Package it.unimi.dsi.fastutil.chars

Class Char2DoubleMaps.EmptyMap

java.lang.Object

it.unimi.dsi.fastutil.chars.AbstractChar2DoubleFunction

it.unimi.dsi.fastutil.chars.Char2DoubleFunctions.EmptyFunction

it.unimi.dsi.fastutil.chars.Char2DoubleMaps.EmptyMap

All Implemented Interfaces:

Char2DoubleFunction, Char2DoubleMap, Function<java.lang.Character,java.lang.Double>, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<java.lang.Character,java.lang.Double>, java.util.function.IntToDoubleFunction, java.util.Map<java.lang.Character,java.lang.Double>

Direct Known Subclasses:

Char2DoubleSortedMaps.EmptySortedMap

Enclosing class:

Char2DoubleMaps

public static class Char2DoubleMaps.EmptyMap
extends Char2DoubleFunctions.EmptyFunction
implements Char2DoubleMap, java.io.Serializable, java.lang.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.chars.Char2DoubleMap

Char2DoubleMap.Entry, Char2DoubleMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
ObjectSet<Char2DoubleMap.Entry>	char2DoubleEntrySet()	Returns a type-specific set view of the mappings contained in this map.
java.lang.Object	clone()
boolean	containsValue(double v)	Returns true if this map maps one or more keys to the specified value.
boolean	containsValue(java.lang.Object ov)	Deprecated. Please use the corresponding type-specific method instead.
boolean	equals(java.lang.Object o)
int	hashCode()
boolean	isEmpty()
CharSet	keySet()
void	putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Double> m)
java.lang.String	toString()
DoubleCollection	values()

Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2DoubleFunction

applyAsDouble, get, put, remove

Methods inherited from class it.unimi.dsi.fastutil.chars.Char2DoubleFunctions.EmptyFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, size

Methods inherited from interface it.unimi.dsi.fastutil.chars.Char2DoubleMap

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

Methods inherited from interface it.unimi.dsi.fastutil.Function

apply

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface java.util.Map

forEach, replaceAll

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

containsValue

public boolean containsValue(double v)

Description copied from interface: Char2DoubleMap

Returns true if this map maps one or more keys to the specified value.

Specified by:

containsValue in interface Char2DoubleMap

See Also:

Map.containsValue(Object)

containsValue

@Deprecated
public boolean containsValue(java.lang.Object ov)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

containsValue in interface Char2DoubleMap

Specified by:

containsValue in interface java.util.Map<java.lang.Character,java.lang.Double>

putAll

public void putAll(java.util.Map<? extends java.lang.Character,? extends java.lang.Double> m)

Specified by:

putAll in interface java.util.Map<java.lang.Character,java.lang.Double>

char2DoubleEntrySet

public ObjectSet<Char2DoubleMap.Entry> char2DoubleEntrySet()

Description copied from interface: Char2DoubleMap

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 an ObjectSet of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).

Specified by:

char2DoubleEntrySet in interface Char2DoubleMap

Returns:

a type-specific set view of the mappings contained in this map.

See Also:

Map.entrySet()

keySet

public CharSet keySet()

Description copied from interface: Char2DoubleMap

Note that this specification strengthens the one given in Map.keySet().

Specified by:

keySet in interface Char2DoubleMap

Specified by:

keySet in interface java.util.Map<java.lang.Character,java.lang.Double>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public DoubleCollection values()

Description copied from interface: Char2DoubleMap

Note that this specification strengthens the one given in Map.values().

Specified by:

values in interface Char2DoubleMap

Specified by:

values in interface java.util.Map<java.lang.Character,java.lang.Double>

Returns:

a set view of the values contained in this map.

See Also:

Map.values()

clone

public java.lang.Object clone()

Overrides:

clone in class Char2DoubleFunctions.EmptyFunction

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<java.lang.Character,java.lang.Double>

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map<java.lang.Character,java.lang.Double>

Overrides:

hashCode in class Char2DoubleFunctions.EmptyFunction

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Map<java.lang.Character,java.lang.Double>

Overrides:

equals in class Char2DoubleFunctions.EmptyFunction

toString

public java.lang.String toString()

Overrides:

toString in class Char2DoubleFunctions.EmptyFunction