Tuple0 (Javaslang 2.1.0-alpha API)

java.lang.Object
- javaslang.Tuple0

All Implemented Interfaces:

Serializable, Comparable<Tuple0>, Tuple
```
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.

Since:

1.1.0

Author:

Daniel Dietrich

See Also:

Serialized Form

Field Summary
- Fields inherited from interface javaslang.Tuple
  MAX_ARITY

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
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()`
`<U> U`	`transform(Supplier<? extends U> f)` Deprecated. Use `apply(Supplier)` instead, will be removed in 3.0.0

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface javaslang.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
  - transform
```
@Deprecated
public <U> U transform(Supplier<? extends U> f)
```
    Deprecated. Use apply(Supplier) instead, will be removed in 3.0.0
    
    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

Class Tuple0

Field Summary

Fields inherited from interface javaslang.Tuple

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface javaslang.Tuple

Method Detail

instance

comparator

arity

compareTo

apply

transform

toSeq

equals

hashCode

toString