Struct NullArray

pub struct NullArray { /* private fields */ }

Implementations

impl NullArray

pub fn new(len: usize) -> Self

Trait Implementations

impl ArrayCanonicalImpl for NullArray

fn _to_canonical(&self) -> VortexResult<Canonical>

Returns the canonical representation of the array.

fn _append_to_builder(&self, builder: &mut dyn ArrayBuilder) -> VortexResult<()>

Writes the array into the canonical builder.

impl ArrayComputeImpl for NullArray

const FILTER: Option<KernelRef>

fn _find_kernel(&self, _compute_fn: &dyn ComputeFn) -> Option<KernelRef>

Fallback implementation to lookup compute kernels at runtime.

impl ArrayImpl for NullArray

type Encoding = NullEncoding

fn _len(&self) -> usize

fn _dtype(&self) -> &DType

fn _vtable(&self) -> VTableRef

fn _with_children(&self, _children: &[ArrayRef]) -> VortexResult<Self>

Replace the children of this array with the given arrays.

impl ArrayStatisticsImpl for NullArray

fn _stats_ref(&self) -> StatsSetRef<'_>

impl ArrayValidityImpl for NullArray

fn _is_valid(&self, _index: usize) -> VortexResult<bool>

Returns whether the index item is valid.

fn _all_valid(&self) -> VortexResult<bool>

Returns whether the array is all valid.

fn _all_invalid(&self) -> VortexResult<bool>

Returns whether the array is all invalid.

fn _validity_mask(&self) -> VortexResult<Mask>

Returns the canonical validity mask for the array.

fn _valid_count(&self) -> VortexResult<usize>

Returns the number of valid elements in the array.

fn _invalid_count(&self) -> VortexResult<usize>

Returns the number of invalid elements in the array.

impl ArrayVariantsImpl for NullArray

fn _as_null_typed(&self) -> Option<&dyn NullArrayTrait>

Downcasts the array for null-specific behavior.

fn _as_bool_typed(&self) -> Option<&dyn BoolArrayTrait>

Downcasts the array for bool-specific behavior.

fn _as_primitive_typed(&self) -> Option<&dyn PrimitiveArrayTrait>

Downcasts the array for primitive-specific behavior.

fn _as_utf8_typed(&self) -> Option<&dyn Utf8ArrayTrait>

Downcasts the array for utf8-specific behavior.

fn _as_binary_typed(&self) -> Option<&dyn BinaryArrayTrait>

Downcasts the array for binary-specific behavior.

fn _as_struct_typed(&self) -> Option<&dyn StructArrayTrait>

Downcasts the array for struct-specific behavior.

fn _as_list_typed(&self) -> Option<&dyn ListArrayTrait>

Downcasts the array for list-specific behavior.

fn _as_extension_typed(&self) -> Option<&dyn ExtensionArrayTrait>

Downcasts the array for extension-specific behavior.

impl ArrayVisitorImpl for NullArray

fn _metadata(&self) -> EmptyMetadata

fn _visit_buffers(&self, _visitor: &mut dyn ArrayBufferVisitor)

fn _nbuffers(&self) -> usize

fn _visit_children(&self, _visitor: &mut dyn ArrayChildVisitor)

fn _nchildren(&self) -> usize

impl Clone for NullArray

fn clone(&self) -> NullArray

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NullArray

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

Formats the value using the given formatter.

impl MaskFn<&NullArray> for NullEncoding

fn mask(&self, array: &NullArray, _mask: Mask) -> VortexResult<ArrayRef>

Replace masked values with null in array.

impl MinMaxFn<&NullArray> for NullEncoding

fn min_max(&self, _array: &NullArray) -> VortexResult<Option<MinMaxResult>>

impl ScalarAtFn<&NullArray> for NullEncoding

fn scalar_at(&self, _array: &NullArray, _index: usize) -> VortexResult<Scalar>

impl SliceFn<&NullArray> for NullEncoding

fn slice( &self, _array: &NullArray, start: usize, stop: usize, ) -> VortexResult<ArrayRef>

Return a zero-copy slice of an array, between start (inclusive) and end (exclusive). If start >= stop, returns an empty array of the same type as self. Assumes that start or stop are out of bounds, may panic otherwise.

impl TakeFn<&NullArray> for NullEncoding

fn take(&self, array: &NullArray, indices: &dyn Array) -> VortexResult<ArrayRef>

Create a new array by taking the values from the array at the given indices.

fn take_into( &self, array: A, indices: &dyn Array, builder: &mut dyn ArrayBuilder, ) -> VortexResult<()>

Has the same semantics as Self::take but materializes the result into the provided builder.

impl ToArrowFn<&NullArray> for NullEncoding

fn to_arrow( &self, array: &NullArray, data_type: &DataType, ) -> VortexResult<Option<ArrowArrayRef>>

Convert the array to an Arrow array of the given type.

fn preferred_arrow_data_type(&self, _array: A) -> VortexResult<Option<DataType>>

Return the preferred Arrow DataType of the encoding, or None of the canonical DataType for the array’s Vortex vortex_dtype::DType should be used.

impl UncompressedSizeFn<&NullArray> for NullEncoding

fn uncompressed_size(&self, array: &NullArray) -> VortexResult<usize>

Compute the approximated uncompressed size of the array, in bytes.

impl NullArrayTrait for NullArray