Struct StateTransaction 

pub struct StateTransaction { /* private fields */ }

A transaction over AgentState that can be committed or rolled back.

Created via AgentState::transaction(). Writes are staged against an isolated working copy and only become visible when commit() is called.

Implementations

impl StateTransaction

pub async fn get<T: DeserializeOwned>(&self, key: &str) -> Result<T>

Read a value within the transaction.

pub async fn set<T: Serialize>(&self, key: &str, value: T) -> Result<()>

Write a value within the transaction.

pub async fn commit(self) -> Result<()>

Commit the transaction. After this call, staged changes are applied atomically.

Returns an error if the underlying state was modified concurrently since this transaction was created.

pub async fn rollback(self)

Roll back all staged changes.

Trait Implementations

impl Drop for StateTransaction

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.