OneOfN.JustMatcher (formcycle: bom 8.3.8 API)

Type Parameters:

R - Type of the value returned by the mapping function for each case.

T1 - Type of the first case.

Enclosing class:

OneOfN
```
public static interface OneOfN.JustMatcher<R,T1>
```
A matcher object that contains a handler for each case and can be used to reduce a sum type to a single value. This interface contains a default implementation for each case that simply returns null.

- Method Summary
  
  All Methods Instance Methods Default Methods
  Modifier and Type Method Description
  
  default R first(T1 first)

- Method Detail
  - first
```
default R first(T1 first)
```
    Parameters:
    
    first - The value of the first case.
    
    Returns:
    
    The mapped value for the first case