Package it.unimi.dsi.fastutil.chars
Class Char2CharMaps.EmptyMap
- java.lang.Object
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- it.unimi.dsi.fastutil.chars.AbstractChar2CharFunction
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- it.unimi.dsi.fastutil.chars.Char2CharFunctions.EmptyFunction
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- it.unimi.dsi.fastutil.chars.Char2CharMaps.EmptyMap
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- All Implemented Interfaces:
Char2CharFunction
,Char2CharMap
,Function<java.lang.Character,java.lang.Character>
,java.io.Serializable
,java.lang.Cloneable
,java.util.function.Function<java.lang.Character,java.lang.Character>
,java.util.function.IntUnaryOperator
,java.util.Map<java.lang.Character,java.lang.Character>
- Direct Known Subclasses:
Char2CharSortedMaps.EmptySortedMap
- Enclosing class:
- Char2CharMaps
public static class Char2CharMaps.EmptyMap extends Char2CharFunctions.EmptyFunction implements Char2CharMap, java.io.Serializable, java.lang.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
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Nested Class Summary
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Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.chars.Char2CharMap
Char2CharMap.Entry, Char2CharMap.FastEntrySet
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description ObjectSet<Char2CharMap.Entry>
char2CharEntrySet()
Returns a type-specific set view of the mappings contained in this map.java.lang.Object
clone()
boolean
containsValue(char v)
Returnstrue
if this map maps one or more keys to the specified value.boolean
containsValue(java.lang.Object ov)
Deprecated.Please use the corresponding type-specific method instead.boolean
equals(java.lang.Object o)
int
hashCode()
boolean
isEmpty()
CharSet
keySet()
void
putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Character> m)
java.lang.String
toString()
CharCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.chars.Char2CharFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
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Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2CharFunction
applyAsInt, get, put, remove
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Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2CharMap
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
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Method Detail
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containsValue
public boolean containsValue(char v)
Description copied from interface:Char2CharMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceChar2CharMap
- See Also:
Map.containsValue(Object)
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containsValue
@Deprecated public boolean containsValue(java.lang.Object ov)
Deprecated.Please use the corresponding type-specific method instead.- Specified by:
containsValue
in interfaceChar2CharMap
- Specified by:
containsValue
in interfacejava.util.Map<java.lang.Character,java.lang.Character>
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putAll
public void putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Character> m)
- Specified by:
putAll
in interfacejava.util.Map<java.lang.Character,java.lang.Character>
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char2CharEntrySet
public ObjectSet<Char2CharMap.Entry> char2CharEntrySet()
Description copied from interface:Char2CharMap
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 anObjectSet
of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).- Specified by:
char2CharEntrySet
in interfaceChar2CharMap
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public CharSet keySet()
Description copied from interface:Char2CharMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceChar2CharMap
- Specified by:
keySet
in interfacejava.util.Map<java.lang.Character,java.lang.Character>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public CharCollection values()
Description copied from interface:Char2CharMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceChar2CharMap
- Specified by:
values
in interfacejava.util.Map<java.lang.Character,java.lang.Character>
- Returns:
- a set view of the values contained in this map.
- See Also:
Map.values()
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clone
public java.lang.Object clone()
- Overrides:
clone
in classChar2CharFunctions.EmptyFunction
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isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interfacejava.util.Map<java.lang.Character,java.lang.Character>
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hashCode
public int hashCode()
- Specified by:
hashCode
in interfacejava.util.Map<java.lang.Character,java.lang.Character>
- Overrides:
hashCode
in classChar2CharFunctions.EmptyFunction
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equals
public boolean equals(java.lang.Object o)
- Specified by:
equals
in interfacejava.util.Map<java.lang.Character,java.lang.Character>
- Overrides:
equals
in classChar2CharFunctions.EmptyFunction
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toString
public java.lang.String toString()
- Overrides:
toString
in classChar2CharFunctions.EmptyFunction
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