Package it.unimi.dsi.fastutil.doubles
Class Double2DoubleMaps.EmptyMap
- java.lang.Object
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- it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleFunction
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- it.unimi.dsi.fastutil.doubles.Double2DoubleFunctions.EmptyFunction
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- it.unimi.dsi.fastutil.doubles.Double2DoubleMaps.EmptyMap
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- All Implemented Interfaces:
Double2DoubleFunction
,Double2DoubleMap
,Function<Double,Double>
,Serializable
,Cloneable
,DoubleUnaryOperator
,Function<Double,Double>
,Map<Double,Double>
- Direct Known Subclasses:
Double2DoubleSortedMaps.EmptySortedMap
- Enclosing class:
- Double2DoubleMaps
public static class Double2DoubleMaps.EmptyMap extends Double2DoubleFunctions.EmptyFunction implements Double2DoubleMap, 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.doubles.Double2DoubleMap
Double2DoubleMap.Entry, Double2DoubleMap.FastEntrySet
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description Object
clone()
boolean
containsValue(double 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<Double2DoubleMap.Entry>
double2DoubleEntrySet()
Returns a type-specific set view of the mappings contained in this map.boolean
equals(Object o)
int
hashCode()
boolean
isEmpty()
DoubleSet
keySet()
void
putAll(Map<? extends Double,? extends Double> m)
String
toString()
DoubleCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.doubles.Double2DoubleFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleFunction
applyAsDouble, get, put, remove
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleMap
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.DoubleUnaryOperator
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(double v)
Description copied from interface:Double2DoubleMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceDouble2DoubleMap
- 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 interfaceDouble2DoubleMap
- Specified by:
containsValue
in interfaceMap<Double,Double>
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double2DoubleEntrySet
public ObjectSet<Double2DoubleMap.Entry> double2DoubleEntrySet()
Description copied from interface:Double2DoubleMap
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:
double2DoubleEntrySet
in interfaceDouble2DoubleMap
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public DoubleSet keySet()
Description copied from interface:Double2DoubleMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceDouble2DoubleMap
- Specified by:
keySet
in interfaceMap<Double,Double>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public DoubleCollection values()
Description copied from interface:Double2DoubleMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceDouble2DoubleMap
- Specified by:
values
in interfaceMap<Double,Double>
- 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 classDouble2DoubleFunctions.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 classDouble2DoubleFunctions.EmptyFunction
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