com.google.cloud.dataflow.sdk.transforms.windowing

Class Trigger.TriggerContext

java.lang.Object

com.google.cloud.dataflow.sdk.transforms.windowing.Trigger.TriggerContext

Direct Known Subclasses:

Trigger.OnElementContext, Trigger.OnMergeContext, Trigger.OnTimerContext

Enclosing class:

Trigger<W extends BoundedWindow>

public abstract class Trigger.TriggerContext
extends Object

Information accessible to all of the callbacks that are executed on a Trigger.

Constructor Summary

Constructors

Constructor and Description
TriggerContext()

Method Summary

Modifier and Type	Method and Description
abstract Instant	currentProcessingTime() The current processing time.
abstract void	deleteTimer(Instant timestamp, com.google.cloud.dataflow.sdk.util.TimeDomain domain) Removes the timer set in this trigger context for the given Instant and TimeDomain.
abstract Trigger.TriggerContext	forTrigger(com.google.cloud.dataflow.sdk.util.ExecutableTrigger<W> trigger) Create a sub-context for the given sub-trigger.
abstract com.google.cloud.dataflow.sdk.util.ReduceFn.StateContext	state() Returns the interface for accessing persistent state.
abstract Trigger.TriggerInfo<W>	trigger() Returns the interface for accessing trigger info.
abstract W	window() The window that the current context is executing in.

Methods inherited from class java.lang.Object

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

Constructor Detail

TriggerContext

public TriggerContext()

Method Detail

trigger

public abstract Trigger.TriggerInfo<W> trigger()

Returns the interface for accessing trigger info.

state

public abstract com.google.cloud.dataflow.sdk.util.ReduceFn.StateContext state()

Returns the interface for accessing persistent state.

window

public abstract W window()

The window that the current context is executing in.

forTrigger

public abstract Trigger.TriggerContext forTrigger(com.google.cloud.dataflow.sdk.util.ExecutableTrigger<W> trigger)

Create a sub-context for the given sub-trigger.

deleteTimer

public abstract void deleteTimer(Instant timestamp,
                                 com.google.cloud.dataflow.sdk.util.TimeDomain domain)

Removes the timer set in this trigger context for the given Instant and TimeDomain.

currentProcessingTime

public abstract Instant currentProcessingTime()

The current processing time.