Struct arrow::datatypes::BooleanType

pub struct BooleanType {}

Trait Implementations

impl ArrowPrimitiveType for BooleanType

type Native = bool

Corresponding Rust native type for the primitive type.

fn get_data_type() -> DataType

Returns the corresponding Arrow data type of this primitive type.

fn get_bit_width() -> usize

Returns the bit width of this primitive type.

unsafe fn index(raw_ptr: *const Self::Native, i: usize) -> Self::Native

Safety

The pointer must be part of a bit-packed boolean array, and the index must be less than the size of the array.

fn default_value() -> Self::Native

Returns a default value of this primitive type.

impl BufferBuilderTrait<BooleanType> for BufferBuilder<BooleanType>

fn new(capacity: usize) -> Self

Creates a new builder with initial capacity for at least capacity elements of type T.

fn advance(&mut self, i: usize) -> Result<()>

Increases the number of elements in the internal buffer by n and resizes the buffer as needed.

fn append(&mut self, v: bool) -> Result<()>

Appends a value of type T into the builder, growing the internal buffer as needed.

fn append_n(&mut self, n: usize, v: bool) -> Result<()>

Appends a value of type T into the builder N times, growing the internal buffer as needed.

fn append_slice(&mut self, slice: &[bool]) -> Result<()>

Appends a slice of type T, growing the internal buffer as needed.

fn reserve(&mut self, n: usize) -> Result<()>

Reserves memory for at least n more elements of type T.

fn finish(&mut self) -> Buffer

Resets this builder and returns an immutable Buffer.

fn len(&self) -> usize

Returns the current number of array elements in the internal buffer.

fn is_empty(&self) -> bool

Returns whether the internal buffer is empty.

fn capacity(&self) -> usize

Returns the actual capacity (number of elements) of the internal buffer.

impl Debug for BooleanType

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

Formats the value using the given formatter.