Struct InMemoryReadTx 

pub struct InMemoryReadTx { /* private fields */ }

Trait Implementations

impl StorageReadView for InMemoryReadTx

fn get(&self, table: &str, key: &[u8]) -> Result<Option<Vec<u8>>, StoreError>

Retrieves a value by key from the specified table.

fn prefix_iterator( &self, table: &str, prefix: &[u8], ) -> Result<Box<dyn Iterator<Item = PrefixResult> + '_>, StoreError>

Returns an iterator over all key-value pairs with the given prefix.

fn first_key(&self, table: &'static str) -> Result<Option<Vec<u8>>, StoreError>

Returns the lowest key in table by lexicographic order, or None if the table is empty. Backends that support forward iteration (e.g. RocksDB IteratorMode::Start) should implement this in O(1).

fn last_key(&self, table: &'static str) -> Result<Option<Vec<u8>>, StoreError>

Returns the highest key in table by lexicographic order, or None if the table is empty. Backends that support reverse iteration (e.g. RocksDB IteratorMode::End) should implement this in O(1).

fn multi_get( &self, table: &'static str, keys: &[&[u8]], ) -> Vec<Result<Option<Vec<u8>>, StoreError>>

Retrieves multiple values by key from the specified table. Returns results in the same order as the input keys. Backends that support batched reads (e.g. RocksDB multi_get_cf) should override this for better throughput. Callers should not assume multi_get is asymptotically faster than get; on backends without a batched read primitive (e.g. the in-memory backend) the default impl below is equivalent to N independent get calls.