Package it.unimi.dsi.fastutil.objects
Class Reference2LongMaps.Singleton<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.AbstractReference2LongFunction<K>
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- it.unimi.dsi.fastutil.objects.Reference2LongFunctions.Singleton<K>
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- it.unimi.dsi.fastutil.objects.Reference2LongMaps.Singleton<K>
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- All Implemented Interfaces:
Function<K,Long>
,Reference2LongFunction<K>
,Reference2LongMap<K>
,Serializable
,Cloneable
,Function<K,Long>
,ToLongFunction<K>
,Map<K,Long>
- Direct Known Subclasses:
Reference2LongSortedMaps.Singleton
- Enclosing class:
- Reference2LongMaps
public static class Reference2LongMaps.Singleton<K> extends Reference2LongFunctions.Singleton<K> implements Reference2LongMap<K>, Serializable, Cloneable
An immutable class representing a type-specific singleton 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.Reference2LongMap
Reference2LongMap.Entry<K>, Reference2LongMap.FastEntrySet<K>
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description boolean
containsValue(long 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.ObjectSet<Map.Entry<K,Long>>
entrySet()
Deprecated.Please use the corresponding type-specific method instead.boolean
equals(Object o)
int
hashCode()
boolean
isEmpty()
ReferenceSet<K>
keySet()
void
putAll(Map<? extends K,? extends Long> m)
ObjectSet<Reference2LongMap.Entry<K>>
reference2LongEntrySet()
Returns a type-specific set view of the mappings contained in this map.String
toString()
LongCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.objects.Reference2LongFunctions.Singleton
clone, containsKey, getLong, size
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Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractReference2LongFunction
defaultReturnValue, defaultReturnValue
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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.Reference2LongFunction
applyAsLong, getLong, put, removeLong
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2LongMap
clear, computeLong, computeLongIfAbsent, computeLongIfAbsentPartial, computeLongIfPresent, containsKey, defaultReturnValue, defaultReturnValue, get, getOrDefault, getOrDefault, merge, mergeLong, 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(long v)
Description copied from interface:Reference2LongMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceReference2LongMap<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,Long>
- Specified by:
containsValue
in interfaceReference2LongMap<K>
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reference2LongEntrySet
public ObjectSet<Reference2LongMap.Entry<K>> reference2LongEntrySet()
Description copied from interface:Reference2LongMap
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:
reference2LongEntrySet
in interfaceReference2LongMap<K>
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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entrySet
@Deprecated public ObjectSet<Map.Entry<K,Long>> entrySet()
Deprecated.Please use the corresponding type-specific method instead.Returns a set view of the mappings contained in this map.Note that this specification strengthens the one given in
Map.entrySet()
.- Specified by:
entrySet
in interfaceMap<K,Long>
- Specified by:
entrySet
in interfaceReference2LongMap<K>
- Returns:
- a set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public ReferenceSet<K> keySet()
Description copied from interface:Reference2LongMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceMap<K,Long>
- Specified by:
keySet
in interfaceReference2LongMap<K>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public LongCollection values()
Description copied from interface:Reference2LongMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceMap<K,Long>
- Specified by:
values
in interfaceReference2LongMap<K>
- Returns:
- a set view of the values contained in this map.
- See Also:
Map.values()
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hashCode
public int hashCode()
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equals
public boolean equals(Object o)
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