Interface Aggregator<T>
- All Superinterfaces:
Operation
,Serializable
- All Known Implementing Classes:
BaseAggregator
,ChainedAggregatorImpl
,CombinerAggregatorCombineImpl
,ComparisonAggregator
,CountAsAggregator
,FirstN.FirstNAgg
,FirstN.FirstNSortedAgg
,GroupedAggregator
,Max
,MaxWithComparator
,Min
,MinWithComparator
,ReducerAggregatorImpl
,SingleEmitAggregator
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Method Summary
Modifier and TypeMethodDescriptionvoid
aggregate
(T val, TridentTuple tuple, TridentCollector collector) void
complete
(T val, TridentCollector collector) init
(Object batchId, TridentCollector collector)
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Method Details
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init
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aggregate
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complete
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