Package org.apache.storm.trident.operation.builtin

Class FirstN.FirstNSortedAgg

java.lang.Object

org.apache.storm.trident.operation.BaseOperation

org.apache.storm.trident.operation.BaseAggregator<PriorityQueue>

org.apache.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	Description
FirstNSortedAgg(int n, String sortField, boolean reverse)

Method Summary

Modifier and Type	Method	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 org.apache.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 org.apache.storm.trident.operation.Operation

cleanup, prepare

Constructor Details

FirstNSortedAgg

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

Method Details

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)