Trait reth_db_api::transaction::DbTx
source · pub trait DbTx: Send + Sync {
type Cursor<T: Table>: DbCursorRO<T> + Send + Sync;
type DupCursor<T: DupSort>: DbDupCursorRO<T> + DbCursorRO<T> + Send + Sync;
// Required methods
fn get<T: Table>(
&self,
key: T::Key,
) -> Result<Option<T::Value>, DatabaseError>;
fn commit(self) -> Result<bool, DatabaseError>;
fn abort(self);
fn cursor_read<T: Table>(&self) -> Result<Self::Cursor<T>, DatabaseError>;
fn cursor_dup_read<T: DupSort>(
&self,
) -> Result<Self::DupCursor<T>, DatabaseError>;
fn entries<T: Table>(&self) -> Result<usize, DatabaseError>;
fn disable_long_read_transaction_safety(&mut self);
}
Expand description
Read only transaction
Required Associated Types§
sourcetype DupCursor<T: DupSort>: DbDupCursorRO<T> + DbCursorRO<T> + Send + Sync
type DupCursor<T: DupSort>: DbDupCursorRO<T> + DbCursorRO<T> + Send + Sync
DupCursor
type for this read-only transaction
Required Methods§
sourcefn commit(self) -> Result<bool, DatabaseError>
fn commit(self) -> Result<bool, DatabaseError>
Commit for read only transaction will consume and free transaction and allows freeing of memory pages
sourcefn cursor_read<T: Table>(&self) -> Result<Self::Cursor<T>, DatabaseError>
fn cursor_read<T: Table>(&self) -> Result<Self::Cursor<T>, DatabaseError>
Iterate over read only values in table.
sourcefn cursor_dup_read<T: DupSort>(
&self,
) -> Result<Self::DupCursor<T>, DatabaseError>
fn cursor_dup_read<T: DupSort>( &self, ) -> Result<Self::DupCursor<T>, DatabaseError>
Iterate over read only values in dup sorted table.
sourcefn entries<T: Table>(&self) -> Result<usize, DatabaseError>
fn entries<T: Table>(&self) -> Result<usize, DatabaseError>
Returns number of entries in the table.
sourcefn disable_long_read_transaction_safety(&mut self)
fn disable_long_read_transaction_safety(&mut self)
Disables long-lived read transaction safety guarantees.
Object Safety§
This trait is not object safe.