Class LlmEventSummarizer

java.lang.Object

com.google.adk.summarizer.LlmEventSummarizer

All Implemented Interfaces:

BaseEventSummarizer

public final class LlmEventSummarizer
extends Object
implements BaseEventSummarizer

An LLM-based event summarizer for sliding window compaction.

Constructor Summary

Constructors

Constructor	Description
LlmEventSummarizer(BaseLlm baseLlm)
LlmEventSummarizer(BaseLlm baseLlm, @Nullable String promptTemplate)	Creates a summarizer with the given prompt template; null selects the default template.
LlmEventSummarizer(BaseLlm baseLlm, @Nullable String promptTemplate, InstantSource instantSource, UuidProvider uuidProvider)	Creates a summarizer whose compaction events draw their id, invocation id, and timestamp from the given sources.

Method Summary

Modifier and Type	Method	Description
io.reactivex.rxjava3.core.Maybe<Event>	summarizeEvents(List<Event> events)	Compact a list of events into a single event.

Methods inherited from class Object

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

Constructor Details

LlmEventSummarizer

public LlmEventSummarizer(BaseLlm baseLlm)

LlmEventSummarizer

public LlmEventSummarizer(BaseLlm baseLlm,
 @Nullable String promptTemplate)

Creates a summarizer with the given prompt template; null selects the default template.

LlmEventSummarizer

public LlmEventSummarizer(BaseLlm baseLlm,
 @Nullable String promptTemplate,
 InstantSource instantSource,
 UuidProvider uuidProvider)

Creates a summarizer whose compaction events draw their id, invocation id, and timestamp from the given sources. Passing null as promptTemplate selects the default template.

Method Details

summarizeEvents

public io.reactivex.rxjava3.core.Maybe<Event> summarizeEvents(List<Event> events)

Description copied from interface: BaseEventSummarizer

Compact a list of events into a single event.

If compaction failed, return Maybe.empty(). Otherwise, compact into a content and return it.

This method will summarize the events and return a new summary event indicating the range of events it summarized.

Specified by:

summarizeEvents in interface BaseEventSummarizer

Parameters:

events - Events to compact.

Returns:

The new compacted event, or Maybe.empty() if no compaction happened.