it.unimi.dsi.fastutil.objects

Class Reference2DoubleFunctions.Singleton<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.AbstractReference2DoubleFunction<K>

it.unimi.dsi.fastutil.objects.Reference2DoubleFunctions.Singleton<K>

All Implemented Interfaces:

Reference2DoubleFunction<K>, Serializable, Cloneable, Function<K,Double>, ToDoubleFunction<K>

Direct Known Subclasses:

Reference2DoubleMaps.Singleton

Enclosing class:

Reference2DoubleFunctions

public static class Reference2DoubleFunctions.Singleton<K>
extends AbstractReference2DoubleFunction<K>
implements Serializable, 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 K	key
protected double	value

Fields inherited from class it.unimi.dsi.fastutil.objects.AbstractReference2DoubleFunction

defRetValue

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Singleton(K key, double value)

Method Summary

Modifier and Type	Method and Description
Object	clone()
boolean	containsKey(Object k)
double	getDouble(Object k) Returns the value to which the given key is mapped.
int	size()

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractReference2DoubleFunction

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.objects.Reference2DoubleFunction

applyAsDouble, get, put, put, remove, removeDouble

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

apply, clear

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Field Detail

key

protected final K key

value

protected final double value

Constructor Detail

Singleton

protected Singleton(K key,
                    double value)

Method Detail

containsKey

public boolean containsKey(Object k)

getDouble

public double getDouble(Object k)

Description copied from interface: Reference2DoubleFunction

Returns the value to which the given key is mapped.

Specified by:

getDouble in interface Reference2DoubleFunction<K>

Parameters:

k - the key.

Returns:

the corresponding value, or the default return value if no value was present for the given key.

See Also:

Function.get(Object)

size

public int size()

clone

public Object clone()

Overrides:

clone in class Object