it.unimi.dsi.fastutil.doubles

Class Double2ObjectFunctions.Singleton<V>

java.lang.Object

it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction<V>

it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.Singleton<V>

All Implemented Interfaces:

Double2ObjectFunction<V>, Serializable, Cloneable, DoubleFunction<V>, Function<Double,V>

Direct Known Subclasses:

Double2ObjectMaps.Singleton

Enclosing class:

Double2ObjectFunctions

public static class Double2ObjectFunctions.Singleton<V>
extends AbstractDouble2ObjectFunction<V>
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

Method Summary

Modifier and Type	Method and Description
Object	clone()
boolean	containsKey(double k) Returns true if this function contains a mapping for the specified key.
V	get(double k) Returns the value to which the given key is mapped.
int	size()

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction

defaultReturnValue, defaultReturnValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectFunction

apply, containsKey, get, put, put, remove, remove

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

apply, clear

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Method Detail

containsKey

public boolean containsKey(double k)

Description copied from interface: Double2ObjectFunction

Returns true if this function contains a mapping for the specified key.

Note that for some kind of functions (e.g., hashes) this method will always return true. In particular, this default implementation always returns true.

Specified by:

containsKey in interface Double2ObjectFunction<V>

Parameters:

k - the key.

Returns:

true if this function associates a value to key.

See Also:

Function.containsKey(Object)

get

public V get(double k)

Description copied from interface: Double2ObjectFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Double2ObjectFunction<V>

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