IdentityFunction (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.streams.operations.IdentityFunction<T>

Type Parameters:

T - the type of the input

All Implemented Interfaces:

Serializable, Function<T,T>, Operation
```
public class IdentityFunction<T>
extends Object
implements Function<T,T>
```
A Function that returns the input argument itself as the result.

See Also:

Serialized Form

- Constructor Summary
  
  Constructors
  Constructor Description
  
  IdentityFunction()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  T apply(T input)
  Applies this function to the given argument.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - IdentityFunction
```
public IdentityFunction()
```
- Method Detail
  - apply
```
public T apply(T input)
```
    Description copied from interface: Function
    
    Applies this function to the given argument.
    
    Specified by:
    
    apply in interface Function<T,T>
    
    Parameters:
    
    input - the input to the function
    
    Returns:
    
    the function result