io.vavr

Class Tuple0

java.lang.Object

io.vavr.Tuple0

All Implemented Interfaces:

Tuple, Serializable, Comparable<Tuple0>

public final class Tuple0
extends Object
implements Tuple, Comparable<Tuple0>, Serializable

A tuple of no elements which can be seen as cartesian product of no components.

Author:

Daniel Dietrich

See Also:

Serialized Form

Field Summary

Fields inherited from interface io.vavr.Tuple

MAX_ARITY

Method Summary

Modifier and Type	Method and Description
<U> U	apply(Supplier<? extends U> f) Transforms this tuple to an object of type U.
int	arity() Returns the number of elements of this tuple.
static Comparator<Tuple0>	comparator()
int	compareTo(Tuple0 that)
boolean	equals(Object o)
int	hashCode()
static Tuple0	instance() Returns the singleton instance of Tuple0.
Seq<?>	toSeq() Converts this tuple to a sequence.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.vavr.Tuple

empty, fromEntry, narrow, narrow, narrow, narrow, narrow, narrow, narrow, narrow, of, of, of, of, of, of, of, of, sequence1, sequence2, sequence3, sequence4, sequence5, sequence6, sequence7, sequence8

Method Detail

instance

public static Tuple0 instance()

Returns the singleton instance of Tuple0.

Returns:

The singleton instance of Tuple0.

comparator

public static Comparator<Tuple0> comparator()

arity

public int arity()

Description copied from interface: Tuple

Returns the number of elements of this tuple.

Specified by:

arity in interface Tuple

Returns:

the number of elements.

compareTo

public int compareTo(Tuple0 that)

Specified by:

compareTo in interface Comparable<Tuple0>

apply

public <U> U apply(Supplier<? extends U> f)

Transforms this tuple to an object of type U.

Type Parameters:

U - type of the transformation result

Parameters:

f - Transformation which creates a new object of type U based on this tuple's contents.

Returns:

An object of type U

Throws:

NullPointerException - if f is null

toSeq

public Seq<?> toSeq()

Description copied from interface: Tuple

Converts this tuple to a sequence.

Specified by:

toSeq in interface Tuple

Returns:

A new Seq.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object