UnaryFunction

All Superinterfaces:

java.io.Serializable

All Known Subinterfaces:

AttributeWriterBase.Factory<W>, BatchLogReader.Factory<T>, BulkAttributeWriter.Factory<T>, CachedView.Factory, CommitLogReader.Factory<T>, OnlineAttributeWriter.Factory<T>, RandomAccessReader.Factory<T>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@Stable
@FunctionalInterface
public interface UnaryFunction<IN,OUT>
extends java.io.Serializable
```
Function of single argument.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`OUT`	`apply(IN input)`	Apply function and return result.
`static <T> UnaryFunction<T,T>`	`identity()`	Return identity function.

- Method Detail
  - identity
```
static <T> UnaryFunction<T,T> identity()
```
    Return identity function.
    
    Type Parameters:
    
    T - the type of input
    
    Returns:
    
    the identity function
  - apply
```
OUT apply(IN input)
```
    Apply function and return result.
    
    Parameters:
    
    input - input of the function
    
    Returns:
    
    result