io.siddhi.core.trigger

Class CronTrigger

java.lang.Object

io.siddhi.core.trigger.AbstractTrigger

io.siddhi.core.trigger.CronTrigger

All Implemented Interfaces:

Trigger, ExternalReferencedHolder, org.quartz.Job

public class CronTrigger
extends AbstractTrigger
implements org.quartz.Job

Implementation of Trigger which will trigger events based on a cron expression.

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.apache.log4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
CronTrigger()

Method Summary

Modifier and Type	Method and Description
void	execute(org.quartz.JobExecutionContext jobExecutionContext)
String	getId()
io.siddhi.query.api.definition.TriggerDefinition	getTriggerDefinition()
void	init(io.siddhi.query.api.definition.TriggerDefinition triggerDefinition, SiddhiAppContext siddhiAppContext, StreamJunction streamJunction)
boolean	isStateful()
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.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.apache.log4j.Logger LOG

Constructor Detail

CronTrigger

public CronTrigger()

Method Detail

init

public void init(io.siddhi.query.api.definition.TriggerDefinition triggerDefinition,
                 SiddhiAppContext siddhiAppContext,
                 StreamJunction streamJunction)

Specified by:

init in class AbstractTrigger

getTriggerDefinition

public io.siddhi.query.api.definition.TriggerDefinition getTriggerDefinition()

Specified by:

getTriggerDefinition in interface Trigger

getId

public String getId()

Specified by:

getId in interface Trigger

start

public 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.

Specified by:

start in interface Trigger

Specified by:

start in interface ExternalReferencedHolder

stop

public 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.

Specified by:

stop in interface Trigger

Specified by:

stop in interface ExternalReferencedHolder

execute

public void execute(org.quartz.JobExecutionContext jobExecutionContext)
             throws org.quartz.JobExecutionException

Specified by:

execute in interface org.quartz.Job

Throws:

org.quartz.JobExecutionException

isStateful

public boolean isStateful()

Specified by:

isStateful in interface Trigger