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

Method Summary

Modifier and Type	Method	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 Details

ValuesMapper

public ValuesMapper(int... indices)

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

Parameters:

indices - the indices

Method Details

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