no.motif.f

Interface Fn<I,O>

Type Parameters:

I - the type of the function argument

O - The type of object the function returns.

All Superinterfaces:

Serializable

All Known Subinterfaces:

Mapper<I,O>

All Known Implementing Classes:

Constant, Enums.FromName, FnChain, PartialApplication, Throw, When

public interface Fn<I,O>
extends Serializable

Function taking a value of type I and returning a value of type O.

 ƒ(I) ∈ O
 

This function type is often referred to as a "mapper" or "transformer", as it takes one value and based on it, yields another value. The function defines the mapping between values.

This function type is the most commonly used one, and is promoted to be named without an index, whereas the other function types are named as FnX, where X denotes how many arguments it takes. I.e. Fn0, Fn2, etc.

Method Summary

Modifier and Type	Method and Description
O	$(I value) Applies the function.

Method Detail

$

O $(I value)

Applies the function.

Parameters:

value - The value to apply the function on.

Returns:

the result from the function application.