dev.langchain4j.store.memory.chat

Interface ChatMemoryStore

All Known Implementing Classes:

InMemoryChatMemoryStore

public interface ChatMemoryStore

Represents a store for the ChatMemory state. Allows for flexibility in terms of where and how chat memory is stored. Currently, the only implementation available is InMemoryChatMemoryStore. We are in the process of adding ready implementations for popular stores like SQL DBs, document stores, etc. In the meantime, you can implement this interface to connect to any storage of your choice.

Method Summary

Modifier and Type	Method and Description
void	deleteMessages(Object memoryId) Deletes all messages for a specified chat memory.
List<ChatMessage>	getMessages(Object memoryId) Retrieves messages for a specified chat memory.
void	updateMessages(Object memoryId, List<ChatMessage> messages) Updates messages for a specified chat memory.

Method Detail

getMessages

List<ChatMessage> getMessages(Object memoryId)

Retrieves messages for a specified chat memory.

Parameters:

memoryId - The ID of the chat memory.

Returns:

List of messages for the specified chat memory. Must not be null. Can be deserialized from JSON using ChatMessageDeserializer.

updateMessages

void updateMessages(Object memoryId,
                    List<ChatMessage> messages)

Updates messages for a specified chat memory.

Parameters:

memoryId - The ID of the chat memory.

messages - List of messages for the specified chat memory, that represent the current state of the ChatMemory. Can be serialized to JSON using ChatMessageSerializer.

deleteMessages

void deleteMessages(Object memoryId)

Deletes all messages for a specified chat memory.

Parameters:

memoryId - The ID of the chat memory.