Struct ckb_rocksdb::TransactionSnapshot

pub struct TransactionSnapshot<'a, T> { /* private fields */ }

Trait Implementations

impl<'a, T> ConstHandle<rocksdb_snapshot_t> for TransactionSnapshot<'a, T>

fn const_handle(&self) -> *const rocksdb_snapshot_t

impl<'a, T> Drop for TransactionSnapshot<'a, T>

fn drop(&mut self)

Executes the destructor for this type.

impl<'a, T> GetCF<ReadOptions> for TransactionSnapshot<'a, T>where Transaction<'a, T>: GetCF<ReadOptions>,

fn get_cf_full<K: AsRef<[u8]>>( &self, cf: Option<&ColumnFamily>, key: K, readopts: Option<&ReadOptions> ) -> Result<Option<DBVector>, Error>

fn get_cf<K: AsRef<[u8]>>( &self, cf: &ColumnFamily, key: K ) -> Result<Option<DBVector>, Error>

fn get_cf_opt<K: AsRef<[u8]>>( &self, cf: &ColumnFamily, key: K, readopts: &R ) -> Result<Option<DBVector>, Error>

impl<'a, T> GetPinnedCF<'a> for TransactionSnapshot<'a, T>

type ColumnFamily = &'a ColumnFamily

type ReadOptions = &'a ReadOptions

fn get_pinned_cf_full<K: AsRef<[u8]>>( &'a self, cf: Option<Self::ColumnFamily>, key: K, readopts: Option<Self::ReadOptions> ) -> Result<Option<DBPinnableSlice<'a>>, Error>

Return the value associated with a key using RocksDB’s PinnableSlice so as to avoid unnecessary memory copy.

fn get_pinned_cf<K: AsRef<[u8]>>( &'a self, cf: Self::ColumnFamily, key: K ) -> Result<Option<DBPinnableSlice<'a>>, Error>

Return the value associated with a key using RocksDB’s PinnableSlice so as to avoid unnecessary memory copy.

fn get_pinned_cf_opt<K: AsRef<[u8]>>( &'a self, cf: Self::ColumnFamily, key: K, readopts: Self::ReadOptions ) -> Result<Option<DBPinnableSlice<'a>>, Error>

Return the value associated with a key using RocksDB’s PinnableSlice so as to avoid unnecessary memory copy.

impl<T: Iterate> Iterate for TransactionSnapshot<'_, T>

fn get_raw_iter<'a: 'b, 'b>( &'a self, readopts: &ReadOptions ) -> DBRawIterator<'b>

fn get_iter<'a: 'b, 'b>( &'a self, readopts: &ReadOptions, mode: IteratorMode<'_> ) -> DBIterator<'b>

fn iterator_opt<'a: 'b, 'b>( &'a self, mode: IteratorMode<'_>, readopts: &ReadOptions ) -> DBIterator<'b>

fn iterator<'a: 'b, 'b>(&'a self, mode: IteratorMode<'_>) -> DBIterator<'b>

fn full_iterator<'a: 'b, 'b>(&'a self, mode: IteratorMode<'_>) -> DBIterator<'b>

Opens an interator with set_total_order_seek enabled. This must be used to iterate across prefixes when set_memtable_factory has been called with a Hash-based implementation.

fn prefix_iterator<'a: 'b, 'b>(&'a self, prefix: &[u8]) -> DBIterator<'b>

fn raw_iterator<'a: 'b, 'b>(&'a self) -> DBRawIterator<'b>

impl<T: IterateCF> IterateCF for TransactionSnapshot<'_, T>

fn get_raw_iter_cf<'a: 'b, 'b>( &'a self, cf_handle: &ColumnFamily, readopts: &ReadOptions ) -> Result<DBRawIterator<'b>, Error>

fn get_iter_cf<'a: 'b, 'b>( &'a self, cf_handle: &ColumnFamily, readopts: &ReadOptions, mode: IteratorMode<'_> ) -> Result<DBIterator<'b>, Error>

fn iterator_cf_opt<'a: 'b, 'b>( &'a self, cf_handle: &ColumnFamily, mode: IteratorMode<'_>, readopts: &ReadOptions ) -> Result<DBIterator<'b>, Error>

Opens an interator using the provided ReadOptions. This is used when you want to iterate over a specific ColumnFamily with a modified ReadOptions

fn iterator_cf<'a: 'b, 'b>( &'a self, cf_handle: &ColumnFamily, mode: IteratorMode<'_> ) -> Result<DBIterator<'b>, Error>

fn full_iterator_cf<'a: 'b, 'b>( &'a self, cf_handle: &ColumnFamily, mode: IteratorMode<'_> ) -> Result<DBIterator<'b>, Error>

fn prefix_iterator_cf<'a: 'b, 'b>( &'a self, cf_handle: &ColumnFamily, prefix: &[u8] ) -> Result<DBIterator<'b>, Error>

fn raw_iterator_cf<'a: 'b, 'b>( &'a self, cf_handle: &ColumnFamily ) -> Result<DBRawIterator<'b>, Error>

impl<'a, T> MultiGet<ReadOptions> for TransactionSnapshot<'a, T>where Transaction<'a, T>: MultiGet<ReadOptions>,

fn multi_get_full<K, I>( &self, keys: I, readopts: Option<&ReadOptions> ) -> Vec<Result<Option<DBVector>, Error>>where K: AsRef<[u8]>, I: IntoIterator<Item = K>,

fn multi_get<K, I>(&self, keys: I) -> Vec<Result<Option<DBVector>, Error>>where K: AsRef<[u8]>, I: IntoIterator<Item = K>,

fn multi_get_opt<K, I>( &self, keys: I, readopts: &R ) -> Vec<Result<Option<DBVector>, Error>>where K: AsRef<[u8]>, I: IntoIterator<Item = K>,

impl<'a, T> MultiGetCF<ReadOptions> for TransactionSnapshot<'a, T>where Transaction<'a, T>: MultiGet<ReadOptions>,

fn multi_get_cf_full<'m, K, I>( &self, keys: I, readopts: Option<&ReadOptions> ) -> Vec<Result<Option<DBVector>, Error>>where K: AsRef<[u8]>, I: IntoIterator<Item = (&'m ColumnFamily, K)>,

fn multi_get_cf<'a, K, I>( &self, keys_cf: I ) -> Vec<Result<Option<DBVector>, Error>>where K: AsRef<[u8]>, I: IntoIterator<Item = (&'a ColumnFamily, K)>,

fn multi_get_cf_opt<'a, K, I>( &self, keys_cf: I, readopts: &R ) -> Vec<Result<Option<DBVector>, Error>>where K: AsRef<[u8]>, I: IntoIterator<Item = (&'a ColumnFamily, K)>,

impl<'a, T> Read for TransactionSnapshot<'a, T>