it.unimi.dsi.fastutil.bytes

Class Byte2DoubleMaps.EmptyMap

java.lang.Object

it.unimi.dsi.fastutil.bytes.AbstractByte2DoubleFunction

it.unimi.dsi.fastutil.bytes.Byte2DoubleFunctions.EmptyFunction

it.unimi.dsi.fastutil.bytes.Byte2DoubleMaps.EmptyMap

All Implemented Interfaces:

Byte2DoubleFunction, Byte2DoubleMap, Function<Byte,Double>, Serializable, Cloneable, Map<Byte,Double>

Direct Known Subclasses:

Byte2DoubleSortedMaps.EmptySortedMap

Enclosing class:

Byte2DoubleMaps

public static class Byte2DoubleMaps.EmptyMap
extends Byte2DoubleFunctions.EmptyFunction
implements Byte2DoubleMap, 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.bytes.Byte2DoubleMap

Byte2DoubleMap.Entry, Byte2DoubleMap.FastEntrySet

Method Summary

Modifier and Type	Method and Description
ObjectSet<Byte2DoubleMap.Entry>	byte2DoubleEntrySet() Returns a type-specific set view of the mappings contained in this map.
Object	clone()
boolean	containsValue(double v)
boolean	containsValue(Object ov)
ObjectSet<Map.Entry<Byte,Double>>	entrySet() Returns a set view of the mappings contained in this map.
boolean	equals(Object o)
int	hashCode()
boolean	isEmpty()
ByteSet	keySet() Returns a set view of the keys contained in this map.
void	putAll(Map<? extends Byte,? extends Double> m)
String	toString()
DoubleCollection	values() Returns a set view of the values contained in this map.

Methods inherited from class it.unimi.dsi.fastutil.bytes.Byte2DoubleFunctions.EmptyFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, get, size

Methods inherited from class it.unimi.dsi.fastutil.bytes.AbstractByte2DoubleFunction

containsKey, put, put, remove, remove

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.bytes.Byte2DoubleFunction

containsKey, defaultReturnValue, defaultReturnValue, get, put, remove

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

clear, containsKey, get, put, remove, size

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, forEach, get, getOrDefault, merge, put, putIfAbsent, remove, remove, replace, replace, replaceAll, size

Method Detail

containsValue

public boolean containsValue(double v)

Specified by:

containsValue in interface Byte2DoubleMap

See Also:

Map.containsValue(Object)

putAll

public void putAll(Map<? extends Byte,? extends Double> m)

Specified by:

putAll in interface Map<Byte,Double>

byte2DoubleEntrySet

public ObjectSet<Byte2DoubleMap.Entry> byte2DoubleEntrySet()

Description copied from interface: Byte2DoubleMap

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 Byte2DoubleMap.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:

byte2DoubleEntrySet in interface Byte2DoubleMap

Returns:

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

See Also:

Byte2DoubleMap.entrySet()

keySet

public ByteSet keySet()

Description copied from interface: Byte2DoubleMap

Returns a set view of the keys contained in this map.

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

Specified by:

keySet in interface Byte2DoubleMap

Specified by:

keySet in interface Map<Byte,Double>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public DoubleCollection values()

Description copied from interface: Byte2DoubleMap

Returns a set view of the values contained in this map.

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

Specified by:

values in interface Byte2DoubleMap

Specified by:

values in interface Map<Byte,Double>

Returns:

a set view of the values contained in this map.

See Also:

Map.values()

containsValue

public boolean containsValue(Object ov)

Specified by:

containsValue in interface Map<Byte,Double>

clone

public Object clone()

Overrides:

clone in class Byte2DoubleFunctions.EmptyFunction

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Byte,Double>

entrySet

public ObjectSet<Map.Entry<Byte,Double>> entrySet()

Description copied from interface: Byte2DoubleMap

Returns a set view of the mappings contained in this map.

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

Specified by:

entrySet in interface Byte2DoubleMap

Specified by:

entrySet in interface Map<Byte,Double>

Returns:

a set view of the mappings contained in this map.

See Also:

Map.entrySet()

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Byte,Double>

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Byte,Double>

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object