it.unimi.dsi.fastutil.longs

Class Long2LongFunctions.Singleton

java.lang.Object

it.unimi.dsi.fastutil.longs.AbstractLong2LongFunction

it.unimi.dsi.fastutil.longs.Long2LongFunctions.Singleton

All Implemented Interfaces:

it.unimi.dsi.fastutil.longs.Long2LongFunction, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<java.lang.Long,java.lang.Long>, java.util.function.LongUnaryOperator

Direct Known Subclasses:

Long2LongMaps.Singleton

Enclosing class:

Long2LongFunctions

public static class Long2LongFunctions.Singleton
extends AbstractLong2LongFunction
implements java.io.Serializable, java.lang.Cloneable

An immutable class representing a type-specific singleton function. Note that the default return value is still settable.

Note that albeit the function is immutable, its default return value may be changed.

This class may be useful to implement your own in case you subclass a type-specific function.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected long	key
protected long	value

Fields inherited from class it.unimi.dsi.fastutil.longs.AbstractLong2LongFunction

defRetValue

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Singleton(long key, long value)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone()
boolean	containsKey(long k)
long	get(long k)
long	getOrDefault(long k, long defaultValue)
int	size()

Methods inherited from class it.unimi.dsi.fastutil.longs.AbstractLong2LongFunction

defaultReturnValue, defaultReturnValue

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2LongFunction

andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsLong, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, containsKey, get, getOrDefault, identity, put, put, remove, remove

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

apply, clear

Methods inherited from interface java.util.function.LongUnaryOperator

andThen, compose

Field Detail

key

protected final long key

value

protected final long value

Constructor Detail

Singleton

protected Singleton(long key,
                    long value)

Method Detail

containsKey

public boolean containsKey(long k)

Specified by:

containsKey in interface it.unimi.dsi.fastutil.longs.Long2LongFunction

get

public long get(long k)

Specified by:

get in interface it.unimi.dsi.fastutil.longs.Long2LongFunction

getOrDefault

public long getOrDefault(long k,
                         long defaultValue)

Specified by:

getOrDefault in interface it.unimi.dsi.fastutil.longs.Long2LongFunction

size

public int size()

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object