storm.trident.operation
Interface Operation

All Superinterfaces:

Serializable

All Known Subinterfaces:

Aggregator<T>, EachOperation, Filter, Function, QueryFunction<S,T>, StateUpdater<S>

All Known Implementing Classes:

BaseAggregator, BaseFilter, BaseFunction, BaseOperation, BaseQueryFunction, BaseStateUpdater, ChainedAggregatorImpl, CombinerAggregatorCombineImpl, CombinerAggregatorInitImpl, CombinerAggStateUpdater, CountAsAggregator, Debug, Equals, FilterExecutor, FilterNull, FirstN.FirstNAgg, FirstN.FirstNSortedAgg, GroupedAggregator, MapCombinerAggStateUpdater, MapGet, MapReducerAggStateUpdater, Negate, ReducerAggregatorImpl, ReducerAggStateUpdater, SingleEmitAggregator, SnapshotGet, Split, StringLength, TrueFilter, TrueFilter, TupleCollectionGet, TuplifyArgs

public interface Operation
extends Serializable

Method Summary

void	cleanup()
void	prepare(Map conf, TridentOperationContext context)

Method Detail

prepare

void prepare(Map conf,
             TridentOperationContext context)

cleanup

void cleanup()