Package dev.langchain4j.memory.chat

Class TokenWindowChatMemory.Builder

java.lang.Object

dev.langchain4j.memory.chat.TokenWindowChatMemory.Builder

Enclosing class:

TokenWindowChatMemory

public static class TokenWindowChatMemory.Builder
extends Object

Constructor Summary

Constructors

Constructor	Description
Builder()

Method Summary

Modifier and Type	Method	Description
TokenWindowChatMemory	build()
TokenWindowChatMemory.Builder	chatMemoryStore(ChatMemoryStore store)
TokenWindowChatMemory.Builder	id(Object id)
TokenWindowChatMemory.Builder	maxTokens(Integer maxTokens, TokenCountEstimator tokenCountEstimator)

Methods inherited from class java.lang.Object

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

Constructor Details

Builder

public Builder()

Method Details

id

public TokenWindowChatMemory.Builder id(Object id)

Parameters:

id - The ID of the ChatMemory. If not provided, a "default" will be used.

Returns:

builder

maxTokens

public TokenWindowChatMemory.Builder maxTokens(Integer maxTokens,
 TokenCountEstimator tokenCountEstimator)

Parameters:

maxTokens - The maximum number of tokens to retain. Chat memory will retain as many of the most recent messages as can fit into maxTokens. Messages are indivisible. If an old message doesn't fit, it is evicted completely.

tokenCountEstimator - A TokenCountEstimator responsible for counting tokens in the messages.

Returns:

builder

chatMemoryStore

public TokenWindowChatMemory.Builder chatMemoryStore(ChatMemoryStore store)

Parameters:

store - The chat memory store responsible for storing the chat memory state. If not provided, an SingleSlotChatMemoryStore will be used.

Returns:

builder

build

public TokenWindowChatMemory build()