io.siddhi.core.util

Class Scheduler

java.lang.Object

io.siddhi.core.util.Scheduler

All Implemented Interfaces:

ExternalReferencedHolder

public class Scheduler
extends Object
implements ExternalReferencedHolder

Scheduler implementation to take periodic snapshots

Field Summary

Fields

Modifier and Type	Field and Description
protected String	queryName

Constructor Summary

Constructors

Constructor and Description
Scheduler(Schedulable singleThreadEntryValve, SiddhiQueryContext siddhiQueryContext)

Method Summary

Modifier and Type	Method and Description
void	init(LockWrapper lockWrapper, String queryName)
void	notifyAt(long time)
void	setLatencyTracker(LatencyTracker latencyTracker)
void	setStreamEventFactory(StreamEventFactory streamEventFactory)
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.
void	switchToLiveMode() Schedule events which are not scheduled in the queue when switching back from event time to system current time
void	switchToPlayBackMode() this can be used to release the acquired resources for processing.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

queryName

protected String queryName

Constructor Detail

Scheduler

public Scheduler(Schedulable singleThreadEntryValve,
                 SiddhiQueryContext siddhiQueryContext)

Method Detail

init

public void init(LockWrapper lockWrapper,
                 String queryName)

notifyAt

public void notifyAt(long time)

setStreamEventFactory

public void setStreamEventFactory(StreamEventFactory streamEventFactory)

setLatencyTracker

public void setLatencyTracker(LatencyTracker latencyTracker)

switchToLiveMode

public void switchToLiveMode()

Schedule events which are not scheduled in the queue when switching back from event time to system current time

switchToPlayBackMode

public void switchToPlayBackMode()

this can be used to release the acquired resources for processing.

stop

public void stop()

Description copied from interface: ExternalReferencedHolder

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.

Specified by:

stop in interface ExternalReferencedHolder

start

public void start()

Description copied from interface: ExternalReferencedHolder

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.

Specified by:

start in interface ExternalReferencedHolder