it.unimi.dsi.fastutil.floats
Class Float2ObjectRBTreeMap<V>

java.lang.Object
  extended by it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectFunction<V>
      extended by it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectMap<V>
          extended by it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectSortedMap<V>
              extended by it.unimi.dsi.fastutil.floats.Float2ObjectRBTreeMap<V>
All Implemented Interfaces:
Float2ObjectFunction<V>, Float2ObjectMap<V>, Float2ObjectSortedMap<V>, Function<Float,V>, Serializable, Cloneable, Map<Float,V>, SortedMap<Float,V>

public class Float2ObjectRBTreeMap<V>
extends AbstractFloat2ObjectSortedMap<V>
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.floats.AbstractFloat2ObjectSortedMap
AbstractFloat2ObjectSortedMap.KeySetIterator<V>, AbstractFloat2ObjectSortedMap.ValuesCollection, AbstractFloat2ObjectSortedMap.ValuesIterator<V>
 
Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectMap
AbstractFloat2ObjectMap.BasicEntry<V>
 
Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.floats.Float2ObjectSortedMap
Float2ObjectSortedMap.FastSortedEntrySet<V>
 
Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.floats.Float2ObjectMap
Float2ObjectMap.FastEntrySet<V>
 
Field Summary
protected  FloatComparator 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<Float2ObjectMap.Entry<V>> entries
          Cached set of entries.
protected  it.unimi.dsi.fastutil.floats.Float2ObjectRBTreeMap.Entry<V> firstEntry
          The first key in this map.
protected  FloatSortedSet keys
          Cached set of keys.
protected  it.unimi.dsi.fastutil.floats.Float2ObjectRBTreeMap.Entry<V> 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.
static long serialVersionUID
           
protected  Comparator<? super Float> storedComparator
          This map's comparator, as provided in the constructor.
protected  it.unimi.dsi.fastutil.floats.Float2ObjectRBTreeMap.Entry<V> tree
          A reference to the root entry.
protected  ObjectCollection<V> values
          Cached collection of values.
 
Fields inherited from class it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectFunction
defRetValue
 
Constructor Summary
Float2ObjectRBTreeMap()
          Creates a new empty tree map.
Float2ObjectRBTreeMap(Comparator<? super Float> c)
          Creates a new empty tree map with the given comparator.
Float2ObjectRBTreeMap(float[] k, V[] v)
          Creates a new tree map using the elements of two parallel arrays.
Float2ObjectRBTreeMap(float[] k, V[] v, Comparator<? super Float> c)
          Creates a new tree map using the elements of two parallel arrays and the given comparator.
Float2ObjectRBTreeMap(Float2ObjectMap<? extends V> m)
          Creates a new tree map copying a given map.
Float2ObjectRBTreeMap(Float2ObjectSortedMap<V> m)
          Creates a new tree map copying a given sorted map (and its Comparator).
Float2ObjectRBTreeMap(Map<? extends Float,? extends V> m)
          Creates a new tree map copying a given map.
Float2ObjectRBTreeMap(SortedMap<Float,V> m)
          Creates a new tree map copying a given sorted map (and its Comparator).
 
Method Summary
 void clear()
          Removes all associations from this function (optional operation).
 Float2ObjectRBTreeMap<V> clone()
          Returns a deep copy of this tree map.
 FloatComparator comparator()
          Returns the comparator associated with this sorted set, or null if it uses its keys' natural ordering.
 boolean containsKey(float k)
          Checks whether the given value is contained in AbstractFloat2ObjectMap.keySet().
 boolean containsValue(Object v)
          Checks whether the given value is contained in AbstractFloat2ObjectMap.values().
 float firstFloatKey()
           
 ObjectSortedSet<Float2ObjectMap.Entry<V>> float2ObjectEntrySet()
          Returns a type-specific sorted-set view of the mappings contained in this map.
 V get(float k)
          Returns the value to which the given key is mapped.
 Float2ObjectSortedMap<V> headMap(float to)
          Returns a view of the portion of this sorted map whose keys are strictly less than toKey.
 boolean isEmpty()
           
 FloatSortedSet keySet()
          Returns a type-specific sorted set view of the keys contained in this map.
 float lastFloatKey()
           
 V put(float k, V v)
          Adds a pair to the map.
 V put(Float ok, V ov)
          Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
 V remove(float k)
          Removes the mapping with the given key.
 V remove(Object ok)
          Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
 int size()
          Returns the intended number of keys in this function, or -1 if no such number exists.
 Float2ObjectSortedMap<V> subMap(float from, float to)
          Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
 Float2ObjectSortedMap<V> tailMap(float from)
          Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
 ObjectCollection<V> values()
          Returns a type-specific collection view of the values contained in this map.
 
