Class Short2DoubleAVLTreeMap

java.lang.Object

it.unimi.dsi.fastutil.shorts.AbstractShort2DoubleFunction

it.unimi.dsi.fastutil.shorts.AbstractShort2DoubleMap

it.unimi.dsi.fastutil.shorts.AbstractShort2DoubleSortedMap

it.unimi.dsi.fastutil.shorts.Short2DoubleAVLTreeMap

All Implemented Interfaces:

Function<Short,Double>, Short2DoubleFunction, Short2DoubleMap, Short2DoubleSortedMap, Serializable, Cloneable, Function<Short,Double>, IntToDoubleFunction, Map<Short,Double>, SequencedMap<Short,Double>, SortedMap<Short,Double>

public class Short2DoubleAVLTreeMap
extends AbstractShort2DoubleSortedMap
implements Serializable, Cloneable

A type-specific AVL 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.shorts.AbstractShort2DoubleMap

AbstractShort2DoubleMap.BasicEntry, AbstractShort2DoubleMap.BasicEntrySet

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.shorts.Short2DoubleMap

Short2DoubleMap.FastEntrySet

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.shorts.Short2DoubleSortedMap

Short2DoubleSortedMap.FastSortedEntrySet

Constructor Summary

Constructors

Constructor	Description
Short2DoubleAVLTreeMap()	Creates a new empty tree map.
Short2DoubleAVLTreeMap(short[] k, double[] v)	Creates a new tree map using the elements of two parallel arrays.
Short2DoubleAVLTreeMap(short[] k, double[] v, Comparator<? super Short> c)	Creates a new tree map using the elements of two parallel arrays and the given comparator.
Short2DoubleAVLTreeMap(Short2DoubleMap m)	Creates a new tree map copying a given map.
Short2DoubleAVLTreeMap(Short2DoubleSortedMap m)	Creates a new tree map copying a given sorted map (and its Comparator).
Short2DoubleAVLTreeMap(Comparator<? super Short> c)	Creates a new empty tree map with the given comparator.
Short2DoubleAVLTreeMap(Map<? extends Short, ? extends Double> m)	Creates a new tree map copying a given map.
Short2DoubleAVLTreeMap(SortedMap<Short,Double> m)	Creates a new tree map copying a given sorted map (and its Comparator).

Method Summary

Modifier and Type	Method	Description
double	addTo(short k, double incr)	Adds an increment to value currently associated with a key.
void	clear()	Removes all associations from this function (optional operation).
Short2DoubleAVLTreeMap	clone()	Returns a deep copy of this tree map.
ShortComparator	comparator()	Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.
boolean	containsKey(short 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.
short	firstShortKey()	Returns the first (lowest) key currently in this map.
double	get(short k)	Returns the value to which the given key is mapped.
Short2DoubleSortedMap	headMap(short to)	Returns a view of the portion of this sorted map whose keys are strictly less than toKey.
boolean	isEmpty()
ShortSortedSet	keySet()	Returns a type-specific sorted set view of the keys contained in this map.
short	lastShortKey()	Returns the last (highest) key currently in this map.
double	put(short k, double v)	Adds a pair to the map (optional operation).
double	remove(short k)	Removes the mapping with the given key (optional operation).
ObjectSortedSet<Short2DoubleMap.Entry>	short2DoubleEntrySet()	Returns a type-specific set view of the mappings contained in this map.
int	size()	Returns the intended number of keys in this function, or -1 if no such number exists.
Short2DoubleSortedMap	subMap(short from, short to)	Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
Short2DoubleSortedMap	tailMap(short 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.shorts.AbstractShort2DoubleMap

equals, hashCode, mergeDouble, putAll, toString

Methods inherited from class it.unimi.dsi.fastutil.shorts.AbstractShort2DoubleFunction

defaultReturnValue, defaultReturnValue

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

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 it.unimi.dsi.fastutil.shorts.Short2DoubleFunction

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

Methods inherited from interface it.unimi.dsi.fastutil.shorts.Short2DoubleMap

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

Methods inherited from interface it.unimi.dsi.fastutil.shorts.Short2DoubleSortedMap

entrySet, firstKey, headMap, lastKey, subMap, tailMap

Methods inherited from interface java.util.SortedMap

putFirst, putLast, reversed

Constructor Details

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap()

Creates a new empty tree map.

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap(Comparator<? super Short> c)

Creates a new empty tree map with the given comparator.

Parameters:

c - a (possibly type-specific) comparator.

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap(Map<? extends Short, ? extends Double> m)

Creates a new tree map copying a given map.

Parameters:

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

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap(SortedMap<Short,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.

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap(Short2DoubleMap m)

Creates a new tree map copying a given map.

Parameters:

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

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap(Short2DoubleSortedMap 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.

