it.unimi.dsi.fastutil.chars.Char2IntMaps.EmptyMap

All Implemented Interfaces:: Char2IntFunction, Char2IntMap, Function<Character,Integer>, Serializable, Cloneable, Function<Character,Integer>, IntUnaryOperator, Map<Character,Integer>

Direct Known Subclasses:: Char2IntSortedMaps.EmptySortedMap

Enclosing class:: Char2IntMaps

public static class Char2IntMaps.EmptyMap
extends Char2IntFunctions.EmptyFunction
implements Char2IntMap, 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.Char2IntMap
Char2IntMap.Entry, Char2IntMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
`ObjectSet<Char2IntMap.Entry>`	`char2IntEntrySet()`	Returns a type-specific set view of the mappings contained in this map.
`Object`	`clone()`
`boolean`	`containsValue(int v)`	Returns `true` if this map maps one or more keys to the specified value.
`boolean`	`containsValue(Object ov)`	Deprecated. Please use the corresponding type-specific method instead.
`boolean`	`equals(Object o)`
`int`	`hashCode()`
`boolean`	`isEmpty()`
`CharSet`	`keySet()`
`void`	`putAll(Map<? extends Character,? extends Integer> m)`
`String`	`toString()`
`IntCollection`	`values()`

Methods inherited from class it.unimi.dsi.fastutil.chars.Char2IntFunctions.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.Char2IntFunction

applyAsInt, get, put, remove

Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2IntMap

clear, compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsentNullable, 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.function.IntUnaryOperator

andThen, compose

Methods inherited from interface java.util.Map

forEach, replaceAll

Method Details
- containsValue
  
  public boolean containsValue(int v)
  
  Description copied from interface: Char2IntMap
  
  Returns true if this map maps one or more keys to the specified value.
  
  Specified by:
  
  containsValue in interface Char2IntMap
  
  See Also:
  
  Map.containsValue(Object)
- containsValue
  
  @Deprecated public boolean containsValue(Object ov)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  containsValue in interface Char2IntMap
  
  Specified by:
  
  containsValue in interface Map<Character,Integer>
- putAll
  
  public void putAll(Map<? extends Character,? extends Integer> m)
  
  Specified by:
  
  putAll in interface Map<Character,Integer>
- char2IntEntrySet
  
  public ObjectSet<Char2IntMap.Entry> char2IntEntrySet()
  
  Description copied from interface: Char2IntMap
  
  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:
  
  char2IntEntrySet in interface Char2IntMap
  
  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: Char2IntMap
  
  Note that this specification strengthens the one given in Map.keySet().
  
  Specified by:
  
  keySet in interface Char2IntMap
  
  Specified by:
  
  keySet in interface Map<Character,Integer>
  
  Returns:
  
  a set view of the keys contained in this map.
  
  See Also:
  
  Map.keySet()
- values
  
  public IntCollection values()
  
  Description copied from interface: Char2IntMap
  
  Note that this specification strengthens the one given in Map.values().
  
  Specified by:
  
  values in interface Char2IntMap
  
  Specified by:
  
  values in interface Map<Character,Integer>
  
  Returns:
  
  a set view of the values contained in this map.
  
  See Also:
  
  Map.values()
- clone
  
  public Object clone()
  
  Overrides:
  
  clone in class Char2IntFunctions.EmptyFunction
- isEmpty
  
  public boolean isEmpty()
  
  Specified by:
  
  isEmpty in interface Map<Character,Integer>
- hashCode
  
  public int hashCode()
  
  Specified by:
  
  hashCode in interface Map<Character,Integer>
  
  Overrides:
  
  hashCode in class Char2IntFunctions.EmptyFunction
- equals
  
  public boolean equals(Object o)
  
  Specified by:
  
  equals in interface Map<Character,Integer>
  
  Overrides:
  
  equals in class Char2IntFunctions.EmptyFunction
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Char2IntFunctions.EmptyFunction

Class Char2IntMaps.EmptyMap

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.chars.Char2IntMap