Package it.unimi.dsi.fastutil.longs
Class Long2IntMaps.EmptyMap
- java.lang.Object
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- it.unimi.dsi.fastutil.longs.AbstractLong2IntFunction
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- it.unimi.dsi.fastutil.longs.Long2IntFunctions.EmptyFunction
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- it.unimi.dsi.fastutil.longs.Long2IntMaps.EmptyMap
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- All Implemented Interfaces:
Function<Long,Integer>
,Long2IntFunction
,Long2IntMap
,Serializable
,Cloneable
,Function<Long,Integer>
,LongToIntFunction
,Map<Long,Integer>
- Direct Known Subclasses:
Long2IntSortedMaps.EmptySortedMap
- Enclosing class:
- Long2IntMaps
public static class Long2IntMaps.EmptyMap extends Long2IntFunctions.EmptyFunction implements Long2IntMap, 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.longs.Long2IntMap
Long2IntMap.Entry, Long2IntMap.FastEntrySet
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description Object
clone()
boolean
containsValue(int 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()
LongSet
keySet()
ObjectSet<Long2IntMap.Entry>
long2IntEntrySet()
Returns a type-specific set view of the mappings contained in this map.void
putAll(Map<? extends Long,? extends Integer> m)
String
toString()
IntCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.longs.Long2IntFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
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Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2IntFunction
andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get, put, remove
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Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2IntMap
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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Methods inherited from interface java.util.Map
forEach, replaceAll
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Method Detail
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containsValue
public boolean containsValue(int v)
Description copied from interface:Long2IntMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceLong2IntMap
- 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 interfaceLong2IntMap
- Specified by:
containsValue
in interfaceMap<Long,Integer>
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long2IntEntrySet
public ObjectSet<Long2IntMap.Entry> long2IntEntrySet()
Description copied from interface:Long2IntMap
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:
long2IntEntrySet
in interfaceLong2IntMap
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public LongSet keySet()
Description copied from interface:Long2IntMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceLong2IntMap
- Specified by:
keySet
in interfaceMap<Long,Integer>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public IntCollection values()
Description copied from interface:Long2IntMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceLong2IntMap
- Specified by:
values
in interfaceMap<Long,Integer>
- 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 classLong2IntFunctions.EmptyFunction
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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 classLong2IntFunctions.EmptyFunction
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