Struct vortex_array::array::ConstantArray

pub struct ConstantArray(/* private fields */);

Implementations

impl ConstantArray

pub fn maybe_from(data: impl AsRef<ArrayData>) -> Option<Self>

Optionally downcast an ArrayData instance to a specific encoding.

Preferred in cases where a backtrace isn’t needed, like when trying multiple encoding to go down different code paths.

impl ConstantArray

pub fn new<S>(scalar: S, length: usize) -> Self

where S: Into<Scalar>,

pub fn scalar(&self) -> Scalar

Returns the [Scalar] value of this constant array.

Trait Implementations

impl<T> Accessor<T> for ConstantArray

where T: Clone + TryFrom<Scalar, Error = VortexError>,

fn array_len(&self) -> usize

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

fn value_unchecked(&self, _index: usize) -> T

fn array_validity(&self) -> Validity

fn batch_size(&self, start_idx: usize) -> usize

fn decode_batch(&self, start_idx: usize) -> Vec<T>

impl AsRef<ArrayData> for ConstantArray

fn as_ref(&self) -> &ArrayData

Converts this type into a shared reference of the (usually inferred) input type.

impl BinaryBooleanFn<ConstantArray> for ConstantEncoding

fn binary_boolean( &self, lhs: &ConstantArray, rhs: &ArrayData, op: BinaryOperator, ) -> VortexResult<Option<ArrayData>>

impl BinaryNumericFn<ConstantArray> for ConstantEncoding

fn binary_numeric( &self, array: &ConstantArray, rhs: &ArrayData, op: BinaryNumericOperator, ) -> VortexResult<Option<ArrayData>>

impl Clone for ConstantArray

fn clone(&self) -> ConstantArray

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CompareFn<ConstantArray> for ConstantEncoding

fn compare( &self, lhs: &ConstantArray, rhs: &ArrayData, operator: Operator, ) -> VortexResult<Option<ArrayData>>

Compares two arrays and returns a new boolean array with the result of the comparison. Or, returns None if comparison is not supported for these arrays.

impl Debug for ConstantArray

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

Formats the value using the given formatter.

impl ExtensionArrayTrait for ConstantArray

fn storage_data(&self) -> ArrayData

Returns the underlying ArrayData, without the [ExtDType].

fn ext_dtype(&self) -> &Arc<ExtDType>

Returns the extension logical [DType].

impl FilterFn<ConstantArray> for ConstantEncoding

fn filter( &self, array: &ConstantArray, mask: FilterMask, ) -> VortexResult<ArrayData>

Filter an array by the provided predicate.

impl IntoArrayData for ConstantArray

fn into_array(self) -> ArrayData

impl IntoCanonical for ConstantArray

fn into_canonical(self) -> VortexResult<Canonical>

fn into_arrow(self) -> VortexResult<ArrayRef>

where Self: Sized,

impl InvertFn<ConstantArray> for ConstantEncoding

fn invert(&self, array: &ConstantArray) -> VortexResult<ArrayData>

Logically invert a boolean array. Converts true -> false, false -> true, null -> null.

impl PrimitiveArrayTrait for ConstantArray

fn ptype(&self) -> PType

The logical primitive type of the array.

impl ScalarAtFn<ConstantArray> for ConstantEncoding

fn scalar_at( &self, array: &ConstantArray, _index: usize, ) -> VortexResult<Scalar>

impl SearchSortedFn<ConstantArray> for ConstantEncoding

fn search_sorted( &self, array: &ConstantArray, value: &Scalar, side: SearchSortedSide, ) -> VortexResult<SearchResult>

fn search_sorted_many( &self, array: &Array, values: &[Scalar], side: SearchSortedSide, ) -> VortexResult<Vec<SearchResult>>

Bulk search for many values.

impl SliceFn<ConstantArray> for ConstantEncoding

fn slice( &self, array: &ConstantArray, start: usize, stop: usize, ) -> VortexResult<ArrayData>

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 StatisticsVTable<ConstantArray> for ConstantEncoding

fn compute_statistics( &self, array: &ConstantArray, _stat: Stat, ) -> VortexResult<StatsSet>

Compute the requested statistic. Can return additional stats.

impl StructArrayTrait for ConstantArray

fn field(&self, idx: usize) -> Option<ArrayData>

Return a field’s array by index

fn project(&self, projection: &[Field]) -> VortexResult<ArrayData>

fn names(&self) -> &FieldNames

fn dtypes(&self) -> &[DType]

fn nfields(&self) -> usize

fn field_by_name(&self, name: &str) -> Option<ArrayData>

Return a field’s array by name

impl TakeFn<ConstantArray> for ConstantEncoding

fn take( &self, array: &ConstantArray, indices: &ArrayData, ) -> VortexResult<ArrayData>

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

unsafe fn take_unchecked( &self, array: &Array, indices: &ArrayData, ) -> VortexResult<ArrayData>

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

impl<'a> TryFrom<&'a ArrayData> for &'a ConstantArray

type Error = VortexError

The type returned in the event of a conversion error.

fn try_from(data: &'a ArrayData) -> VortexResult<Self>

Performs the conversion.

impl TryFrom<ArrayData> for ConstantArray

type Error = VortexError

The type returned in the event of a conversion error.

fn try_from(data: ArrayData) -> VortexResult<Self>

Performs the conversion.

impl ValidityVTable<ConstantArray> for ConstantEncoding

fn is_valid(&self, array: &ConstantArray, _index: usize) -> bool

fn logical_validity(&self, array: &ConstantArray) -> LogicalValidity

impl VariantsVTable<ConstantArray> for ConstantEncoding

Constant arrays support all DTypes

fn as_null_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn NullArrayTrait>

fn as_bool_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn BoolArrayTrait>

fn as_primitive_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn PrimitiveArrayTrait>

fn as_utf8_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn Utf8ArrayTrait>

fn as_binary_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn BinaryArrayTrait>

fn as_struct_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn StructArrayTrait>

fn as_list_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn ListArrayTrait>

fn as_extension_array<'a>( &self, array: &'a ConstantArray, ) -> Option<&'a dyn ExtensionArrayTrait>

impl VisitorVTable<ConstantArray> for ConstantEncoding

fn accept( &self, _array: &ConstantArray, _visitor: &mut dyn ArrayVisitor, ) -> VortexResult<()>

impl ArrayTrait for ConstantArray

impl BinaryArrayTrait for ConstantArray

impl BoolArrayTrait for ConstantArray

impl ListArrayTrait for ConstantArray

impl NullArrayTrait for ConstantArray

impl Utf8ArrayTrait for ConstantArray