Object
- play.libs.F

```
public class F
extends Object
```
Defines a set of functional programming style helpers.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`F.Either<L,R>`	Represents a value of one of two possible types (a disjoint union)
`static interface`	`F.Function3<A,B,C,R>`	A Function with 3 arguments.
`static interface`	`F.Function4<A,B,C,D,R>`	A Function with 4 arguments.
`static class`	`F.LazySupplier<T>`
`static class`	`F.PromiseTimeoutException`	Exception thrown when an operation times out.
`static class`	`F.Tuple<A,B>`	A pair - a tuple of the types `A` and `B`.
`static class`	`F.Tuple3<A,B,C>`	A tuple of A,B,C
`static class`	`F.Tuple4<A,B,C,D>`	A tuple of A,B,C,D
`static class`	`F.Tuple5<A,B,C,D,E>`	A tuple of A,B,C,D,E

Constructor Summary

Constructors
Constructor Description

F()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <A,B> F.Tuple<A,B>`	`Tuple(A a, B b)`	Constructs a tuple of A,B
`static <A,B,C> F.Tuple3<A,B,C>`	`Tuple3(A a, B b, C c)`	Constructs a tuple of A,B,C
`static <A,B,C,D> F.Tuple4<A,B,C,D>`	`Tuple4(A a, B b, C c, D d)`	Constructs a tuple of A,B,C,D
`static <A,B,C,D,E> F.Tuple5<A,B,C,D,E>`	`Tuple5(A a, B b, C c, D d, E e)`	Constructs a tuple of A,B,C,D,E

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

Constructor Detail
- F
```
public F()
```

Method Detail

Tuple
```
public static <A,B> F.Tuple<A,B> Tuple(A a,
                                                   B b)
```
Constructs a tuple of A,B

Type Parameters:

A - a's type

B - b's type

Parameters:

a - The a value

b - The b value

Returns:

The tuple

Tuple3

public static <A,B,C> F.Tuple3<A,B,C> Tuple3(A a,
                                                                     B b,
                                                                     C c)

Constructs a tuple of A,B,C

Type Parameters:: A - a's type; B - b's type; C - c's type
Parameters:: a - The a value; b - The b value; c - The c value
Returns:: The tuple

Tuple4

public static <A,B,C,D> F.Tuple4<A,B,C,D> Tuple4(A a,
                                                                                     B b,
                                                                                     C c,
                                                                                     D d)

Constructs a tuple of A,B,C,D

Type Parameters:: A - a's type; B - b's type; C - c's type; D - d's type
Parameters:: a - The a value; b - The b value; c - The c value; d - The d value
Returns:: The tuple

Tuple5

public static <A,B,C,D,E> F.Tuple5<A,B,C,D,E> Tuple5(A a,
                                                                                                     B b,
                                                                                                     C c,
                                                                                                     D d,
                                                                                                     E e)

Constructs a tuple of A,B,C,D,E

Type Parameters:: A - a's type; B - b's type; C - c's type; D - d's type; E - e's type
Parameters:: a - The a value; b - The b value; c - The c value; d - The d value; e - The e value
Returns:: The tuple

Class F

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

F

Method Detail

Tuple

Tuple3

Tuple4

Tuple5