Struct arrow2::array::growable::GrowableList

pub struct GrowableList<'a, O: Offset> { /* private fields */ }

Concrete Growable for the ListArray.

Implementations

impl<'a, O: Offset> GrowableList<'a, O>

pub fn new(
    arrays: Vec<&'a ListArray<O>>,
    use_validity: bool,
    capacity: usize
) -> Self

Creates a new GrowableList bound to arrays with a pre-allocated capacity.

Panics

If arrays is empty.

Trait Implementations

impl<'a, O: Offset> From<GrowableList<'a, O>> for ListArray<O>

fn from(val: GrowableList<'a, O>) -> Self

Performs the conversion.

impl<'a, O: Offset> Growable<'a> for GrowableList<'a, O>

fn extend(&mut self, index: usize, start: usize, len: usize)

Extends this Growable with elements from the bounded Array at index index from a slice starting at start and length len.

fn extend_validity(&mut self, additional: usize)

Extends this Growable with null elements, disregarding the bound arrays

fn as_arc(&mut self) -> Arc<dyn Array>

Converts this Growable to an Arc<dyn Array>, thereby finishing the mutation. Self will be empty after such operation.

fn as_box(&mut self) -> Box<dyn Array>

Converts this Growable to an Box<dyn Array>, thereby finishing the mutation. Self will be empty after such operation