Struct Transaction 

pub struct Transaction(/* private fields */);

Implementations

impl Transaction

pub fn testing() -> Transaction

impl Transaction

pub fn new( store: TransactionStore, single: TransactionSingleVersion, event_bus: EventBus, ) -> Transaction

impl Transaction

pub fn version(&self) -> Result<CommitVersion, Error>

pub fn begin_query(&self) -> Result<QueryTransaction, Error>

impl Transaction

pub fn begin_command(&self) -> Result<CommandTransaction, Error>

impl Transaction

pub fn get( &self, key: &EncodedKey, version: CommitVersion, ) -> Result<Option<Committed>, Error>

pub fn contains_key( &self, key: &EncodedKey, version: CommitVersion, ) -> Result<bool, Error>

pub fn range_batched( &self, range: EncodedKeyRange, version: CommitVersion, batch_size: u64, ) -> Result<<TransactionStore as MultiVersionRange>::RangeIter<'_>, Error>

pub fn range( &self, range: EncodedKeyRange, version: CommitVersion, ) -> Result<<TransactionStore as MultiVersionRange>::RangeIter<'_>, Error>

pub fn range_rev_batched( &self, range: EncodedKeyRange, version: CommitVersion, batch_size: u64, ) -> Result<<TransactionStore as MultiVersionRangeRev>::RangeIterRev<'_>, Error>

pub fn range_rev( &self, range: EncodedKeyRange, version: CommitVersion, ) -> Result<<TransactionStore as MultiVersionRangeRev>::RangeIterRev<'_>, Error>

impl Transaction

pub fn try_wait_for_watermark( &self, version: CommitVersion, timeout: Duration, ) -> Result<(), AwaitWatermarkError>

Wait for the watermark to reach the specified version. Returns Ok(()) if the watermark reaches the version within the timeout, or Err(AwaitWatermarkError) if the timeout expires.

pub fn current_version(&self) -> Result<CommitVersion, Error>

Get the current version from the transaction manager

pub fn done_until(&self) -> CommitVersion

Returns the highest version where ALL prior versions have completed. This is useful for CDC polling to know the safe upper bound for fetching CDC events - all events up to this version are guaranteed to be in storage.

pub fn watermarks(&self) -> (CommitVersion, CommitVersion)

Returns (query_done_until, command_done_until) for debugging watermark state.

Trait Implementations

impl Clone for Transaction

fn clone(&self) -> Transaction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Deref for Transaction

type Target = Inner

The resulting type after dereferencing.

fn deref(&self) -> &<Transaction as Deref>::Target

Dereferences the value.

impl MultiVersionTransaction for Transaction

type Query = QueryTransaction

type Command = CommandTransaction

fn begin_query( &self, ) -> Result<<Transaction as MultiVersionTransaction>::Query, Error>

fn begin_command( &self, ) -> Result<<Transaction as MultiVersionTransaction>::Command, Error>

fn with_query<F, R>(&self, f: F) -> Result<R, Error>

where F: FnOnce(&mut Self::Query) -> Result<R, Error>,

fn with_command<F, R>(&self, f: F) -> Result<R, Error>

where F: FnOnce(&mut Self::Command) -> Result<R, Error>,

impl WithEventBus for Transaction

fn event_bus(&self) -> &EventBus