Struct PrefixDatabaseTransaction

struct PrefixDatabaseTransaction<Inner> {
    inner: Inner,
    global_dbtx_access_token: Option<GlobalDBTxAccessToken>,
    prefix: Vec<u8>,
}

A database transactions that wraps an inner one and adds a prefix to all operations, effectively creating an isolated partition.

Produced by PrefixDatabase.

Fields

inner: Inner

global_dbtx_access_token: Option<GlobalDBTxAccessToken>

prefix: Vec<u8>

Implementations

impl<Inner> PrefixDatabaseTransaction<Inner>

fn get_full_key(&self, key: &[u8]) -> Vec<u8>

fn get_full_range(&self, range: Range<&[u8]>) -> Range<Vec<u8>>

fn adapt_prefix_stream( stream: PrefixStream<'_>, prefix_len: usize, ) -> PrefixStream<'_>

Trait Implementations

impl<Inner: Debug> Debug for PrefixDatabaseTransaction<Inner>

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

Formats the value using the given formatter.

impl<Inner> IDatabaseTransaction for PrefixDatabaseTransaction<Inner>

where Inner: IDatabaseTransaction,

fn commit_tx<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Commit the transaction

fn is_global(&self) -> bool

Is global database

impl<Inner> IDatabaseTransactionOps for PrefixDatabaseTransaction<Inner>

where Inner: IDatabaseTransactionOps,

fn rollback_tx_to_savepoint<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

fn set_tx_savepoint<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Create a savepoint during the transaction that can be rolled back to using rollback_tx_to_savepoint. Rolling back to the savepoint will atomically remove the writes that were applied since the savepoint was created.

impl<Inner> IDatabaseTransactionOpsCore for PrefixDatabaseTransaction<Inner>

where Inner: IDatabaseTransactionOpsCore,

fn raw_insert_bytes<'life0, 'life1, 'life2, 'async_trait>( &'life0 mut self, key: &'life1 [u8], value: &'life2 [u8], ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Insert entry

fn raw_get_bytes<'life0, 'life1, 'async_trait>( &'life0 mut self, key: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Get key value

fn raw_remove_entry<'life0, 'life1, 'async_trait>( &'life0 mut self, key: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Remove entry by key

fn raw_find_by_prefix<'life0, 'life1, 'async_trait>( &'life0 mut self, key_prefix: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<PrefixStream<'_>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns an stream of key-value pairs with keys that start with key_prefix, sorted by key.

fn raw_find_by_prefix_sorted_descending<'life0, 'life1, 'async_trait>( &'life0 mut self, key_prefix: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<PrefixStream<'_>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Same as Self::raw_find_by_prefix but the order is descending by key.

fn raw_find_by_range<'life0, 'life1, 'async_trait>( &'life0 mut self, range: Range<&'life1 [u8]>, ) -> Pin<Box<dyn Future<Output = Result<PrefixStream<'_>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns an stream of key-value pairs with keys within a range, sorted by key. Range is an (half-open) range bounded inclusively below and exclusively above.

fn raw_remove_by_prefix<'life0, 'life1, 'async_trait>( &'life0 mut self, key_prefix: &'life1 [u8], ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete keys matching prefix