Struct arrow::array::Decimal128Builder

pub struct Decimal128Builder { /* private fields */ }

Array Builder for Decimal128Array

See Decimal128Array for example.

Implementations

impl Decimal128Builder

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

Creates a new Decimal128Builder, capacity is the number of bytes in the values array

pub unsafe fn disable_value_validation(&mut self)

Disable validation

Safety

After disabling validation, caller must ensure that appended values are compatible for the specified precision and scale.

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

Appends a decimal value into the builder.

pub fn append_null(&mut self)

Append a null value to the array.

pub fn finish(&mut self) -> Decimal128Array

Builds the Decimal128Array and reset this builder.

Trait Implementations

impl ArrayBuilder for Decimal128Builder

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 Decimal128Builder

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

Formats the value using the given formatter.