Package io.siddhi.core.util.extension.holder

Interface ExternalReferencedHolder

All Known Implementing Classes:

AbstractStreamProcessor, AbstractTrigger, AggregateWindowProcessor, BatchingFindableWindowProcessor, BatchingWindowProcessor, BatchWindowProcessor, CronTrigger, CronWindowProcessor, DelayWindowProcessor, EmptyWindowProcessor, ExpressionBatchWindowProcessor, ExpressionWindowProcessor, ExternalTimeBatchWindowProcessor, ExternalTimeWindowProcessor, FrequentWindowProcessor, GroupingFindableWindowProcessor, GroupingWindowProcessor, HopingWindowProcessor, LengthBatchWindowProcessor, LengthWindowProcessor, LogStreamProcessor, LossyFrequentWindowProcessor, PeriodicTrigger, Pol2CartStreamFunctionProcessor, QueryRuntimeImpl, Scheduler, SessionWindowProcessor, SlidingFindableWindowProcessor, SlidingWindowProcessor, SortWindowProcessor, StartTrigger, StreamFunctionProcessor, StreamProcessor, TableWindowProcessor, TimeBatchWindowProcessor, TimeLengthWindowProcessor, TimeWindowProcessor, WindowProcessor, WindowWindowProcessor

public interface ExternalReferencedHolder

Primary interface used to give start and stop method to Siddhi components which will be called once during Siddhi start up and shutting down so that user can perform actions such as resource allocation and de-allocation.

Method Summary

Modifier and Type	Method	Description
void	start()	This will be called only once and this can be used to acquire required resources for the processing element.
void	stop()	This will be called only once and this can be used to release the acquired resources for processing.

Method Detail

start

void start()

This will be called only once and this can be used to acquire required resources for the processing element. This will be called after initializing the system and before starting to process the events.

stop

void stop()

This will be called only once and this can be used to release the acquired resources for processing. This will be called before shutting down the system.