Package com.google.genkit.ai.agent

Interface SnapshotReader<S>

Type Parameters:

S - the type of custom session state

All Known Subinterfaces:

SessionStore<S>

All Known Implementing Classes:

CosmosSessionStore, DynamoDbSessionStore, FileSessionStore, FirestoreSessionStore, InMemorySessionStore, MongoSessionStore, PostgresSessionStore

public interface SnapshotReader<S>

Read side of a session store.

Method Summary

Modifier and Type	Method	Description
SessionSnapshot<S>	getSnapshot(GetSnapshotOptions opts)	Retrieves a session snapshot.

Method Details

getSnapshot

SessionSnapshot<S> getSnapshot(GetSnapshotOptions opts)

Retrieves a session snapshot.

When GetSnapshotOptions.getSnapshotId() is set the store returns that specific snapshot. When GetSnapshotOptions.getSessionId() is set the store resolves and returns the latest leaf snapshot for that session. Returns null if no matching snapshot exists.

Parameters:

opts - options specifying which snapshot to retrieve; exactly one of snapshotId/sessionId must be set

Returns:

the matching snapshot, or null if none exists