Struct ConversationBufferWindowMemory 

pub struct ConversationBufferWindowMemory { /* private fields */ }

Conversation Buffer Window Memory

Keeps only the last k rounds of conversation to avoid overly long context.

Example

use lc_memory::ConversationBufferWindowMemory;

// Keep only the last 2 rounds
let mut memory = ConversationBufferWindowMemory::new(2);

Implementations

impl ConversationBufferWindowMemory

pub fn new(k: usize) -> Self

Create new window memory

Arguments

• k - Keep last k rounds (each round includes user message and AI message)

pub fn with_input_key(self, key: impl Into<String>) -> Self

Set input key name

pub fn with_output_key(self, key: impl Into<String>) -> Self

Set output key name

pub fn with_memory_key(self, key: impl Into<String>) -> Self

Set memory variable name

pub fn with_return_messages(self, return_messages: bool) -> Self

Set whether to return message objects

pub fn chat_memory(&self) -> &ChatMessageHistory

Get chat history

pub fn k(&self) -> usize

Get window size

Trait Implementations

impl BaseChatMemory for ConversationBufferWindowMemory

P0-1: ConversationBufferWindowMemory 实现 BaseChatMemory。

fn messages(&self) -> &[Message]

Get chat message list

fn add_message(&mut self, message: Message)

Add message

fn add_user_message(&mut self, content: &str)

Add user message

fn add_ai_message(&mut self, content: &str)

Add AI message

impl BaseMemory for ConversationBufferWindowMemory

fn memory_variables(&self) -> Vec<&str>

Get memory variable names

fn load_memory_variables<'life0, 'life1, 'async_trait>( &'life0 self, _inputs: &'life1 HashMap<String, String>, ) -> Pin<Box<dyn Future<Output = Result<HashMap<String, Value>, MemoryError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Load memory variables

fn save_context<'life0, 'life1, 'life2, 'async_trait>( &'life0 mut self, inputs: &'life1 HashMap<String, String>, outputs: &'life2 HashMap<String, String>, ) -> Pin<Box<dyn Future<Output = Result<(), MemoryError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Save context

fn clear<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<(), MemoryError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Clear memory

impl Debug for ConversationBufferWindowMemory

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ConversationBufferWindowMemory

fn default() -> Self

Returns the “default value” for a type.