Struct StructVTable

pub struct StructVTable;

Trait Implementations

impl ArrayVTable<StructVTable> for StructVTable

fn len(array: &StructArray) -> usize

fn dtype(array: &StructArray) -> &DType

fn stats(array: &StructArray) -> StatsSetRef<'_>

impl CanonicalVTable<StructVTable> for StructVTable

fn canonicalize(array: &StructArray) -> VortexResult<Canonical>

Returns the canonical representation of the array.

fn append_to_builder( array: &V::Array, builder: &mut dyn ArrayBuilder, ) -> VortexResult<()>

Writes the array into a canonical builder.

impl CastKernel for StructVTable

fn cast(&self, array: &StructArray, dtype: &DType) -> VortexResult<ArrayRef>

impl Debug for StructVTable

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

Formats the value using the given formatter.

impl FilterKernel for StructVTable

fn filter(&self, array: &StructArray, mask: &Mask) -> VortexResult<ArrayRef>

Filter an array by the provided predicate.

impl IsConstantKernel for StructVTable

fn is_constant( &self, array: &StructArray, opts: &IsConstantOpts, ) -> VortexResult<Option<bool>>

Preconditions

impl MaskKernel for StructVTable

fn mask( &self, array: &StructArray, filter_mask: &Mask, ) -> VortexResult<ArrayRef>

Replace masked values with null in array.

impl MinMaxKernel for StructVTable

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

impl OperationsVTable<StructVTable> for StructVTable

fn slice( array: &StructArray, start: usize, stop: usize, ) -> VortexResult<ArrayRef>

Perform a constant-time slice of the array.

fn scalar_at(array: &StructArray, index: usize) -> VortexResult<Scalar>

Fetch the scalar at the given index.

impl SerdeVTable<StructVTable> for StructVTable

type Metadata = EmptyMetadata

fn metadata(_array: &StructArray) -> VortexResult<Option<Self::Metadata>>

Exports the metadata for the array.

fn build( _encoding: &StructEncoding, dtype: &DType, len: usize, _metadata: &Self::Metadata, _buffers: &[ByteBuffer], children: &dyn ArrayChildren, ) -> VortexResult<StructArray>

Build an array from its given parts.

impl TakeKernel for StructVTable

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

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

impl VTable for StructVTable

type Array = StructArray

type Encoding = StructEncoding

type ArrayVTable = StructVTable

type CanonicalVTable = StructVTable

type OperationsVTable = StructVTable

type ValidityVTable = ValidityVTableFromValidityHelper

type VisitorVTable = StructVTable

type ComputeVTable = NotSupported

Optionally enable implementing dynamic compute dispatch for this encoding. Can be disabled by assigning to the NotSupported type.

type EncodeVTable = NotSupported

Optionally enable the EncodeVTable for this encoding. This allows it to partake in compression. Can be disabled by assigning to the NotSupported type.

type SerdeVTable = StructVTable

Optionally enable serde for this encoding by implementing the SerdeVTable trait. Can be disabled by assigning to the NotSupported type.

fn id(_encoding: &Self::Encoding) -> EncodingId

Returns the ID of the encoding.

fn encoding(_array: &Self::Array) -> EncodingRef

Returns the encoding for the array.

impl VisitorVTable<StructVTable> for StructVTable

fn visit_buffers(_array: &StructArray, _visitor: &mut dyn ArrayBufferVisitor)

Visit the buffers of the array.

fn visit_children(array: &StructArray, visitor: &mut dyn ArrayChildVisitor)

Visit the children of the array.

fn nbuffers(array: &V::Array) -> usize

Count the number of buffers in the array.

fn nchildren(array: &V::Array) -> usize

Count the number of children in the array.