Package it.unimi.dsi.fastutil.ints
Class Int2IntMaps.EmptyMap
- java.lang.Object
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- it.unimi.dsi.fastutil.ints.AbstractInt2IntFunction
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- it.unimi.dsi.fastutil.ints.Int2IntFunctions.EmptyFunction
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- it.unimi.dsi.fastutil.ints.Int2IntMaps.EmptyMap
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- All Implemented Interfaces:
Function<Integer,Integer>
,Int2IntFunction
,Int2IntMap
,Serializable
,Cloneable
,Function<Integer,Integer>
,IntUnaryOperator
,Map<Integer,Integer>
- Direct Known Subclasses:
Int2IntSortedMaps.EmptySortedMap
- Enclosing class:
- Int2IntMaps
public static class Int2IntMaps.EmptyMap extends Int2IntFunctions.EmptyFunction implements Int2IntMap, 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.ints.Int2IntMap
Int2IntMap.Entry, Int2IntMap.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()
ObjectSet<Int2IntMap.Entry>
int2IntEntrySet()
Returns a type-specific set view of the mappings contained in this map.boolean
isEmpty()
IntSet
keySet()
void
putAll(Map<? extends Integer,? extends Integer> m)
String
toString()
IntCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.ints.Int2IntFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
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Methods inherited from interface it.unimi.dsi.fastutil.ints.Int2IntFunction
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.ints.Int2IntMap
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.function.IntUnaryOperator
andThen, compose
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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:Int2IntMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceInt2IntMap
- 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 interfaceInt2IntMap
- Specified by:
containsValue
in interfaceMap<Integer,Integer>
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int2IntEntrySet
public ObjectSet<Int2IntMap.Entry> int2IntEntrySet()
Description copied from interface:Int2IntMap
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:
int2IntEntrySet
in interfaceInt2IntMap
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public IntSet keySet()
Description copied from interface:Int2IntMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceInt2IntMap
- Specified by:
keySet
in interfaceMap<Integer,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:Int2IntMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceInt2IntMap
- Specified by:
values
in interfaceMap<Integer,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 classInt2IntFunctions.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 classInt2IntFunctions.EmptyFunction
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