Package it.unimi.dsi.fastutil.bytes

Class Byte2ReferenceMaps.EmptyMap<V>

java.lang.Object

it.unimi.dsi.fastutil.bytes.AbstractByte2ReferenceFunction<V>

it.unimi.dsi.fastutil.bytes.Byte2ReferenceFunctions.EmptyFunction<V>

it.unimi.dsi.fastutil.bytes.Byte2ReferenceMaps.EmptyMap<V>

All Implemented Interfaces:

Byte2ReferenceFunction<V>, Byte2ReferenceMap<V>, Function<Byte,V>, Serializable, Cloneable, Function<Byte,V>, IntFunction<V>, Map<Byte,V>

Direct Known Subclasses:

Byte2ReferenceSortedMaps.EmptySortedMap

Enclosing class:

Byte2ReferenceMaps

public static class Byte2ReferenceMaps.EmptyMap<V>
extends Byte2ReferenceFunctions.EmptyFunction<V>
implements Byte2ReferenceMap<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.bytes.Byte2ReferenceMap

Byte2ReferenceMap.Entry<V>, Byte2ReferenceMap.FastEntrySet<V>

Method Summary

Modifier and Type	Method	Description
ObjectSet<Byte2ReferenceMap.Entry<V>>	byte2ReferenceEntrySet()	Returns a type-specific set view of the mappings contained in this map.
Object	clone()
boolean	containsValue(Object v)
boolean	equals(Object o)
int	hashCode()
boolean	isEmpty()
ByteSet	keySet()
void	putAll(Map<? extends Byte,? extends V> m)
String	toString()
ReferenceCollection<V>	values()

Methods inherited from class it.unimi.dsi.fastutil.bytes.Byte2ReferenceFunctions.EmptyFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, size

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.bytes.Byte2ReferenceFunction

andThen, andThen, andThen, andThen, andThen, andThen, andThen, andThen, andThen, apply, compose, compose, compose, compose, compose, compose, compose, compose, compose, get, put, remove

Methods inherited from interface it.unimi.dsi.fastutil.bytes.Byte2ReferenceMap

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

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

Method Details

containsValue

public boolean containsValue(Object v)

Specified by:

containsValue in interface Map<Byte,V>

putAll

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

Specified by:

putAll in interface Map<Byte,V>

byte2ReferenceEntrySet

public ObjectSet<Byte2ReferenceMap.Entry<V>> byte2ReferenceEntrySet()

Description copied from interface: Byte2ReferenceMap

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:

byte2ReferenceEntrySet in interface Byte2ReferenceMap<V>

Returns:

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

See Also:

Map.entrySet()

keySet

public ByteSet keySet()

Description copied from interface: Byte2ReferenceMap

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

Specified by:

keySet in interface Byte2ReferenceMap<V>

Specified by:

keySet in interface Map<Byte,V>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public ReferenceCollection<V> values()

Description copied from interface: Byte2ReferenceMap

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

Specified by:

values in interface Byte2ReferenceMap<V>

Specified by:

values in interface Map<Byte,V>

Returns:

a set view of the values contained in this map.

See Also:

Map.values()

clone

public Object clone()

Overrides:

clone in class Byte2ReferenceFunctions.EmptyFunction<V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Byte,V>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Byte,V>

Overrides:

hashCode in class Byte2ReferenceFunctions.EmptyFunction<V>

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Byte,V>

Overrides:

equals in class Byte2ReferenceFunctions.EmptyFunction<V>

toString

public String toString()

Overrides:

toString in class Byte2ReferenceFunctions.EmptyFunction<V>