Class TailRetentionEventCompactor

java.lang.Object

com.google.adk.summarizer.TailRetentionEventCompactor

All Implemented Interfaces:

EventCompactor

public final class TailRetentionEventCompactor
extends Object
implements EventCompactor

This class performs event compaction by retaining the tail of the event stream.

• Keeps the retentionSize most recent events raw.
• Compacts all events that never compacted and older than the retained tail, including the most recent compaction event, into a new summary event.
• Triggers compaction only if the prompt token count exceeds the tokenThreshold.
• The new summary event is generated by the BaseEventSummarizer.
• Appends this new summary event to the end of the event stream.

This compactor produces a rolling summary. Each new compaction event includes the content of the previous compaction event (if any) along with new events, effectively superseding all prior compactions.

Constructor Summary

Constructors

Constructor	Description
TailRetentionEventCompactor(BaseEventSummarizer summarizer, int retentionSize, int tokenThreshold)

Method Summary

Modifier and Type	Method	Description
io.reactivex.rxjava3.core.Completable	compact(Session session, BaseSessionService sessionService)	Compacts events in the given session.

Methods inherited from class Object

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

Constructor Details

TailRetentionEventCompactor

public TailRetentionEventCompactor(BaseEventSummarizer summarizer,
 int retentionSize,
 int tokenThreshold)

Method Details

compact

public io.reactivex.rxjava3.core.Completable compact(Session session,
 BaseSessionService sessionService)

Description copied from interface: EventCompactor

Compacts events in the given session. If there is compaction happened, the new compaction event will be appended to the given BaseSessionService.

Specified by:

compact in interface EventCompactor

Parameters:

session - the session containing the events to be compacted.

sessionService - the session service for appending the new compaction event.

Returns:

the Event containing the events summary.