Struct ValidityBuilder 

pub struct ValidityBuilder { /* private fields */ }

Incrementally builds a validity bitmap while a column block is encoded.

Implementations

impl ValidityBuilder

pub fn with_capacity(capacity: usize) -> Self

Create a builder sized for capacity rows.

pub fn push(&mut self, valid: bool)

Record one row: valid == true means a real value is present.

pub fn len(&self) -> usize

Number of rows recorded so far.

pub fn is_empty(&self) -> bool

Whether no rows have been recorded.

pub fn null_count(&self) -> usize

Number of null rows recorded so far.

pub fn finish(self) -> Option<Vec<u8>>

Finish the bitmap.

Returns None when every row was valid — the overwhelmingly common case for time-series columns — so that dense blocks store no bitmap.

Trait Implementations

impl Debug for ValidityBuilder

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

Formats the value using the given formatter.