Struct SparseIoStack 

pub struct SparseIoStack {
    pub stack: Vec<SparseIoVec>,
    /* private fields */
}

sparse_io_stack is a stack of sparse_io_vector

Fields

stack: Vec<SparseIoVec>

Implementations

impl SparseIoStack

pub fn new() -> Self

pub fn push(&mut self, data: SparseIoVec) -> Result<()>

pub fn num_types(&self) -> usize

number of data types

pub fn num_columns(&self) -> Result<usize>

number of shared columns

pub fn column_names(&self) -> Result<Vec<Box<str>>>

Get the shared column names.

pub fn mask_columns_all(&mut self, keep: &[bool]) -> Result<()>

Exclude columns (cells) across every layer in the stack in lockstep. keep[global_col] is true to keep, false to drop. Mirror of SparseIoVec::mask_columns; the members share one synchronized cell axis, so the same mask applies to all. MUST be called before batch/group registration.

pub fn register_batch_membership<T>(&mut self, batch_membership: &[T])

where T: Sync + Send + Hash + Eq + Clone + ToString,

Register batch membership for all layers in the stack.

pub fn row_names(&self) -> Result<Vec<Box<str>>>

Get the row names combined across all the types. We will append additional data type index: format!("{}/{}", x, d)

Trait Implementations

impl Default for SparseIoStack

fn default() -> Self

an empty sparse io vector for horizontal data integration