Struct StringArrayBuilder 

pub struct StringArrayBuilder {
    offsets_buffer: MutableBuffer,
    value_buffer: MutableBuffer,
}

Optimized version of the StringBuilder in Arrow that:

1. Precalculating the expected length of the result, avoiding reallocations.
2. Avoids creating / incrementally creating a NullBufferBuilder

Fields

offsets_buffer: MutableBuffer

value_buffer: MutableBuffer

Implementations

impl StringArrayBuilder

pub fn with_capacity(item_capacity: usize, data_capacity: usize) -> Self

pub fn write<const CHECK_VALID: bool>( &mut self, column: &ColumnarValueRef<'_>, i: usize, )

pub fn append_offset(&mut self)

pub fn finish(self, null_buffer: Option<NullBuffer>) -> StringArray

Finalize the builder into a concrete [StringArray].

Panics

This method can panic when:

• the provided null_buffer is not the same length as the offsets_buffer.