Struct polars::chunked_array::object::builder::ObjectChunkedBuilder

pub struct ObjectChunkedBuilder<T> { /* private fields */ }

Available on crate feature object only.

Implementations

impl<T> ObjectChunkedBuilder<T>

where T: PolarsObject,

pub fn new(name: &str, capacity: usize) -> ObjectChunkedBuilder<T>

pub fn append_value(&mut self, v: T)

Appends a value of type T into the builder

pub fn append_null(&mut self)

Appends a null slot into the builder

pub fn append_value_from_any( &mut self, v: &(dyn Any + 'static) ) -> Result<(), PolarsError>

pub fn append_option(&mut self, opt: Option<T>)

pub fn finish(self) -> ChunkedArray<ObjectType<T>>

Trait Implementations

impl<T> AnonymousObjectBuilder for ObjectChunkedBuilder<T>

where T: PolarsObject,

fn append_null(&mut self)

Append a null value.

fn append_value(&mut self, value: &(dyn Any + 'static))

Append a T of ObjectChunked<T> made generic via the Any trait.

fn to_series(&mut self) -> Series

Take the current state and materialize as a Series the builder should not be used after that.

fn append_option(&mut self, value: Option<&(dyn Any + 'static)>)

impl<T> Default for ObjectChunkedBuilder<T>

where T: PolarsObject,

fn default() -> ObjectChunkedBuilder<T>

Returns the “default value” for a type.