Struct arrow::array::BinaryBuilder

pub struct BinaryBuilder { /* fields omitted */ }

Array builder for BinaryArray

Methods

impl BinaryBuilder

pub fn new(capacity: usize) -> Self

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

pub fn append_value(&mut self, value: u8) -> Result<()>

Appends a single byte value into the builder's values array.

Note, when appending individual byte values you must call append to delimit each distinct list value.

pub fn append_string(&mut self, value: &str) -> Result<()>

Appends a &String or &str into the builder.

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

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

Finish the current variable-length list array slot.

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

Append a null value to the array.

pub fn finish(&mut self) -> BinaryArray

Builds the BinaryArray and reset this builder.