Struct BuilderFactory 

pub struct BuilderFactory { /* private fields */ }

Factory for creating type-safe Arrow builders.

The factory ensures builders are created with appropriate capacity and configuration for each Arrow data type.

Implementations

impl BuilderFactory

pub const fn new(capacity: usize) -> Self

Create a new factory with the specified row capacity.

pub fn from_config(config: &BatchConfig) -> Self

Create from BatchConfig.

pub const fn with_string_capacity(self, capacity: usize) -> Self

Set the string data capacity.

pub const fn with_binary_capacity(self, capacity: usize) -> Self

Set the binary data capacity.

pub const fn with_max_lob_bytes(self, max: Option<usize>) -> Self

Set the maximum LOB size in bytes.

pub fn create_builder( &self, data_type: &DataType, ) -> Box<dyn HanaCompatibleBuilder>

Create a builder for the specified Arrow data type.

Returns a boxed trait object that implements HanaCompatibleBuilder.

Panics

Panics if the data type is not supported (should not happen if using hana_type_to_arrow for type mapping).

pub fn create_builders_for_schema( &self, schema: &Schema, ) -> Vec<Box<dyn HanaCompatibleBuilder>>

Create builders for all fields in a schema.

Returns a vector of boxed builders in the same order as schema fields.

Trait Implementations

impl Clone for BuilderFactory

fn clone(&self) -> BuilderFactory

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BuilderFactory

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

Formats the value using the given formatter.

impl Default for BuilderFactory

fn default() -> Self

Returns the “default value” for a type.