Package it.unimi.dsi.fastutil.objects
Class Object2CharMaps.EmptyMap<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.AbstractObject2CharFunction<K>
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- it.unimi.dsi.fastutil.objects.Object2CharFunctions.EmptyFunction<K>
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- it.unimi.dsi.fastutil.objects.Object2CharMaps.EmptyMap<K>
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- All Implemented Interfaces:
Function<K,java.lang.Character>
,Object2CharFunction<K>
,Object2CharMap<K>
,java.io.Serializable
,java.lang.Cloneable
,java.util.function.Function<K,java.lang.Character>
,java.util.function.ToIntFunction<K>
,java.util.Map<K,java.lang.Character>
- Direct Known Subclasses:
Object2CharSortedMaps.EmptySortedMap
- Enclosing class:
- Object2CharMaps
public static class Object2CharMaps.EmptyMap<K> extends Object2CharFunctions.EmptyFunction<K> implements Object2CharMap<K>, 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.objects.Object2CharMap
Object2CharMap.Entry<K>, Object2CharMap.FastEntrySet<K>
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description 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)
void
forEach(java.util.function.BiConsumer<? super K,? super java.lang.Character> consumer)
char
getOrDefault(java.lang.Object key, char defaultValue)
Returns the value associated by this function to the specified key, or give the specified value if not present.java.lang.Character
getOrDefault(java.lang.Object key, java.lang.Character defaultValue)
Deprecated.int
hashCode()
boolean
isEmpty()
ObjectSet<K>
keySet()
ObjectSet<Object2CharMap.Entry<K>>
object2CharEntrySet()
Returns a type-specific set view of the mappings contained in this map.void
putAll(java.util.Map<? extends K,? extends java.lang.Character> m)
java.lang.String
toString()
CharCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.objects.Object2CharFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, getChar, size
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Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, replaceAll
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2CharFunction
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, getChar, put, removeChar
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2CharMap
clear, computeChar, computeCharIfAbsent, computeCharIfAbsentPartial, computeCharIfPresent, computeIfAbsent, computeIfAbsent, containsKey, defaultReturnValue, defaultReturnValue, entrySet, get, merge, merge, mergeChar, mergeChar, mergeChar, 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:Object2CharMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceObject2CharMap<K>
- See Also:
Map.containsValue(Object)
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getOrDefault
@Deprecated public java.lang.Character getOrDefault(java.lang.Object key, java.lang.Character defaultValue)
Deprecated.Description copied from interface:Object2CharMap
Returns the value associated by this function to the specified key, or give the specified value if not present.This default implementation just delegates to the corresponding
Map
method.- Specified by:
getOrDefault
in interfaceFunction<K,java.lang.Character>
- Specified by:
getOrDefault
in interfacejava.util.Map<K,java.lang.Character>
- Specified by:
getOrDefault
in interfaceObject2CharFunction<K>
- Specified by:
getOrDefault
in interfaceObject2CharMap<K>
- Parameters:
key
- the key.defaultValue
- the default value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Map.getOrDefault(Object, Object)
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getOrDefault
public char getOrDefault(java.lang.Object key, char defaultValue)
Description copied from interface:Object2CharFunction
Returns the value associated by this function to the specified key, or give the specified value if not present.- Specified by:
getOrDefault
in interfaceObject2CharFunction<K>
- Specified by:
getOrDefault
in interfaceObject2CharMap<K>
- Overrides:
getOrDefault
in classObject2CharFunctions.EmptyFunction<K>
- Parameters:
key
- the key.defaultValue
- the value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Function.getOrDefault(Object, 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 interfacejava.util.Map<K,java.lang.Character>
- Specified by:
containsValue
in interfaceObject2CharMap<K>
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putAll
public void putAll(java.util.Map<? extends K,? extends java.lang.Character> m)
- Specified by:
putAll
in interfacejava.util.Map<K,java.lang.Character>
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object2CharEntrySet
public ObjectSet<Object2CharMap.Entry<K>> object2CharEntrySet()
Description copied from interface:Object2CharMap
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:
object2CharEntrySet
in interfaceObject2CharMap<K>
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public ObjectSet<K> keySet()
Description copied from interface:Object2CharMap
- Specified by:
keySet
in interfacejava.util.Map<K,java.lang.Character>
- Specified by:
keySet
in interfaceObject2CharMap<K>
- 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:Object2CharMap
- Specified by:
values
in interfacejava.util.Map<K,java.lang.Character>
- Specified by:
values
in interfaceObject2CharMap<K>
- Returns:
- a set view of the values contained in this map.
- See Also:
Map.values()
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forEach
public void forEach(java.util.function.BiConsumer<? super K,? super java.lang.Character> consumer)
- Specified by:
forEach
in interfacejava.util.Map<K,java.lang.Character>
- Specified by:
forEach
in interfaceObject2CharMap<K>
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clone
public java.lang.Object clone()
- Overrides:
clone
in classObject2CharFunctions.EmptyFunction<K>
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isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interfacejava.util.Map<K,java.lang.Character>
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hashCode
public int hashCode()
- Specified by:
hashCode
in interfacejava.util.Map<K,java.lang.Character>
- Overrides:
hashCode
in classObject2CharFunctions.EmptyFunction<K>
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equals
public boolean equals(java.lang.Object o)
- Specified by:
equals
in interfacejava.util.Map<K,java.lang.Character>
- Overrides:
equals
in classObject2CharFunctions.EmptyFunction<K>
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toString
public java.lang.String toString()
- Overrides:
toString
in classObject2CharFunctions.EmptyFunction<K>
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