com.github.pmerienne.trident.cf.aggregator

Class KeepFirst<T>

java.lang.Object

com.github.pmerienne.trident.cf.aggregator.KeepFirst<T>

All Implemented Interfaces:

Serializable, storm.trident.operation.CombinerAggregator<T>

public class KeepFirst<T>
extends Object
implements storm.trident.operation.CombinerAggregator<T>

CombinerAggregator which re-send the first tuple received

Author:

pmerienne

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
KeepFirst()

Method Summary

Methods

Modifier and Type	Method and Description
T	combine(T val1, T val2)
T	init(storm.trident.tuple.TridentTuple tuple)
T	zero()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KeepFirst

public KeepFirst()

Method Detail

init

public T init(storm.trident.tuple.TridentTuple tuple)

Specified by:

init in interface storm.trident.operation.CombinerAggregator<T>

combine

public T combine(T val1,
        T val2)

Specified by:

combine in interface storm.trident.operation.CombinerAggregator<T>

zero

public T zero()

Specified by:

zero in interface storm.trident.operation.CombinerAggregator<T>