Package org.apache.pulsar.functions.windowing

Interface Summary

Interface	Description
Event<T>	An event is a wrapper object that gets stored in the window.
EvictionContext	Context information that can be used by the eviction policy.
EvictionPolicy<T,S>	Eviction policy tracks events and decides whether an event should be evicted from the window or not.
TimestampExtractor<I>	Interface to be implemented for extracting timestamp from a tuple.
TriggerHandler	The callback fired by TriggerPolicy when the trigger condition is satisfied.
TriggerPolicy<T,S>	Triggers the window calculations based on the policy.
Window<T>	A view of events in a sliding window.
WindowLifecycleListener<T>	A callback for expiry, activation of events tracked by the WindowManager

Class Summary

Class	Description
DefaultEvictionContext
EventImpl<T>
WaterMarkEvent<T>	Watermark event used for tracking progress of time when processing event based ts.
WaterMarkEventGenerator<T>	Tracks tuples across input topics and periodically emits watermark events.
WindowContextImpl
WindowFunctionExecutor<I,O>
WindowImpl<T>	Holds the expired, new and current events in a window.
WindowManager<T>	Tracks a window of events and fires WindowLifecycleListener callbacks on expiry of events or activation of the window due to TriggerPolicy.
WindowUtils

Enum Summary

Enum	Description
EvictionPolicy.Action	The action to be taken when EvictionPolicy.evict(Event) is invoked.