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap(short[] k,
 double[] v,
 Comparator<? super Short> 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.

Short2DoubleAVLTreeMap

public Short2DoubleAVLTreeMap(short[] 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 Details

addTo

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

Description copied from interface: Short2DoubleFunction

Adds a pair to the map (optional operation).

Specified by:

put in interface Short2DoubleFunction

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(short k)

Description copied from interface: Short2DoubleFunction

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

Specified by:

remove in interface Short2DoubleFunction

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 class: AbstractShort2DoubleMap

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

Specified by:

containsValue in interface Short2DoubleMap

Overrides:

containsValue in class AbstractShort2DoubleMap

See Also:

• Map.containsValue(Object)

clear

public void clear()

Description copied from interface: Function

Removes all associations from this function (optional operation).

Specified by:

clear in interface Function<Short,Double>

Specified by:

clear in interface Map<Short,Double>

Specified by:

clear in interface Short2DoubleMap

See Also:

• Map.clear()

containsKey

public boolean containsKey(short k)

Description copied from class: AbstractShort2DoubleMap

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

Note that for some kind of functions (e.g., hashes) this method will always return true. In particular, this default implementation always returns true.

Specified by:

containsKey in interface Short2DoubleFunction

Specified by:

containsKey in interface Short2DoubleMap

Overrides:

containsKey in class AbstractShort2DoubleMap

Parameters:

k - the key.

Returns:

true if this function associates a value to key.

See Also:

• Function.containsKey(Object)

size

public int size()

Description copied from interface: Function

Returns the intended number of keys in this function, or -1 if no such number exists.

Most function implementations will have some knowledge of the intended number of keys in their domain. In some cases, however, this might not be possible. This default implementation, in particular, returns -1.

Specified by:

size in interface Function<Short,Double>

Specified by:

size in interface Map<Short,Double>

Specified by:

size in interface Short2DoubleMap

Returns:

the intended number of keys in this function, or -1 if that number is not available.

See Also:

• Size64

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Short,Double>

Overrides:

isEmpty in class AbstractShort2DoubleMap

get

public double get(short k)

Description copied from interface: Short2DoubleFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Short2DoubleFunction

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)

firstShortKey

public short firstShortKey()

Description copied from interface: Short2DoubleSortedMap

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

Specified by:

firstShortKey in interface Short2DoubleSortedMap

See Also:

• SortedMap.firstKey()

lastShortKey

public short lastShortKey()

Description copied from interface: Short2DoubleSortedMap

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

Specified by:

lastShortKey in interface Short2DoubleSortedMap

See Also:

• SortedMap.lastKey()

short2DoubleEntrySet

public ObjectSortedSet<Short2DoubleMap.Entry> short2DoubleEntrySet()

Description copied from interface: Short2DoubleMap

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

This method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Map.entrySet() so that it returns an ObjectSet of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).

Specified by:

short2DoubleEntrySet in interface Short2DoubleMap

Specified by:

short2DoubleEntrySet in interface Short2DoubleSortedMap

Returns:

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

See Also:

• Map.entrySet()

keySet

public ShortSortedSet 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 Map<Short,Double>

Specified by:

keySet in interface Short2DoubleMap

Specified by:

keySet in interface Short2DoubleSortedMap

Specified by:

keySet in interface SortedMap<Short,Double>

Overrides:

keySet in class AbstractShort2DoubleSortedMap

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 Map<Short,Double>

Specified by:

values in interface Short2DoubleMap

Specified by:

values in interface Short2DoubleSortedMap

Specified by:

values in interface SortedMap<Short,Double>

Overrides:

values in class AbstractShort2DoubleSortedMap

Returns:

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

See Also:

• Map.values()

comparator

public ShortComparator comparator()

Description copied from interface: Short2DoubleSortedMap

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

Specified by:

comparator in interface Short2DoubleSortedMap

Specified by:

comparator in interface SortedMap<Short,Double>

See Also:

• SortedMap.comparator()

headMap

public Short2DoubleSortedMap headMap(short to)

Description copied from interface: Short2DoubleSortedMap

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

Specified by:

headMap in interface Short2DoubleSortedMap

See Also:

• SortedMap.headMap(Object)

tailMap

public Short2DoubleSortedMap tailMap(short from)

Description copied from interface: Short2DoubleSortedMap

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

Specified by:

tailMap in interface Short2DoubleSortedMap

See Also:

• SortedMap.tailMap(Object)

subMap

public Short2DoubleSortedMap subMap(short from,
 short to)

Description copied from interface: Short2DoubleSortedMap

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

Specified by:

subMap in interface Short2DoubleSortedMap

See Also:

• SortedMap.subMap(Object,Object)

clone

public Short2DoubleAVLTreeMap 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.