Struct SheetStreamReader 

pub struct SheetStreamReader<'a, R: BufRead> { /* private fields */ }

Forward-only streaming reader for worksheet XML.

Reads rows in batches without deserializing the entire worksheet into memory. The reader borrows the shared string table for resolving string cell references.

Implementations

impl<'a, R: BufRead> SheetStreamReader<'a, R>

pub fn new(source: R, sst: &'a SharedStringTable) -> Self

Create a new streaming reader over the given BufRead source.

sst is a reference to the shared string table for resolving shared string cell values. Optional configuration (row limit, date interpretation) is applied via the builder methods.

pub fn row_limit(self, limit: Option<u32>) -> Self

Cap the number of rows produced by this reader. None means no limit (the default).

pub fn date_promotion( self, interpretation: DateInterpretation, style_is_date: Vec<bool>, ) -> Self

Configure how date-formatted number cells are interpreted.

style_is_date is a per-style boolean produced by crate::style::compute_style_is_date; it is indexed by each cell’s s attribute. Empty vectors are equivalent to “no style was a date format”, which is the safe default.

pub fn next_batch(&mut self, batch_size: usize) -> Result<Vec<StreamRow>>

Read the next batch of rows. Returns an empty Vec when there are no more rows to read.

pub fn has_more(&self) -> bool

Returns true if there are potentially more rows to read.

pub fn close(self)

Close the reader and release resources.