Package org.apache.heron.api.windowing.triggers

Class AbstractBaseTriggerPolicy<T extends Serializable,S>

java.lang.Object

org.apache.heron.api.windowing.triggers.AbstractBaseTriggerPolicy<T,S>

All Implemented Interfaces:

TriggerPolicy<T,S>

Direct Known Subclasses:

CountTriggerPolicy, TimeTriggerPolicy, WatermarkCountTriggerPolicy, WatermarkTimeTriggerPolicy

public abstract class AbstractBaseTriggerPolicy<T extends Serializable,S>
extends Object
implements TriggerPolicy<T,S>

Field Summary

Fields

Modifier and Type	Field	Description
protected EvictionPolicy<T,?>	evictionPolicy
protected TriggerHandler	handler
protected Boolean	started
protected Map<String,Object>	topoConf
protected WindowManager<T>	windowManager

Constructor Summary

Constructors

Constructor	Description
AbstractBaseTriggerPolicy()	Set the requirements in the constructor

Method Summary

Modifier and Type	Method	Description
void	setEvictionPolicy(EvictionPolicy<T,?> evictionPolicy)	Set the eviction policy to whatever eviction policy to use this with
void	setTopologyConfig(Map<String,Object> config)	Sets the Config used for this topology
void	setTriggerHandler(TriggerHandler triggerHandler)	Set the trigger handler for this trigger policy to trigger
void	setWindowManager(WindowManager<T> windowManager)	Sets the window manager that uses this trigger policy
void	start()	Starts the trigger policy.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.heron.api.windowing.TriggerPolicy

getState, reset, restoreState, shutdown, track

Field Detail

handler

protected TriggerHandler handler

evictionPolicy

protected EvictionPolicy<T extends Serializable,?> evictionPolicy

windowManager

protected WindowManager<T extends Serializable> windowManager

started

protected Boolean started

topoConf

protected Map<String,Object> topoConf

Constructor Detail

AbstractBaseTriggerPolicy

public AbstractBaseTriggerPolicy()

Set the requirements in the constructor

Method Detail

setEvictionPolicy

public void setEvictionPolicy(EvictionPolicy<T,?> evictionPolicy)

Set the eviction policy to whatever eviction policy to use this with

Specified by:

setEvictionPolicy in interface TriggerPolicy<T extends Serializable,S>

Parameters:

evictionPolicy - the eviction policy

setTriggerHandler

public void setTriggerHandler(TriggerHandler triggerHandler)

Set the trigger handler for this trigger policy to trigger

Specified by:

setTriggerHandler in interface TriggerPolicy<T extends Serializable,S>

Parameters:

triggerHandler - the trigger handler

setWindowManager

public void setWindowManager(WindowManager<T> windowManager)

Sets the window manager that uses this trigger policy

Specified by:

setWindowManager in interface TriggerPolicy<T extends Serializable,S>

Parameters:

windowManager - the window manager

setTopologyConfig

public void setTopologyConfig(Map<String,Object> config)

Sets the Config used for this topology

Specified by:

setTopologyConfig in interface TriggerPolicy<T extends Serializable,S>

Parameters:

config - the configuration object

start

public void start()

Starts the trigger policy. This can be used during recovery to start the triggers after recovery is complete.

Specified by:

start in interface TriggerPolicy<T extends Serializable,S>