Package it.unimi.dsi.fastutil.objects

Class Object2ByteRBTreeMap<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.AbstractObject2ByteFunction<K>

it.unimi.dsi.fastutil.objects.AbstractObject2ByteMap<K>

it.unimi.dsi.fastutil.objects.AbstractObject2ByteSortedMap<K>

it.unimi.dsi.fastutil.objects.Object2ByteRBTreeMap<K>

All Implemented Interfaces:

Function<K,Byte>, Object2ByteFunction<K>, Object2ByteMap<K>, Object2ByteSortedMap<K>, Serializable, Cloneable, Function<K,Byte>, ToIntFunction<K>, Map<K,Byte>, SortedMap<K,Byte>

public class Object2ByteRBTreeMap<K>
extends AbstractObject2ByteSortedMap<K>
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.objects.AbstractObject2ByteMap

AbstractObject2ByteMap.BasicEntry<K>, AbstractObject2ByteMap.BasicEntrySet<K>

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2ByteMap

Object2ByteMap.FastEntrySet<K>

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2ByteSortedMap

Object2ByteSortedMap.FastSortedEntrySet<K>

Constructor Summary

Constructors

Constructor	Description
Object2ByteRBTreeMap()	Creates a new empty tree map.
Object2ByteRBTreeMap(Object2ByteMap<? extends K> m)	Creates a new tree map copying a given map.
Object2ByteRBTreeMap(Object2ByteSortedMap<K> m)	Creates a new tree map copying a given sorted map (and its Comparator).
Object2ByteRBTreeMap(Comparator<? super K> c)	Creates a new empty tree map with the given comparator.
Object2ByteRBTreeMap(Map<? extends K,? extends Byte> m)	Creates a new tree map copying a given map.
Object2ByteRBTreeMap(SortedMap<K,Byte> m)	Creates a new tree map copying a given sorted map (and its Comparator).
Object2ByteRBTreeMap(K[] k, byte[] v)	Creates a new tree map using the elements of two parallel arrays.
Object2ByteRBTreeMap(K[] k, byte[] 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
byte	addTo(K k, byte incr)	Adds an increment to value currently associated with a key.
void	clear()	Removes all of the mappings from this map (optional operation).
Object2ByteRBTreeMap<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(byte v)	Returns true if this map maps one or more keys to the specified value.
K	firstKey()
byte	getByte(Object k)	Returns the value to which the given key is mapped.
Object2ByteSortedMap<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<Object2ByteMap.Entry<K>>	object2ByteEntrySet()	Returns a type-specific sorted-set view of the mappings contained in this map.
byte	put(K k, byte v)	Adds a pair to the map (optional operation).
byte	removeByte(Object k)	Removes the mapping with the given key (optional operation).
int	size()	Returns the number of key/value mappings in this map.
Object2ByteSortedMap<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.
Object2ByteSortedMap<K>	tailMap(K from)	Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
ByteCollection	values()	Returns a type-specific collection view of the values contained in this map.

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2ByteMap

equals, hashCode, putAll, toString

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2ByteFunction

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

andThen, compose

Methods inherited from interface java.util.Map

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

Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2ByteFunction

applyAsInt

Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2ByteMap

computeByte, computeByteIfAbsent, computeByteIfAbsentPartial, computeByteIfPresent, containsValue, defaultReturnValue, defaultReturnValue, get, getOrDefault, getOrDefault, merge, mergeByte, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace

Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2ByteSortedMap

entrySet

Constructor Detail

Object2ByteRBTreeMap

public Object2ByteRBTreeMap()

Creates a new empty tree map.

Object2ByteRBTreeMap

public Object2ByteRBTreeMap(Comparator<? super K> c)

Creates a new empty tree map with the given comparator.

Parameters:

c - a (possibly type-specific) comparator.

Object2ByteRBTreeMap

public Object2ByteRBTreeMap(Map<? extends K,? extends Byte> m)

Creates a new tree map copying a given map.

Parameters:

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

Object2ByteRBTreeMap

public Object2ByteRBTreeMap(SortedMap<K,Byte> 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.

Object2ByteRBTreeMap

public Object2ByteRBTreeMap(Object2ByteMap<? 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.

