Struct QueryTransaction 

pub struct QueryTransaction { /* private fields */ }

Implementations

impl QueryTransaction

pub fn new( engine: TransactionSerializable, version: Option<CommitVersion>, ) -> Result<Self>

impl QueryTransaction

pub fn version(&self) -> CommitVersion

pub fn read_as_of_version_exclusive(&mut self, version: CommitVersion)

pub fn read_as_of_version_inclusive(&mut self, version: CommitVersion)

pub fn get(&self, key: &EncodedKey) -> Result<Option<TransactionValue>>

pub fn contains_key(&self, key: &EncodedKey) -> Result<bool>

pub fn scan( &self, ) -> Result<<TransactionStore as MultiVersionRange>::RangeIter<'_>>

pub fn scan_rev( &self, ) -> Result<<TransactionStore as MultiVersionRangeRev>::RangeIterRev<'_>>

pub fn range_batched( &self, range: EncodedKeyRange, batch_size: u64, ) -> Result<<TransactionStore as MultiVersionRange>::RangeIter<'_>>

pub fn range( &self, range: EncodedKeyRange, ) -> Result<<TransactionStore as MultiVersionRange>::RangeIter<'_>>

pub fn range_rev_batched( &self, range: EncodedKeyRange, batch_size: u64, ) -> Result<<TransactionStore as MultiVersionRangeRev>::RangeIterRev<'_>>

pub fn range_rev( &self, range: EncodedKeyRange, ) -> Result<<TransactionStore as MultiVersionRangeRev>::RangeIterRev<'_>>

pub fn prefix( &self, prefix: &EncodedKey, ) -> Result<<TransactionStore as MultiVersionRange>::RangeIter<'_>>

pub fn prefix_rev( &self, prefix: &EncodedKey, ) -> Result<<TransactionStore as MultiVersionRangeRev>::RangeIterRev<'_>>

Trait Implementations

impl MultiVersionQueryTransaction for QueryTransaction

fn version(&self) -> CommitVersion

fn id(&self) -> TransactionId

fn get(&mut self, key: &EncodedKey) -> Result<Option<MultiVersionValues>, Error>

fn contains_key(&mut self, key: &EncodedKey) -> Result<bool, Error>

fn range_batched( &mut self, range: EncodedKeyRange, batch_size: u64, ) -> Result<BoxedMultiVersionIter<'_>, Error>

fn range_rev_batched( &mut self, range: EncodedKeyRange, batch_size: u64, ) -> Result<BoxedMultiVersionIter<'_>, Error>

fn prefix( &mut self, prefix: &EncodedKey, ) -> Result<BoxedMultiVersionIter<'_>, Error>

fn prefix_rev( &mut self, prefix: &EncodedKey, ) -> Result<BoxedMultiVersionIter<'_>, Error>

fn read_as_of_version_exclusive( &mut self, version: CommitVersion, ) -> Result<(), Error>

fn range( &mut self, range: EncodedKeyRange, ) -> Result<Box<dyn Iterator<Item = MultiVersionValues> + Send + '_>, Error>

fn range_rev( &mut self, range: EncodedKeyRange, ) -> Result<Box<dyn Iterator<Item = MultiVersionValues> + Send + '_>, Error>

fn read_as_of_version_inclusive( &mut self, version: CommitVersion, ) -> Result<(), Error>