PeriodicTrigger (Siddhi Core 5.1.30 API)

java.lang.Object
- io.siddhi.core.trigger.AbstractTrigger
- - io.siddhi.core.trigger.PeriodicTrigger

All Implemented Interfaces:

Trigger, ExternalReferencedHolder
```
public class PeriodicTrigger
extends AbstractTrigger
```
Implementation of Trigger which will trigger events based on a pre-defined period.

Constructor Summary

Constructors
Constructor Description

PeriodicTrigger()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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

- Constructor Detail
  - PeriodicTrigger
```
public PeriodicTrigger()
```
- 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()
```
  - getId
```
public String getId()
```
  - 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.
  - 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.
  - isStateful
```
public boolean isStateful()
```