Package it.unimi.dsi.fastutil.objects

Class Object2CharAVLTreeMap<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.AbstractObject2CharFunction<K>

it.unimi.dsi.fastutil.objects.AbstractObject2CharMap<K>

it.unimi.dsi.fastutil.objects.AbstractObject2CharSortedMap<K>

it.unimi.dsi.fastutil.objects.Object2CharAVLTreeMap<K>

All Implemented Interfaces:

Function<K,Character>, Object2CharFunction<K>, Object2CharMap<K>, Object2CharSortedMap<K>, Serializable, Cloneable, Function<K,Character>, ToIntFunction<K>, Map<K,Character>, SequencedMap<K,Character>, SortedMap<K,Character>

public class Object2CharAVLTreeMap<K>
extends AbstractObject2CharSortedMap<K>
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.objects.AbstractObject2CharMap

AbstractObject2CharMap.BasicEntry<K>, AbstractObject2CharMap.BasicEntrySet<K>

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2CharMap

Object2CharMap.FastEntrySet<K>

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2CharSortedMap

Object2CharSortedMap.FastSortedEntrySet<K>

Constructor Summary

Constructors

Constructor	Description
Object2CharAVLTreeMap()	Creates a new empty tree map.
Object2CharAVLTreeMap(Object2CharMap<? extends K> m)	Creates a new tree map copying a given map.
Object2CharAVLTreeMap(Object2CharSortedMap<K> m)	Creates a new tree map copying a given sorted map (and its Comparator).
Object2CharAVLTreeMap(Comparator<? super K> c)	Creates a new empty tree map with the given comparator.
Object2CharAVLTreeMap(Map<? extends K,? extends Character> m)	Creates a new tree map copying a given map.
Object2CharAVLTreeMap(SortedMap<K,Character> m)	Creates a new tree map copying a given sorted map (and its Comparator).
Object2CharAVLTreeMap(K[] k, char[] v)	Creates a new tree map using the elements of two parallel arrays.
Object2CharAVLTreeMap(K[] k, char[] v, Comparator<? super K> c)	Creates a new tree map using the elements of two parallel arrays and the given comparator.

Method Summary

Modifier and Type	Method	Description
char	addTo(K k, char incr)	Adds an increment to value currently associated with a key.
void	clear()	Removes all of the mappings from this map (optional operation).
Object2CharAVLTreeMap<K>	clone()	Returns a deep copy of this tree map.
Comparator<? super K>	comparator()	Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.
boolean	containsKey(Object k)	Returns true if this function contains a mapping for the specified key.
boolean	containsValue(char v)	Returns true if this map maps one or more keys to the specified value.
K	firstKey()
char	getChar(Object k)	Returns the value to which the given key is mapped.
Object2CharSortedMap<K>	headMap(K to)	Returns a view of the portion of this sorted map whose keys are strictly less than toKey.
boolean	isEmpty()
ObjectSortedSet<K>	keySet()	Returns a type-specific sorted set view of the keys contained in this map.
K	lastKey()
ObjectSortedSet<Object2CharMap.Entry<K>>	object2CharEntrySet()	Returns a type-specific sorted-set view of the mappings contained in this map.
char	put(K k, char v)	Adds a pair to the map (optional operation).
char	removeChar(Object k)	Removes the mapping with the given key (optional operation).
int	size()	Returns the number of key/value mappings in this map.
Object2CharSortedMap<K>	subMap(K from, K to)	Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
Object2CharSortedMap<K>	tailMap(K from)	Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
CharCollection	values()	Returns a type-specific collection view of the values contained in this map.

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2CharMap

equals, hashCode, putAll, toString

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2CharFunction

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.function.Function

compose

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, get, getOrDefault, hashCode, put, putAll, remove, replaceAll

Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2CharFunction

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

Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2CharMap

computeChar, computeCharIfAbsent, computeCharIfAbsentPartial, computeCharIfPresent, computeIfAbsent, computeIfAbsent, containsValue, defaultReturnValue, defaultReturnValue, forEach, get, getOrDefault, getOrDefault, merge, merge, mergeChar, mergeChar, mergeChar, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace

Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2CharSortedMap

entrySet

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

Object2CharAVLTreeMap

public Object2CharAVLTreeMap()

Creates a new empty tree map.

Object2CharAVLTreeMap

public Object2CharAVLTreeMap(Comparator<? super K> c)

Creates a new empty tree map with the given comparator.

Parameters:

c - a (possibly type-specific) comparator.

Object2CharAVLTreeMap

public Object2CharAVLTreeMap(Map<? extends K,? extends Character> m)

Creates a new tree map copying a given map.

Parameters:

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

Object2CharAVLTreeMap

public Object2CharAVLTreeMap(SortedMap<K,Character> 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.

