org.apache.storm.streams.operations

Class IdentityFunction<T>

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 and Description
IdentityFunction()

Method Summary

Modifier and Type	Method and 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