org.wso2.siddhi.core.query.selector.attribute.aggregator.incremental

Interface Executor

All Known Implementing Classes:

EntryValveExecutor, IncrementalExecutor

public interface Executor

This is the parent interface representing Event executor for incremental execution in Siddhi. Each event executor (IncrementalExecutor) corresponds to a duration specified in TimePeriod.Duration. Apart from that, EntryValveExecutor which is a special implementation of this interface, marks the entry point to the rest of the incremental executors. All of these executors are chained in such a way, that EntryValveExecutor links to the first IncrementalExecutor corresponding to the minimum duration, and the rest of the IncrementalExecutors link in ascending order of durations. A ComplexEventChunk received by a certain executor would thus be handed over to next executor in-line.

Method Summary

Modifier and Type	Method and Description
void	execute(ComplexEventChunk complexEventChunk) Execute the handed StreamEvent
Executor	getNextExecutor() Get next executor element in the execution chain.
void	setNextExecutor(Executor executor) Set next executor element in execution chain

Method Detail

execute

void execute(ComplexEventChunk complexEventChunk)

Execute the handed StreamEvent

Parameters:

complexEventChunk - event chunk to be processed

getNextExecutor

Executor getNextExecutor()

Get next executor element in the execution chain. Executed event should be sent to next executor

Returns:

next executor

setNextExecutor

void setNextExecutor(Executor executor)

Set next executor element in execution chain