storm.trident.operation.builtin

Class FirstN.FirstNSortedAgg

java.lang.Object

storm.trident.operation.BaseOperation

storm.trident.operation.BaseAggregator<PriorityQueue>

storm.trident.operation.builtin.FirstN.FirstNSortedAgg

All Implemented Interfaces:

Serializable, Aggregator<PriorityQueue>, Operation

Enclosing class:

FirstN

public static class FirstN.FirstNSortedAgg
extends BaseAggregator<PriorityQueue>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FirstN.FirstNSortedAgg(int n, String sortField, boolean reverse)

Method Summary

Methods

Modifier and Type	Method and Description
void	aggregate(PriorityQueue state, TridentTuple tuple, TridentCollector collector)
void	complete(PriorityQueue val, TridentCollector collector)
PriorityQueue	init(Object batchId, TridentCollector collector)

Methods inherited from class storm.trident.operation.BaseOperation

cleanup, prepare

Methods inherited from class java.lang.Object

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

Methods inherited from interface storm.trident.operation.Operation

cleanup, prepare

Constructor Detail

FirstN.FirstNSortedAgg

public FirstN.FirstNSortedAgg(int n,
                      String sortField,
                      boolean reverse)

Method Detail

init

public PriorityQueue init(Object batchId,
                 TridentCollector collector)

aggregate

public void aggregate(PriorityQueue state,
             TridentTuple tuple,
             TridentCollector collector)

complete

public void complete(PriorityQueue val,
            TridentCollector collector)