Struct MemWriteTx 

pub struct MemWriteTx<'a> { /* private fields */ }

A single-writer transaction. Holds the write guard (single-writer) and buffers mutations in overlay; commit applies them to the base map, drop discards.

Trait Implementations

impl Readable for MemWriteTx<'_>

fn get_raw(&self, table: &str, key: &[u8]) -> StoreResult<Option<Vec<u8>>>

Fetch the raw value bytes for key in table, or None if absent.

fn range_raw( &self, table: &str, lo: &[u8], hi: &[u8], ) -> StoreResult<Vec<(Vec<u8>, Vec<u8>)>>

Return (key, value) byte pairs in the half-open range [lo, hi), in ascending key (byte-lexicographic) order. Because keys are written in the order-preserving encoding (see crate::codec), this is logical key order.

impl WriteTx for MemWriteTx<'_>

fn put_raw(&mut self, table: &str, key: &[u8], val: &[u8]) -> StoreResult<()>

Insert or overwrite key → val in table.

fn delete_raw(&mut self, table: &str, key: &[u8]) -> StoreResult<bool>

Remove key from table. Returns true if a value was present.

fn commit(self) -> StoreResult<()>

Atomically apply every buffered mutation. Consuming self makes “use after commit” a compile error and “drop without commit” the rollback path.