Struct persist::indexed::columnar::ColumnarRecordsVecBuilder

pub struct ColumnarRecordsVecBuilder {
    current: ColumnarRecordsBuilder,
    filled: Vec<ColumnarRecords>,
    key_val_data_max_len: usize,
}

A wrapper around ColumnarRecordsBuilder that chunks as necessary to keep each ColumnarRecords within the required size bounds.

Fields

current: ColumnarRecordsBuilder

filled: Vec<ColumnarRecords>

key_val_data_max_len: usize

Implementations

impl ColumnarRecordsVecBuilder

pub fn len(&self) -> usize

The number of (potentially duplicated) ((Key, Val), Time, Diff) records stored in Self.

pub fn reserve(
    &mut self,
    additional: usize,
    key_size_guess: usize,
    val_size_guess: usize
)

Reserve space for additional more records, based on key_size_guess and val_size_guess.

The guesses for key and val sizes are best effort, and if they end up being too small, the underlying buffers will be resized.

pub fn push(&mut self, record: ((&[u8], &[u8]), u64, isize))

Add a record to Self.

pub fn finish(self) -> Vec<ColumnarRecords>

Finalize constructing a Vec.

Trait Implementations

impl Debug for ColumnarRecordsVecBuilder

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

Formats the value using the given formatter.

impl Default for ColumnarRecordsVecBuilder

fn default() -> Self

Returns the “default value” for a type.