Struct InMemoryHistoryProvider 

pub struct InMemoryHistoryProvider { /* private fields */ }

In-memory HistoryProvider: keeps history in an Arc<Mutex<Vec<Message>>>, shared across clones.

Implementations

impl InMemoryHistoryProvider

pub fn new() -> InMemoryHistoryProvider

An empty history provider.

pub fn with_messages(messages: Vec<Message>) -> InMemoryHistoryProvider

A history provider seeded with messages.

pub fn list_messages(&self) -> Vec<Message>

The stored messages, in chronological order.

pub fn to_dict(&self) -> Value

Serialize the stored history to {"messages": [...]}.

pub fn from_dict(state: &Value) -> Result<InMemoryHistoryProvider, Error>

Reconstruct a provider from state produced by InMemoryHistoryProvider::to_dict.

Trait Implementations

impl Clone for InMemoryHistoryProvider

fn clone(&self) -> InMemoryHistoryProvider

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl ContextProvider for InMemoryHistoryProvider

fn before_run<'life0, 'life1, 'async_trait>( &'life0 self, ctx: &'life1 mut SessionContext, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, InMemoryHistoryProvider: 'async_trait,

Called before the model is invoked; mutate ctx to inject instructions, messages, and/or tools. Read ctx.input_messages / ctx.session_id.

fn after_run<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, request_messages: &'life1 [Message], response_messages: &'life2 [Message], error: Option<&'life3 Error>, ) -> Pin<Box<dyn Future<Output = Result<(), Error>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait, InMemoryHistoryProvider: 'async_trait,

Called after an invocation completes, on BOTH success and failure. On success, error is None and response_messages holds the output. On failure, error is Some and response_messages is empty.

fn is_history_provider(&self) -> bool

Whether this provider manages conversation history (a HistoryProvider). Agent and WorkflowAgent use this to detect an already-attached history provider among a session’s context_providers and avoid auto-attaching a redundant InMemoryHistoryProvider. Defaults to false; history providers override it to true.

impl Default for InMemoryHistoryProvider

fn default() -> InMemoryHistoryProvider

Returns the “default value” for a type.

impl HistoryProvider for InMemoryHistoryProvider