Struct SavepointManager 

pub struct SavepointManager { /* private fields */ }

Savepoint manager for all transactions

Implementations

impl SavepointManager

pub fn new() -> Self

Create new savepoint manager

pub fn create_savepoint( &self, txn_id: TxnId, name: String, lsn: Lsn, lock_count: usize, write_set_index: usize, ) -> Result<Savepoint, SavepointError>

Create a savepoint for a transaction

pub fn get_savepoint(&self, txn_id: TxnId, name: &str) -> Option<Savepoint>

Get a savepoint

pub fn release_savepoint( &self, txn_id: TxnId, name: &str, ) -> Result<Savepoint, SavepointError>

Release a savepoint

pub fn rollback_to_savepoint( &self, txn_id: TxnId, name: &str, ) -> Result<(Savepoint, Vec<String>), SavepointError>

Rollback to a savepoint

pub fn savepoint_exists(&self, txn_id: TxnId, name: &str) -> bool

Check if savepoint exists

pub fn savepoint_depth(&self, txn_id: TxnId) -> usize

Get savepoint depth for transaction

pub fn get_savepoint_names(&self, txn_id: TxnId) -> Vec<String>

Get all savepoint names for transaction

pub fn cleanup_transaction(&self, txn_id: TxnId)

Clean up savepoints for a transaction

pub fn stats(&self) -> SavepointStats

Get statistics

Trait Implementations

impl Default for SavepointManager

fn default() -> Self

Returns the “default value” for a type.