io.vavr

Class Tuple0

java.lang.Object

io.vavr.Tuple0

All Implemented Interfaces:

Tuple, java.io.Serializable

public final class Tuple0
extends java.lang.Object
implements Tuple, java.io.Serializable

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

See Also:

Serialized Form

Field Summary

Fields inherited from interface io.vavr.Tuple

MAX_ARITY

Method Summary

Modifier and Type	Method and Description
<T> Tuple1<T>	append(T t) Append a value to this tuple.
<U> U	apply(java.util.function.Supplier<? extends U> f) Transforms this tuple to an object of type U.
int	arity() Returns the number of elements of this tuple.
static java.util.Comparator<Tuple0>	comparator()
<T1> Tuple1<T1>	concat(Tuple1<T1> tuple) Concat a tuple's values to this tuple.
<T1,T2> Tuple2<T1,T2>	concat(Tuple2<T1,T2> tuple) Concat a tuple's values to this tuple.
<T1,T2,T3> Tuple3<T1,T2,T3>	concat(Tuple3<T1,T2,T3> tuple) Concat a tuple's values to this tuple.
<T1,T2,T3,T4> Tuple4<T1,T2,T3,T4>	concat(Tuple4<T1,T2,T3,T4> tuple) Concat a tuple's values to this tuple.
<T1,T2,T3,T4,T5> Tuple5<T1,T2,T3,T4,T5>	concat(Tuple5<T1,T2,T3,T4,T5> tuple) Concat a tuple's values to this tuple.
<T1,T2,T3,T4,T5,T6> Tuple6<T1,T2,T3,T4,T5,T6>	concat(Tuple6<T1,T2,T3,T4,T5,T6> tuple) Concat a tuple's values to this tuple.
<T1,T2,T3,T4,T5,T6,T7> Tuple7<T1,T2,T3,T4,T5,T6,T7>	concat(Tuple7<T1,T2,T3,T4,T5,T6,T7> tuple) Concat a tuple's values to this tuple.
<T1,T2,T3,T4,T5,T6,T7,T8> Tuple8<T1,T2,T3,T4,T5,T6,T7,T8>	concat(Tuple8<T1,T2,T3,T4,T5,T6,T7,T8> tuple) Concat a tuple's values to this tuple.
boolean	equals(java.lang.Object o)
int	hashCode()
static Tuple0	instance() Returns the singleton instance of Tuple0.
<T> Tuple1<T>	prepend(T t) Prepend a value to this tuple.
Seq<?>	toSeq() Converts this tuple to a sequence.
java.lang.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, hash, hash, hash, hash, hash, hash, hash, hash, 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 java.util.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.

apply

public <U> U apply(java.util.function.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:

java.lang.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.

prepend

public <T> Tuple1<T> prepend(T t)

Prepend a value to this tuple.

Type Parameters:

T - type of the value to prepend

Parameters:

t - the value to prepend

Returns:

a new Tuple with the value prepended

append

public <T> Tuple1<T> append(T t)

Append a value to this tuple.

Type Parameters:

T - type of the value to append

Parameters:

t - the value to append

Returns:

a new Tuple with the value appended

concat

public <T1> Tuple1<T1> concat(Tuple1<T1> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

concat

public <T1,T2> Tuple2<T1,T2> concat(Tuple2<T1,T2> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

T2 - the type of the 2nd value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

concat

public <T1,T2,T3> Tuple3<T1,T2,T3> concat(Tuple3<T1,T2,T3> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

T2 - the type of the 2nd value in the tuple

T3 - the type of the 3rd value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

concat

public <T1,T2,T3,T4> Tuple4<T1,T2,T3,T4> concat(Tuple4<T1,T2,T3,T4> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

T2 - the type of the 2nd value in the tuple

T3 - the type of the 3rd value in the tuple

T4 - the type of the 4th value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

concat

public <T1,T2,T3,T4,T5> Tuple5<T1,T2,T3,T4,T5> concat(Tuple5<T1,T2,T3,T4,T5> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

T2 - the type of the 2nd value in the tuple

T3 - the type of the 3rd value in the tuple

T4 - the type of the 4th value in the tuple

T5 - the type of the 5th value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

concat

public <T1,T2,T3,T4,T5,T6> Tuple6<T1,T2,T3,T4,T5,T6> concat(Tuple6<T1,T2,T3,T4,T5,T6> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

T2 - the type of the 2nd value in the tuple

T3 - the type of the 3rd value in the tuple

T4 - the type of the 4th value in the tuple

T5 - the type of the 5th value in the tuple

T6 - the type of the 6th value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

concat

public <T1,T2,T3,T4,T5,T6,T7> Tuple7<T1,T2,T3,T4,T5,T6,T7> concat(Tuple7<T1,T2,T3,T4,T5,T6,T7> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

T2 - the type of the 2nd value in the tuple

T3 - the type of the 3rd value in the tuple

T4 - the type of the 4th value in the tuple

T5 - the type of the 5th value in the tuple

T6 - the type of the 6th value in the tuple

T7 - the type of the 7th value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

concat

public <T1,T2,T3,T4,T5,T6,T7,T8> Tuple8<T1,T2,T3,T4,T5,T6,T7,T8> concat(Tuple8<T1,T2,T3,T4,T5,T6,T7,T8> tuple)

Concat a tuple's values to this tuple.

Type Parameters:

T1 - the type of the 1st value in the tuple

T2 - the type of the 2nd value in the tuple

T3 - the type of the 3rd value in the tuple

T4 - the type of the 4th value in the tuple

T5 - the type of the 5th value in the tuple

T6 - the type of the 6th value in the tuple

T7 - the type of the 7th value in the tuple

T8 - the type of the 8th value in the tuple

Parameters:

tuple - the tuple to concat

Returns:

a new Tuple with the tuple values appended

Throws:

java.lang.NullPointerException - if tuple is null

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object