Struct FromRustIterator

pub struct FromRustIterator<'a, B: RustIteratorBuilder> {
    inner: &'a B::Iterable,
    iter: Option<(RustIteratorOfBuilder<'a, B>, TableKey<&'a [u8]>, HummockValue<&'a [u8]>)>,
    epoch: EpochWithGap,
    table_id: TableId,
}

Fields

inner: &'a B::Iterable

iter: Option<(RustIteratorOfBuilder<'a, B>, TableKey<&'a [u8]>, HummockValue<&'a [u8]>)>

epoch: EpochWithGap

table_id: TableId

Implementations

impl<'a, B: RustIteratorBuilder> FromRustIterator<'a, B>

pub fn new( inner: &'a B::Iterable, epoch: EpochWithGap, table_id: TableId, ) -> Self

async fn seek_inner<'b>( &'b mut self, key: FullKey<&'b [u8]>, ) -> HummockResult<()>

async fn rev_seek_inner<'b>( &'b mut self, key: FullKey<&'b [u8]>, ) -> HummockResult<()>

Trait Implementations

impl<'a, B: RustIteratorBuilder> HummockIterator for FromRustIterator<'a, B>

type Direction = <B as RustIteratorBuilder>::Direction

async fn next(&mut self) -> HummockResult<()>

Moves a valid iterator to the next key.

fn key(&self) -> FullKey<&[u8]>

Retrieves the current key.

fn value(&self) -> HummockValue<&[u8]>

Retrieves the current value, decoded as HummockValue.

fn is_valid(&self) -> bool

Indicates whether the iterator can be used.

async fn rewind(&mut self) -> HummockResult<()>

Resets the position of the iterator.

async fn seek<'b>(&'b mut self, key: FullKey<&'b [u8]>) -> HummockResult<()>

Resets iterator and seeks to the first position where the key >= provided key, or key <= provided key if this is a backward iterator.

fn collect_local_statistic(&self, _stats: &mut StoreLocalStatistic)

take local statistic info from iterator to report metrics.

fn value_meta(&self) -> ValueMeta

Returns value meta.