble2DoubleSortedMap
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.AbstractDouble2DoubleSortedMap

AbstractDouble2DoubleSortedMap.KeySetIterator, AbstractDouble2DoubleSortedMap.ValuesCollection, AbstractDouble2DoubleSortedMap.ValuesIterator

Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleMap

AbstractDouble2DoubleMap.BasicEntry, AbstractDouble2DoubleMap.BasicEntrySet

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleSortedMap

Double2DoubleSortedMap.FastSortedEntrySet

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleMap

Double2DoubleMap.FastEntrySet

Field Summary

Fields

Modifier and Type	Field and Description
protected DoubleComparator	actualComparator This map's actual comparator; it may differ from storedComparator because it is always a type-specific comparator, so it could be derived from the former by wrapping.
protected int	count Number of entries in this map.
protected ObjectSortedSet<Double2DoubleMap.Entry>	entries Cached set of entries.
protected it.unimi.dsi.fastutil.doubles.Double2DoubleRBTreeMap.Entry	firstEntry The first key in this map.
protected DoubleSortedSet	keys Cached set of keys.
protected it.unimi.dsi.fastutil.doubles.Double2DoubleRBTreeMap.Entry	lastEntry The last key in this map.
protected boolean	modified The value of this variable remembers, after a put() or a remove(), whether the domain of the map has been modified.
protected Comparator<? super Double>	storedComparator This map's comparator, as provided in the constructor.
protected it.unimi.dsi.fastutil.doubles.Double2DoubleRBTreeMap.Entry	tree A reference to the root entry.
protected DoubleCollection	values Cached collection of values.

Fields inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleFunction

defRetValue

Constructor Summary

Constructors

Constructor and Description
Double2DoubleRBTreeMap() Creates a new empty tree map.
Double2DoubleRBTreeMap(Comparator<? super Double> c) Creates a new empty tree map with the given comparator.
Double2DoubleRBTreeMap(double[] k, double[] v) Creates a new tree map using the elements of two parallel arrays.
Double2DoubleRBTreeMap(double[] k, double[] v, Comparator<? super Double> c) Creates a new tree map using the elements of two parallel arrays and the given comparator.
Double2DoubleRBTreeMap(Double2DoubleMap m) Creates a new tree map copying a given map.
Double2DoubleRBTreeMap(Double2DoubleSortedMap m) Creates a new tree map copying a given sorted map (and its Comparator).
Double2DoubleRBTreeMap(Map<? extends Double,? extends Double> m) Creates a new tree map copying a given map.
Double2DoubleRBTreeMap(SortedMap<Double,Double> m) Creates a new tree map copying a given sorted map (and its Comparator).

Method Summary

Modifier and Type	Method and Description
double	addTo(double k, double incr) Adds an increment to value currently associated with a key.
void	clear() Removes all of the mappings from this map (optional operation).
Double2DoubleRBTreeMap	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(double v) Returns true if this map maps one or more keys to the specified value.
ObjectSortedSet<Double2DoubleMap.Entry>	double2DoubleEntrySet() 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.
double	get(double k) Returns the value to which the given key is mapped.
Double2DoubleSortedMap	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.
double	put(double k, double v) Adds a pair to the map (optional operation).
double	remove(double k) Removes the mapping with the given key (optional operation).
int	size() Returns the number of key/value mappings in this map.
Double2DoubleSortedMap	subMap(double from, double to) Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
Double2DoubleSortedMap	tailMap(double from) Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
DoubleCollection	values() Returns a type-specific collection view of the values contained in this map.

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleMap

equals, hashCode, putAll, toString

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleFunction

defaultReturnValue, defaultReturnValue

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleSortedMap

entrySet, firstKey, headMap, lastKey, subMap, tailMap

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleMap

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

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleFunction

applyAsDouble

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

apply

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Methods inherited from interface java.util.function.DoubleUnaryOperator

andThen, compose, identity

Methods inherited from interface java.util.Map

equals, forEach, hashCode, putAll, replaceAll

Field Detail

tree

protected transient it.unimi.dsi.fastutil.doubles.Double2DoubleRBTreeMap.Entry tree

A reference to the root entry.

count

protected int count

Number of entries in this map.

firstEntry

protected transient it.unimi.dsi.fastutil.doubles.Double2DoubleRBTreeMap.Entry firstEntry

The first key in this map.

lastEntry

protected transient it.unimi.dsi.fastutil.doubles.Double2DoubleRBTreeMap.Entry lastEntry

The last key in this map.

entries

protected transient ObjectSortedSet<Double2DoubleMap.Entry> entries

Cached set of entries.

keys

protected transient DoubleSortedSet keys

Cached set of keys.

values

protected transient DoubleCollection values

Cached collection of values.

modified

protected transient boolean modified

The value of this variable remembers, after a put() or a remove(), whether the domain of the map has been modified.

storedComparator

protected Comparator<? super Double> storedComparator

This map's comparator, as provided in the constructor.

actualComparator

protected transient DoubleComparator actualComparator

This map's actual comparator; it may differ from storedComparator because it is always a type-specific comparator, so it could be derived from the former by wrapping.