Object2ByteRBTreeMap

public Object2ByteRBTreeMap(Object2ByteSortedMap<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.

Object2ByteRBTreeMap

public Object2ByteRBTreeMap(K[] k,
                            byte[] 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.

Object2ByteRBTreeMap

public Object2ByteRBTreeMap(K[] k,
                            byte[] 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 byte addTo(K k,
                  byte 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 byte put(K k,
                byte v)

Description copied from interface: Object2ByteFunction

Adds a pair to the map (optional operation).

Specified by:

put in interface Object2ByteFunction<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)

removeByte

public byte removeByte(Object k)

Description copied from interface: Object2ByteFunction

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

Specified by:

removeByte in interface Object2ByteFunction<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(byte v)

Description copied from interface: Object2ByteMap

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

Specified by:

containsValue in interface Object2ByteMap<K>

Overrides:

containsValue in class AbstractObject2ByteMap<K>

See Also:

Map.containsValue(Object)

clear

public void clear()

Description copied from interface: Object2ByteMap

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,Byte>

Specified by:

clear in interface Map<K,Byte>

Specified by:

clear in interface Object2ByteMap<K>

See Also:

Map.clear()

containsKey

public boolean containsKey(Object k)

Description copied from interface: Object2ByteMap

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

Specified by:

containsKey in interface Function<K,Byte>

Specified by:

containsKey in interface Map<K,Byte>

Specified by:

containsKey in interface Object2ByteMap<K>

Overrides:

containsKey in class AbstractObject2ByteMap<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: Object2ByteMap

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,Byte>

Specified by:

size in interface Map<K,Byte>

Specified by:

size in interface Object2ByteMap<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,Byte>

Overrides:

isEmpty in class AbstractObject2ByteMap<K>

getByte

public byte getByte(Object k)

Description copied from interface: Object2ByteFunction

Returns the value to which the given key is mapped.

Specified by:

getByte in interface Object2ByteFunction<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,Byte>

lastKey

public K lastKey()

Specified by:

lastKey in interface SortedMap<K,Byte>

object2ByteEntrySet

public ObjectSortedSet<Object2ByteMap.Entry<K>> object2ByteEntrySet()

Description copied from interface: Object2ByteSortedMap

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:

object2ByteEntrySet in interface Object2ByteMap<K>

Specified by:

object2ByteEntrySet in interface Object2ByteSortedMap<K>

Returns:

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

See Also:

Object2ByteSortedMap.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,Byte>

Specified by:

keySet in interface Object2ByteMap<K>

Specified by:

keySet in interface Object2ByteSortedMap<K>

Specified by:

keySet in interface SortedMap<K,Byte>

Overrides:

keySet in class AbstractObject2ByteSortedMap<K>

Returns:

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

See Also:

Map.keySet()

values

public ByteCollection 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,Byte>

Specified by:

values in interface Object2ByteMap<K>

Specified by:

values in interface Object2ByteSortedMap<K>

Specified by:

values in interface SortedMap<K,Byte>

Overrides:

values in class AbstractObject2ByteSortedMap<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: Object2ByteSortedMap

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 Object2ByteSortedMap<K>

Specified by:

comparator in interface SortedMap<K,Byte>

See Also:

SortedMap.comparator()

headMap

public Object2ByteSortedMap<K> headMap(K to)

Description copied from interface: Object2ByteSortedMap

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 Object2ByteSortedMap<K>

Specified by:

headMap in interface SortedMap<K,Byte>

See Also:

SortedMap.headMap(Object)

tailMap

public Object2ByteSortedMap<K> tailMap(K from)

Description copied from interface: Object2ByteSortedMap

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 Object2ByteSortedMap<K>

Specified by:

tailMap in interface SortedMap<K,Byte>

See Also:

SortedMap.tailMap(Object)

subMap

public Object2ByteSortedMap<K> subMap(K from,
                                      K to)

Description copied from interface: Object2ByteSortedMap

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 Object2ByteSortedMap<K>

Specified by:

subMap in interface SortedMap<K,Byte>

See Also:

SortedMap.subMap(Object,Object)

clone

public Object2ByteRBTreeMap<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.