Enum LevelData 

pub(crate) enum LevelData {
    Absent,
    Materialized(Vec<i16>),
    Uniform {
        value: i16,
        count: usize,
    },
}

The data necessary to write a primitive Arrow array to parquet, taking into account any non-primitive parents it may have in the arrow representation

Variants

Absent

Materialized(Vec<i16>)

Uniform

Fields

value: i16

count: usize

Implementations

impl LevelData

fn new(present: bool) -> Self

pub(crate) fn as_ref(&self) -> LevelDataRef<'_>

pub(crate) fn slice(&self, offset: usize, len: usize) -> Self

fn append_run(&mut self, value: i16, count: usize)

fn extend_from_iter<I>(&mut self, iter: I)

where I: IntoIterator<Item = i16>,

fn materialize_mut(&mut self) -> Option<&mut Vec<i16>>

Convert a uniform run into a materialized buffer if needed, then return the mutable level buffer. Returns None when no physical level stream exists.

Trait Implementations

impl Clone for LevelData

fn clone(&self) -> LevelData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LevelData

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

Formats the value using the given formatter.

impl PartialEq for LevelData

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for LevelData