Struct polars::export::arrow::array::MutableNullArray

pub struct MutableNullArray { /* private fields */ }

A distinct type to disambiguate clashing methods

Implementations

impl MutableNullArray

pub fn new(data_type: DataType, length: usize) -> MutableNullArray

Returns a new MutableNullArray.

Panics

This function errors iff:

• The data_type’s crate::datatypes::PhysicalType is not equal to crate::datatypes::PhysicalType::Null.

Trait Implementations

impl Debug for MutableNullArray

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

Formats the value using the given formatter.

impl From<MutableNullArray> for NullArray

fn from(value: MutableNullArray) -> NullArray

Converts to this type from the input type.

impl MutableArray for MutableNullArray

fn data_type(&self) -> &DataType

The DataType of the array.

fn len(&self) -> usize

The length of the array.

fn validity(&self) -> Option<&MutableBitmap>

The optional validity of the array.

fn as_box(&mut self) -> Box<dyn Array + 'static, Global>

Convert itself to an (immutable) Array.

fn as_any(&self) -> &(dyn Any + 'static)

Convert to Any, to enable dynamic casting.

fn as_mut_any(&mut self) -> &mut (dyn Any + 'static)

Convert to mutable Any, to enable dynamic casting.

fn push_null(&mut self)

Adds a new null element to the array.

fn reserve(&mut self, _additional: usize)

Reserves additional slots to its capacity.

fn shrink_to_fit(&mut self)

Shrink the array to fit its length.

fn is_empty(&self) -> bool

Whether the array is empty.

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

Convert itself to an (immutable) atomically reference counted Array.

fn is_valid(&self, index: usize) -> bool

Whether index is valid / set.