Checkpointer

agents_core::persistence

Trait Checkpointer 

Source 
pub trait Checkpointer: Send + Sync {
    // Required methods
    fn save_state<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
        state: &'life2 AgentStateSnapshot,
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait;
    fn load_state<'life0, 'life1, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
    ) -> Pin<Box<dyn Future<Output = Result<Option<AgentStateSnapshot>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn delete_thread<'life0, 'life1, 'async_trait>(
        &'life0 self,
        thread_id: &'life1 ThreadId,
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn list_threads<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<ThreadId>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

Trait for persisting and retrieving agent state between conversation runs. This mirrors the LangGraph Checkpointer interface used in the Python implementation.

Required Methods§

Source

fn save_state<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, state: &'life2 AgentStateSnapshot, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Save the current agent state for a given thread.

Source

fn load_state<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<Option<AgentStateSnapshot>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Load the last saved state for a given thread. Returns None if no state exists for this thread.

Source

fn delete_thread<'life0, 'life1, 'async_trait>( &'life0 self, thread_id: &'life1 ThreadId, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete all saved state for a given thread.

Source

fn list_threads<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<ThreadId>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

List all thread IDs that have saved state.

Implementors§