Package it.unimi.dsi.fastutil.doubles
Class Double2ObjectMaps.EmptyMap<V>
- java.lang.Object
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- it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction<V>
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- it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.EmptyFunction<V>
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- it.unimi.dsi.fastutil.doubles.Double2ObjectMaps.EmptyMap<V>
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- All Implemented Interfaces:
Double2ObjectFunction<V>
,Double2ObjectMap<V>
,Function<Double,V>
,Serializable
,Cloneable
,DoubleFunction<V>
,Function<Double,V>
,Map<Double,V>
- Direct Known Subclasses:
Double2ObjectSortedMaps.EmptySortedMap
- Enclosing class:
- Double2ObjectMaps
public static class Double2ObjectMaps.EmptyMap<V> extends Double2ObjectFunctions.EmptyFunction<V> implements Double2ObjectMap<V>, 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.Double2ObjectMap
Double2ObjectMap.Entry<V>, Double2ObjectMap.FastEntrySet<V>
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
clone()
boolean
containsValue(Object v)
ObjectSet<Double2ObjectMap.Entry<V>>
double2ObjectEntrySet()
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 V> m)
String
toString()
ObjectCollection<V>
values()
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Methods inherited from class it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectFunction
apply, get, put, remove
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectMap
clear, compute, compute, computeIfAbsent, computeIfAbsent, 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(Object v)
- Specified by:
containsValue
in interfaceMap<Double,V>
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double2ObjectEntrySet
public ObjectSet<Double2ObjectMap.Entry<V>> double2ObjectEntrySet()
Description copied from interface:Double2ObjectMap
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:
double2ObjectEntrySet
in interfaceDouble2ObjectMap<V>
- 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:Double2ObjectMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceDouble2ObjectMap<V>
- Specified by:
keySet
in interfaceMap<Double,V>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public ObjectCollection<V> values()
Description copied from interface:Double2ObjectMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceDouble2ObjectMap<V>
- Specified by:
values
in interfaceMap<Double,V>
- 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 classDouble2ObjectFunctions.EmptyFunction<V>
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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 classDouble2ObjectFunctions.EmptyFunction<V>
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