Struct IngestBuilder 

pub struct IngestBuilder { /* private fields */ }

Ingestion builder that writes per-column Arrow arrays with a lane/tag design.

Implementations

impl IngestBuilder

pub fn new( sheet_name: &str, ncols: usize, chunk_rows: usize, date_system: DateSystem, ) -> Self

pub fn append_row_cells<'a>( &mut self, row: &[CellIngest<'a>], ) -> Result<(), ExcelError>

Zero-allocation row append from typed cell tokens (no LiteralValue). Text borrows are copied into the internal StringBuilder.

pub fn append_row_cells_iter<'a, I>( &mut self, iter: I, ) -> Result<(), ExcelError>

where I: ExactSizeIterator<Item = CellIngest<'a>>,

Streaming row append from an iterator of typed cell tokens. Requires an ExactSizeIterator to validate row width without materializing a Vec.

pub fn append_row(&mut self, row: &[LiteralValue]) -> Result<(), ExcelError>

Append a single row of values. Length must match ncols.

pub fn finish(self) -> ArrowSheet