it.unimi.dsi.fastutil.chars.Char2ReferenceMaps.EmptyMap<V>

All Implemented Interfaces:: Char2ReferenceFunction<V>, Char2ReferenceMap<V>, Function<Character,V>, Serializable, Cloneable, Function<Character,V>, IntFunction<V>, Map<Character,V>

Direct Known Subclasses:: Char2ReferenceSortedMaps.EmptySortedMap

Enclosing class:: Char2ReferenceMaps

public static class Char2ReferenceMaps.EmptyMap<V>
extends Char2ReferenceFunctions.EmptyFunction<V>
implements Char2ReferenceMap<V>, Serializable, Cloneable

An immutable class representing an empty type-specific map.

This class may be useful to implement your own in case you subclass a type-specific map.

See Also:: Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.chars.Char2ReferenceMap
Char2ReferenceMap.Entry<V>, Char2ReferenceMap.FastEntrySet<V>

Method Summary

Modifier and Type	Method	Description
`ObjectSet<Char2ReferenceMap.Entry<V>>`	`char2ReferenceEntrySet()`	Returns a type-specific set view of the mappings contained in this map.
`Object`	`clone()`
`boolean`	`containsValue(Object v)`
`boolean`	`equals(Object o)`
`int`	`hashCode()`
`boolean`	`isEmpty()`
`CharSet`	`keySet()`
`void`	`putAll(Map<? extends Character,? extends V> m)`
`String`	`toString()`
`ReferenceCollection<V>`	`values()`

Methods inherited from class it.unimi.dsi.fastutil.chars.Char2ReferenceFunctions.EmptyFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, size

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2ReferenceFunction

apply, get, put, remove

Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2ReferenceMap

clear, compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsKey, defaultReturnValue, defaultReturnValue, entrySet, get, getOrDefault, getOrDefault, merge, merge, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace, size

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

forEach, replaceAll

Method Details
- containsValue
  
  public boolean containsValue(Object v)
  
  Specified by:
  
  containsValue in interface Map<Character,V>
- putAll
  
  public void putAll(Map<? extends Character,? extends V> m)
  
  Specified by:
  
  putAll in interface Map<Character,V>
- char2ReferenceEntrySet
  
  public ObjectSet<Char2ReferenceMap.Entry<V>> char2ReferenceEntrySet()
  
  Description copied from interface: Char2ReferenceMap
  
  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:
  
  char2ReferenceEntrySet in interface Char2ReferenceMap<V>
  
  Returns:
  
  a type-specific set view of the mappings contained in this map.
  
  See Also:
  
  Map.entrySet()
- keySet
  
  public CharSet keySet()
  
  Description copied from interface: Char2ReferenceMap
  
  Note that this specification strengthens the one given in Map.keySet().
  
  Specified by:
  
  keySet in interface Char2ReferenceMap<V>
  
  Specified by:
  
  keySet in interface Map<Character,V>
  
  Returns:
  
  a set view of the keys contained in this map.
  
  See Also:
  
  Map.keySet()
- values
  
  public ReferenceCollection<V> values()
  
  Description copied from interface: Char2ReferenceMap
  
  Note that this specification strengthens the one given in Map.values().
  
  Specified by:
  
  values in interface Char2ReferenceMap<V>
  
  Specified by:
  
  values in interface Map<Character,V>
  
  Returns:
  
  a set view of the values contained in this map.
  
  See Also:
  
  Map.values()
- clone
  
  public Object clone()
  
  Overrides:
  
  clone in class Char2ReferenceFunctions.EmptyFunction<V>
- isEmpty
  
  public boolean isEmpty()
  
  Specified by:
  
  isEmpty in interface Map<Character,V>
- hashCode
  
  public int hashCode()
  
  Specified by:
  
  hashCode in interface Map<Character,V>
  
  Overrides:
  
  hashCode in class Char2ReferenceFunctions.EmptyFunction<V>
- equals
  
  public boolean equals(Object o)
  
  Specified by:
  
  equals in interface Map<Character,V>
  
  Overrides:
  
  equals in class Char2ReferenceFunctions.EmptyFunction<V>
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Char2ReferenceFunctions.EmptyFunction<V>

Class Char2ReferenceMaps.EmptyMap<V>

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.chars.Char2ReferenceMap