Constructor Detail

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap()

Creates a new empty tree map.

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap(Comparator<? super Double> c)

Creates a new empty tree map with the given comparator.

Parameters:

c - a (possibly type-specific) comparator.

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap(Map<? extends Double,? extends Double> m)

Creates a new tree map copying a given map.

Parameters:

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

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap(SortedMap<Double,Double> 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.

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap(Double2DoubleMap m)

Creates a new tree map copying a given map.

Parameters:

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

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap(Double2DoubleSortedMap 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.

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap(double[] k,
                              double[] 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.

Double2DoubleRBTreeMap

public Double2DoubleRBTreeMap(double[] k,
                              double[] 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 Detail

addTo

public double addTo(double k,
                    double 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 double put(double k,
                  double v)

Description copied from interface: Double2DoubleFunction

Adds a pair to the map (optional operation).

Specified by:

put in interface Double2DoubleFunction

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 double remove(double k)

Description copied from interface: Double2DoubleFunction

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

Specified by:

remove in interface Double2DoubleFunction

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(double v)

Description copied from interface: Double2DoubleMap

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

Specified by:

containsValue in interface Double2DoubleMap

Overrides:

containsValue in class AbstractDouble2DoubleMap

See Also:

Map.containsValue(Object)

clear

public void clear()

Description copied from interface: Double2DoubleMap

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

Specified by:

clear in interface Double2DoubleMap

Specified by:

clear in interface Map<Double,Double>

See Also:

Map.clear()

containsKey

public boolean containsKey(double k)

Description copied from interface: Double2DoubleMap

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

Specified by:

containsKey in interface Double2DoubleFunction

Specified by:

containsKey in interface Double2DoubleMap

Overrides:

containsKey in class AbstractDouble2DoubleMap

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: Double2DoubleMap

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 Double2DoubleMap

Specified by:

size in interface Map<Double,Double>

Returns:

the number of key-value mappings in this map.

See Also:

Size64

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Double,Double>

Overrides:

isEmpty in class AbstractDouble2DoubleMap

get

public double get(double k)

Description copied from interface: Double2DoubleFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Double2DoubleFunction

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: Double2DoubleSortedMap

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

Specified by:

firstDoubleKey in interface Double2DoubleSortedMap

See Also:

SortedMap.firstKey()

lastDoubleKey

public double lastDoubleKey()

Description copied from interface: Double2DoubleSortedMap

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

Specified by:

lastDoubleKey in interface Double2DoubleSortedMap

See Also:

SortedMap.lastKey()

double2DoubleEntrySet

public ObjectSortedSet<Double2DoubleMap.Entry> double2DoubleEntrySet()

Description copied from interface: Double2DoubleSortedMap

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

Note that this specification strengthens the one given in the corresponding type-specific unsorted map.

Specified by:

double2DoubleEntrySet in interface Double2DoubleMap

Specified by:

double2DoubleEntrySet in interface Double2DoubleSortedMap

Returns:

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

See Also:

Double2DoubleSortedMap.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 Double2DoubleMap

Specified by:

keySet in interface Double2DoubleSortedMap

Specified by:

keySet in interface Map<Double,Double>

Specified by:

keySet in interface SortedMap<Double,Double>

Overrides:

keySet in class AbstractDouble2DoubleSortedMap

Returns:

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

See Also:

Map.keySet()

values

public DoubleCollection 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 Double2DoubleMap

Specified by:

values in interface Double2DoubleSortedMap

Specified by:

values in interface Map<Double,Double>

Specified by:

values in interface SortedMap<Double,Double>

Overrides:

values in class AbstractDouble2DoubleSortedMap

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: Double2DoubleSortedMap

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

Note that this specification strengthens the one given in SortedMap.comparator().

Specified by:

comparator in interface Double2DoubleSortedMap

Specified by:

comparator in interface SortedMap<Double,Double>

See Also:

SortedMap.comparator()

headMap

public Double2DoubleSortedMap headMap(double to)

Description copied from interface: Double2DoubleSortedMap

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

Note that this specification strengthens the one given in SortedMap.headMap(Object).

Specified by:

headMap in interface Double2DoubleSortedMap

See Also:

SortedMap.headMap(Object)

tailMap

public Double2DoubleSortedMap tailMap(double from)

Description copied from interface: Double2DoubleSortedMap

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

Note that this specification strengthens the one given in SortedMap.tailMap(Object).

Specified by:

tailMap in interface Double2DoubleSortedMap

See Also:

SortedMap.tailMap(Object)

subMap

public Double2DoubleSortedMap subMap(double from,
                                     double to)

Description copied from interface: Double2DoubleSortedMap

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

Note that this specification strengthens the one given in SortedMap.subMap(Object,Object).

Specified by:

subMap in interface Double2DoubleSortedMap

See Also:

SortedMap.subMap(Object,Object)

clone

public Double2DoubleRBTreeMap 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.

Overrides:

clone in class Object

Returns:

a deep copy of this tree map.