org.apache.storm.streams.operations.mappers

Class ValuesMapper

java.lang.Object

org.apache.storm.streams.operations.mappers.ValuesMapper

All Implemented Interfaces:

Serializable, Function<Tuple,Values>, TupleValueMapper<Values>, Operation

public class ValuesMapper
extends Object
implements TupleValueMapper<Values>

Constructs a Values from a Tuple based on indicies.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ValuesMapper(int... indices) Constructs a new ValuesMapper that extracts value from a Tuple at specified indices

Method Summary

Modifier and Type	Method and Description
Values	apply(Tuple 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

ValuesMapper

public ValuesMapper(int... indices)

Constructs a new ValuesMapper that extracts value from a Tuple at specified indices

Parameters:

indices - the indices

Method Detail

apply

public Values apply(Tuple input)

Description copied from interface: Function

Applies this function to the given argument.

Specified by:

apply in interface Function<Tuple,Values>

Parameters:

input - the input to the function

Returns:

the function result