Struct scylla_cql::types::deserialize::result::RawRowLendingIterator

pub struct RawRowLendingIterator { /* private fields */ }

A lending iterator over serialized rows.

This type is similar to RawRowIterator, but keeps ownership of the serialized result. Because it returns ColumnIterators that need to borrow from it, it does not implement the Iterator trait (there is no type in the standard library to represent this concept yet).

Implementations

impl RawRowLendingIterator

pub fn new(raw_rows: DeserializedMetadataAndRawRows) -> Self

Creates a new RawRowLendingIterator, consuming given RawRows.

pub fn next( &mut self, ) -> Option<Result<ColumnIterator<'_, '_>, DeserializationError>>

Returns a ColumnIterator that represents the next row.

Note: the ColumnIterator borrows from the RawRowLendingIterator. The column iterator must be consumed before the rows iterator can continue.

pub fn size_hint(&self) -> (usize, Option<usize>)

pub fn metadata(&self) -> &ResultMetadata<'_>

Returns the metadata associated with the response (paging state and column specifications).

pub fn rows_remaining(&self) -> usize

Returns the remaining number of rows that this iterator is expected to produce.

Trait Implementations

impl Debug for RawRowLendingIterator

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

Formats the value using the given formatter.