Methods inherited from class it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectSortedMap
entrySet, firstKey, headMap, lastKey, subMap, tailMap
 
Methods inherited from class it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectMap
equals, hashCode, putAll, toString
 
Methods inherited from class it.unimi.dsi.fastutil.floats.AbstractFloat2ObjectFunction
containsKey, defaultReturnValue, defaultReturnValue, get
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface it.unimi.dsi.fastutil.floats.Float2ObjectFunction
defaultReturnValue, defaultReturnValue
 
Methods inherited from interface it.unimi.dsi.fastutil.Function
containsKey, get
 
Methods inherited from interface java.util.Map
containsKey, equals, get, hashCode, putAll
 

Field Detail

tree

protected transient it.unimi.dsi.fastutil.floats.Float2ObjectRBTreeMap.Entry<V> tree
A reference to the root entry.


count

protected int count
Number of entries in this map.


firstEntry

protected transient it.unimi.dsi.fastutil.floats.Float2ObjectRBTreeMap.Entry<V> firstEntry
The first key in this map.


lastEntry

protected transient it.unimi.dsi.fastutil.floats.Float2ObjectRBTreeMap.Entry<V> lastEntry
The last key in this map.


entries

protected transient volatile ObjectSortedSet<Float2ObjectMap.Entry<V>> entries
Cached set of entries.


keys

protected transient volatile FloatSortedSet keys
Cached set of keys.


values

protected transient volatile ObjectCollection<V> 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 Float> storedComparator
This map's comparator, as provided in the constructor.


actualComparator

protected transient FloatComparator 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.


serialVersionUID

public static final long serialVersionUID
See Also:
Constant Field Values
Constructor Detail

Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap()
Creates a new empty tree map.


Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap(Comparator<? super Float> c)
Creates a new empty tree map with the given comparator.

Parameters:
c - a (possibly type-specific) comparator.

Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap(Map<? extends Float,? extends V> m)
Creates a new tree map copying a given map.

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

Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap(SortedMap<Float,V> 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.

Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap(Float2ObjectMap<? extends V> m)
Creates a new tree map copying a given map.

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

Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap(Float2ObjectSortedMap<V> 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.

Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap(float[] k,
                             V[] v,
                             Comparator<? super Float> 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.

Float2ObjectRBTreeMap

public Float2ObjectRBTreeMap(float[] k,
                             V[] 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

put

public V put(float k,
             V v)
Description copied from interface: Float2ObjectFunction
Adds a pair to the map.

Specified by:
put in interface Float2ObjectFunction<V>
Overrides:
put in class AbstractFloat2ObjectFunction<V>
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 V remove(float k)
Description copied from interface: Float2ObjectFunction
Removes the mapping with the given key.

Specified by:
remove in interface Float2ObjectFunction<V>
Overrides:
remove in class AbstractFloat2ObjectFunction<V>
Returns:
the old value, or the default return value if no value was present for the given key.
See Also:
Function.remove(Object)

put

public V put(Float ok,
             V ov)
Description copied from class: AbstractFloat2ObjectFunction
Delegates to the corresponding type-specific method, taking care of returning null on a missing key.

This method must check whether the provided key is in the map using containsKey(). Thus, it probes the map twice. Implementors of subclasses should override it with a more efficient method.

Specified by:
put in interface Function<Float,V>
Specified by:
put in interface Map<Float,V>
Overrides:
put in class AbstractFloat2ObjectFunction<V>
Parameters:
ok - the key.
ov - the value.
Returns:
the old value, or null if no value was present for the given key.
See Also:
Map.put(Object,Object)

remove

public V remove(Object ok)
Description copied from class: AbstractFloat2ObjectFunction
Delegates to the corresponding type-specific method, taking care of returning null on a missing key.

This method must check whether the provided key is in the map using containsKey(). Thus, it probes the map twice. Implementors of subclasses should override it with a more efficient method.

