Struct arrow::array::DecimalBuilder

pub struct DecimalBuilder { /* fields omitted */ }

Array Builder for DecimalArray

See DecimalArray for example.

Implementations

impl DecimalBuilder

pub fn new(capacity: usize, precision: usize, scale: usize) -> Self

Creates a new BinaryBuilder, capacity is the number of bytes in the values array

pub fn append_value(&mut self, value: i128) -> Result<()>

Appends a byte slice into the builder.

Automatically calls the append method to delimit the slice appended in as a distinct array element.

pub fn append_null(&mut self) -> Result<()>

Append a null value to the array.

pub fn finish(&mut self) -> DecimalArray

Builds the DecimalArray and reset this builder.

Trait Implementations

impl ArrayBuilder for DecimalBuilder

fn as_any(&self) -> &dyn Any

Returns the builder as a non-mutable Any reference.

fn as_any_mut(&mut self) -> &mut dyn Any

Returns the builder as a mutable Any reference.

fn into_box_any(self: Box<Self>) -> Box<dyn Any>

Returns the boxed builder as a box of Any.

fn len(&self) -> usize

Returns the number of array slots in the builder

fn is_empty(&self) -> bool

Returns whether the number of array slots is zero

fn finish(&mut self) -> ArrayRef

Builds the array and reset this builder.

impl Debug for DecimalBuilder

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

Formats the value using the given formatter.