Struct LocalRangeChangeJournal 

pub struct LocalRangeChangeJournal { /* private fields */ }

Captures the pre-write SQL keyspace for one local transaction. Calling Self::stage before the transaction commits records the exact row/index delta in that same durable boundary.

Implementations

impl LocalRangeChangeJournal

pub fn capture<'txn, T: KVTransaction<'txn>>( transaction: &mut T, scope: RangeChangeJournalScope, ) -> CoreResult<Self>

Captures the row and B-tree secondary-index state visible at transaction start. Catalog keys, sequence keys, and journal metadata are excluded.

pub fn stage<'txn, T: KVTransaction<'txn>>( self, transaction: &mut T, ) -> CoreResult<Option<RangeChangeRecord>>

Stages one immutable range-change record when SQL row/index state changed. No epoch/outbox entry is written when the final state matches the captured state, which makes an already-applied replay a no-op.

Trait Implementations

impl Clone for LocalRangeChangeJournal

fn clone(&self) -> LocalRangeChangeJournal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LocalRangeChangeJournal

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

Formats the value using the given formatter.