Package it.unimi.dsi.fastutil.doubles
Class Double2ObjectMaps.EmptyMap<V>
java.lang.Object
it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction<V>
it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.EmptyFunction<V>
it.unimi.dsi.fastutil.doubles.Double2ObjectMaps.EmptyMap<V>
- 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
-
Nested Class Summary
Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectMap
Double2ObjectMap.Entry<V>, Double2ObjectMap.FastEntrySet<V>
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Method Summary
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)
void
forEach(BiConsumer<? super Double,? super V> consumer)
V
getOrDefault(double key, V defaultValue)
Returns the value associated by this function to the specified key, or give the specified value if not present.V
getOrDefault(Object key, V defaultValue)
Deprecated.int
hashCode()
boolean
isEmpty()
DoubleSet
keySet()
void
putAll(Map<? extends Double,? extends V> m)
String
toString()
ObjectCollection<V>
values()
Methods inherited from class it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectFunction
andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, apply, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get, put, remove
Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectMap
clear, compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsent, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsKey, defaultReturnValue, defaultReturnValue, entrySet, get, merge, merge, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace, size
Methods inherited from interface java.util.Map
replaceAll
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Method Details
-
containsValue
- Specified by:
containsValue
in interfaceMap<Double,V>
-
getOrDefault
Deprecated.Description copied from interface:Double2ObjectMap
Returns the value associated by this function to the specified key, or give the specified value if not present.This default implementation just delegates to the corresponding
Map
method.- Specified by:
getOrDefault
in interfaceDouble2ObjectFunction<V>
- Specified by:
getOrDefault
in interfaceDouble2ObjectMap<V>
- Specified by:
getOrDefault
in interfaceFunction<Double,V>
- Specified by:
getOrDefault
in interfaceMap<Double,V>
- Parameters:
key
- the key.defaultValue
- the default value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Map.getOrDefault(Object, Object)
-
getOrDefault
Description copied from interface:Double2ObjectFunction
Returns the value associated by this function to the specified key, or give the specified value if not present.- Specified by:
getOrDefault
in interfaceDouble2ObjectFunction<V>
- Specified by:
getOrDefault
in interfaceDouble2ObjectMap<V>
- Overrides:
getOrDefault
in classDouble2ObjectFunctions.EmptyFunction<V>
- Parameters:
key
- the key.defaultValue
- the value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Function.getOrDefault(Object, Object)
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putAll
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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()
-
keySet
Description copied from interface:Double2ObjectMap
- 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()
-
values
Description copied from interface:Double2ObjectMap
- 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()
-
forEach
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clone
- Overrides:
clone
in classDouble2ObjectFunctions.EmptyFunction<V>
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isEmpty
public boolean isEmpty() -
hashCode
public int hashCode() -
equals
-
toString
- Overrides:
toString
in classDouble2ObjectFunctions.EmptyFunction<V>
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