Specified by:
remove in interface Function<Float,V>
Specified by:
remove in interface Map<Float,V>
Overrides:
remove in class AbstractFloat2ObjectFunction<V>
Returns:
the old value, or null if no value was present for the given key.
See Also:
Map.remove(Object)

containsValue

public boolean containsValue(Object v)
Description copied from class: AbstractFloat2ObjectMap
Checks whether the given value is contained in AbstractFloat2ObjectMap.values().

Specified by:
containsValue in interface Map<Float,V>
Overrides:
containsValue in class AbstractFloat2ObjectMap<V>

clear

public void clear()
Description copied from interface: Function
Removes all associations from this function (optional operation).

Specified by:
clear in interface Function<Float,V>
Specified by:
clear in interface Map<Float,V>
Overrides:
clear in class AbstractFloat2ObjectFunction<V>
See Also:
Map.clear()

containsKey

public boolean containsKey(float k)
Description copied from class: AbstractFloat2ObjectMap
Checks whether the given value is contained in AbstractFloat2ObjectMap.keySet().

Specified by:
containsKey in interface Float2ObjectFunction<V>
Overrides:
containsKey in class AbstractFloat2ObjectMap<V>
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.

Specified by:
size in interface Function<Float,V>
Specified by:
size in interface Map<Float,V>
Returns:
the intended number of keys in this function, or -1 if that number is not available.

isEmpty

public boolean isEmpty()
Specified by:
isEmpty in interface Map<Float,V>
Overrides:
isEmpty in class AbstractFloat2ObjectMap<V>

get

public V get(float k)
Description copied from interface: Float2ObjectFunction
Returns the value to which the given key is mapped.

Specified by:
get in interface Float2ObjectFunction<V>
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)

firstFloatKey

public float firstFloatKey()
Specified by:
firstFloatKey in interface Float2ObjectSortedMap<V>
See Also:
SortedMap.firstKey()

lastFloatKey

public float lastFloatKey()
Specified by:
lastFloatKey in interface Float2ObjectSortedMap<V>
See Also:
SortedMap.lastKey()

float2ObjectEntrySet

public ObjectSortedSet<Float2ObjectMap.Entry<V>> float2ObjectEntrySet()
Description copied from interface: Float2ObjectSortedMap
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:
float2ObjectEntrySet in interface Float2ObjectMap<V>
Specified by:
float2ObjectEntrySet in interface Float2ObjectSortedMap<V>
Returns:
a type-specific sorted-set view of the mappings contained in this map.
See Also:
Float2ObjectSortedMap.entrySet()

keySet

public FloatSortedSet 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 Float2ObjectMap<V>
Specified by:
keySet in interface Float2ObjectSortedMap<V>
Specified by:
keySet in interface Map<Float,V>
Specified by:
keySet in interface SortedMap<Float,V>
Overrides:
keySet in class AbstractFloat2ObjectSortedMap<V>
Returns:
a type-specific sorted set view of the keys contained in this map.
See Also:
Map.keySet()

values

public ObjectCollection<V> 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 Float2ObjectMap<V>
Specified by:
values in interface Float2ObjectSortedMap<V>
Specified by:
values in interface Map<Float,V>
Specified by:
values in interface SortedMap<Float,V>
Overrides:
values in class AbstractFloat2ObjectSortedMap<V>
Returns:
a type-specific collection view of the values contained in this map.
See Also:
Map.values()

comparator

public FloatComparator comparator()
Description copied from interface: Float2ObjectSortedMap
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 Float2ObjectSortedMap<V>
Specified by:
comparator in interface SortedMap<Float,V>
See Also:
SortedMap.comparator()

headMap

public Float2ObjectSortedMap<V> headMap(float to)
Description copied from interface: Float2ObjectSortedMap
Returns a view of the portion of this sorted map whose keys are strictly less than toKey.

Specified by:
headMap in interface Float2ObjectSortedMap<V>
See Also:
SortedMap.headMap(Object)

tailMap

public Float2ObjectSortedMap<V> tailMap(float from)
Description copied from interface: Float2ObjectSortedMap
Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.

Specified by:
tailMap in interface Float2ObjectSortedMap<V>
See Also:
SortedMap.tailMap(Object)

subMap

public Float2ObjectSortedMap<V> subMap(float from,
                                       float to)
Description copied from interface: Float2ObjectSortedMap
Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.

Specified by:
subMap in interface Float2ObjectSortedMap<V>
See Also:
SortedMap.subMap(Object,Object)

clone

public Float2ObjectRBTreeMap<V> 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.


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