Struct ArrowSheet 

pub struct ArrowSheet {
    pub name: Arc<str>,
    pub columns: Vec<ArrowColumn>,
    pub nrows: u32,
    pub chunk_starts: Vec<usize>,
}

Fields

name: Arc<str>

columns: Vec<ArrowColumn>

nrows: u32

chunk_starts: Vec<usize>

Implementations

impl ArrowSheet

pub fn shape(&self) -> Vec<ColumnShape>

Return a summary of each column’s chunk counts, total rows, and lane presence.

pub fn range_view( &self, sr: usize, sc: usize, er: usize, ec: usize, ) -> ArrowRangeView<'_>

pub fn ensure_row_capacity(&mut self, target_rows: usize)

Ensure capacity to address at least target_rows rows by appending empty chunks.

pub fn chunk_of_row(&self, abs_row: usize) -> Option<(usize, usize)>

Return (chunk_idx, in_chunk_offset) for absolute 0-based row.

pub fn maybe_compact_chunk( &mut self, col_idx: usize, ch_idx: usize, abs_threshold: usize, frac_den: usize, ) -> bool

Heuristic compaction: rebuilds a chunk’s base arrays by applying its overlay when overlay density crosses thresholds. Returns true if a rebuild occurred.

pub fn insert_rows(&mut self, before: usize, count: usize)

Insert count rows before absolute 0-based row before.

pub fn delete_rows(&mut self, start: usize, count: usize)

Delete count rows starting from absolute 0-based row start.

pub fn insert_columns(&mut self, before: usize, count: usize)

Insert count columns before absolute 0-based column before with empty chunks.

pub fn delete_columns(&mut self, start: usize, count: usize)

Delete count columns starting at absolute 0-based column start.

Trait Implementations

impl Clone for ArrowSheet

fn clone(&self) -> ArrowSheet

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ArrowSheet

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

Formats the value using the given formatter.