Object2CharAVLTreeMap

public Object2CharAVLTreeMap(Object2CharMap<? extends K> m)

Creates a new tree map copying a given map.

Parameters:

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

Object2CharAVLTreeMap

public Object2CharAVLTreeMap(Object2CharSortedMap<K> 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.

Object2CharAVLTreeMap

public Object2CharAVLTreeMap(K[] k,
 char[] v,
 Comparator<? super K> 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.

Object2CharAVLTreeMap

public Object2CharAVLTreeMap(K[] k,
 char[] 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 char addTo(K k,
 char 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 char put(K k,
 char v)

Description copied from interface: Object2CharFunction

Adds a pair to the map (optional operation).

Specified by:

put in interface Object2CharFunction<K>

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)

removeChar

public char removeChar(Object k)

Description copied from interface: Object2CharFunction

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

Specified by:

removeChar in interface Object2CharFunction<K>

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(char v)

Description copied from class: AbstractObject2CharMap

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

Specified by:

containsValue in interface Object2CharMap<K>

Overrides:

containsValue in class AbstractObject2CharMap<K>

See Also:

• Map.containsValue(Object)

clear

public void clear()

Description copied from interface: Object2CharMap

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

Specified by:

clear in interface Function<K,Character>

Specified by:

clear in interface Map<K,Character>

Specified by:

clear in interface Object2CharMap<K>

See Also:

• Map.clear()

containsKey

public boolean containsKey(Object k)

Description copied from class: AbstractObject2CharMap

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

Specified by:

containsKey in interface Function<K,Character>

Specified by:

containsKey in interface Map<K,Character>

Specified by:

containsKey in interface Object2CharMap<K>

Overrides:

containsKey in class AbstractObject2CharMap<K>

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: Object2CharMap

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 Function<K,Character>

Specified by:

size in interface Map<K,Character>

Specified by:

size in interface Object2CharMap<K>

Returns:

the number of key-value mappings in this map.

See Also:

• Size64

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,Character>

Overrides:

isEmpty in class AbstractObject2CharMap<K>

getChar

public char getChar(Object k)

Description copied from interface: Object2CharFunction

Returns the value to which the given key is mapped.

Specified by:

getChar in interface Object2CharFunction<K>

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)

firstKey

public K firstKey()

Specified by:

firstKey in interface SortedMap<K,Character>

lastKey

public K lastKey()

Specified by:

lastKey in interface SortedMap<K,Character>

object2CharEntrySet

public ObjectSortedSet<Object2CharMap.Entry<K>> object2CharEntrySet()

Description copied from interface: Object2CharSortedMap

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

Specified by:

object2CharEntrySet in interface Object2CharMap<K>

Specified by:

object2CharEntrySet in interface Object2CharSortedMap<K>

Returns:

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

See Also:

• Object2CharSortedMap.entrySet()

keySet

public ObjectSortedSet<K> 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<K,Character>

Specified by:

keySet in interface Object2CharMap<K>

Specified by:

keySet in interface Object2CharSortedMap<K>

Specified by:

keySet in interface SortedMap<K,Character>

Overrides:

keySet in class AbstractObject2CharSortedMap<K>

Returns:

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

See Also:

• Map.keySet()

values

public CharCollection 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<K,Character>

Specified by:

values in interface Object2CharMap<K>

Specified by:

values in interface Object2CharSortedMap<K>

Specified by:

values in interface SortedMap<K,Character>

Overrides:

values in class AbstractObject2CharSortedMap<K>

Returns:

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

See Also:

• Map.values()

comparator

public Comparator<? super K> comparator()

Description copied from interface: Object2CharSortedMap

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

Specified by:

comparator in interface Object2CharSortedMap<K>

Specified by:

comparator in interface SortedMap<K,Character>

See Also:

• SortedMap.comparator()

headMap

public Object2CharSortedMap<K> headMap(K to)

Description copied from interface: Object2CharSortedMap

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

Specified by:

headMap in interface Object2CharSortedMap<K>

Specified by:

headMap in interface SortedMap<K,Character>

See Also:

• SortedMap.headMap(Object)

tailMap

public Object2CharSortedMap<K> tailMap(K from)

Description copied from interface: Object2CharSortedMap

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

Specified by:

tailMap in interface Object2CharSortedMap<K>

Specified by:

tailMap in interface SortedMap<K,Character>

See Also:

• SortedMap.tailMap(Object)

subMap

public Object2CharSortedMap<K> subMap(K from,
 K to)

Description copied from interface: Object2CharSortedMap

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

Specified by:

subMap in interface Object2CharSortedMap<K>

Specified by:

subMap in interface SortedMap<K,Character>

See Also:

• SortedMap.subMap(Object,Object)

clone

public Object2CharAVLTreeMap<K> 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.