Package it.unimi.dsi.fastutil.objects
Class Object2BooleanMaps.EmptyMap<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.AbstractObject2BooleanFunction<K>
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- it.unimi.dsi.fastutil.objects.Object2BooleanFunctions.EmptyFunction<K>
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- it.unimi.dsi.fastutil.objects.Object2BooleanMaps.EmptyMap<K>
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- All Implemented Interfaces:
Function<K,Boolean>
,Object2BooleanFunction<K>
,Object2BooleanMap<K>
,Serializable
,Cloneable
,Function<K,Boolean>
,Predicate<K>
,Map<K,Boolean>
- Direct Known Subclasses:
Object2BooleanSortedMaps.EmptySortedMap
- Enclosing class:
- Object2BooleanMaps
public static class Object2BooleanMaps.EmptyMap<K> extends Object2BooleanFunctions.EmptyFunction<K> implements Object2BooleanMap<K>, 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
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Nested Class Summary
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Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2BooleanMap
Object2BooleanMap.Entry<K>, Object2BooleanMap.FastEntrySet<K>
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description Object
clone()
boolean
containsValue(boolean v)
Returnstrue
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()
ObjectSet<K>
keySet()
ObjectSet<Object2BooleanMap.Entry<K>>
object2BooleanEntrySet()
Returns a type-specific set view of the mappings contained in this map.void
putAll(Map<? extends K,? extends Boolean> m)
String
toString()
BooleanCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.objects.Object2BooleanFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, getBoolean, size
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Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, replaceAll
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2BooleanFunction
getBoolean, put, removeBoolean, test
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2BooleanMap
clear, computeBoolean, computeBooleanIfAbsent, computeBooleanIfAbsentPartial, computeBooleanIfPresent, containsKey, defaultReturnValue, defaultReturnValue, entrySet, get, getOrDefault, getOrDefault, merge, mergeBoolean, 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(boolean v)
Description copied from interface:Object2BooleanMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceObject2BooleanMap<K>
- See Also:
Map.containsValue(Object)
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containsValue
@Deprecated public boolean containsValue(Object ov)
Deprecated.Please use the corresponding type-specific method instead.- Specified by:
containsValue
in interfaceMap<K,Boolean>
- Specified by:
containsValue
in interfaceObject2BooleanMap<K>
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object2BooleanEntrySet
public ObjectSet<Object2BooleanMap.Entry<K>> object2BooleanEntrySet()
Description copied from interface:Object2BooleanMap
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:
object2BooleanEntrySet
in interfaceObject2BooleanMap<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:Object2BooleanMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceMap<K,Boolean>
- Specified by:
keySet
in interfaceObject2BooleanMap<K>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public BooleanCollection values()
Description copied from interface:Object2BooleanMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceMap<K,Boolean>
- Specified by:
values
in interfaceObject2BooleanMap<K>
- Returns:
- a set view of the values contained in this map.
- See Also:
Map.values()
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clone
public Object clone()
- Overrides:
clone
in classObject2BooleanFunctions.EmptyFunction<K>
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hashCode
public int hashCode()
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equals
public boolean equals(Object o)
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toString
public String toString()
- Overrides:
toString
in classObject2BooleanFunctions.EmptyFunction<K>
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