Trait polars_core::prelude::ArrowGetItem

pub trait ArrowGetItem {
    type Item;

    fn get(&self, item: usize) -> Option<Self::Item>;
    unsafe fn get_unchecked(&self, item: usize) -> Option<Self::Item>;
}

Required Associated Types

type Item

Required Methods

fn get(&self, item: usize) -> Option<Self::Item>

unsafe fn get_unchecked(&self, item: usize) -> Option<Self::Item>

Safety

Get item. It is the callers responsibility that the item < self.len()

Implementations on Foreign Types

impl<T> ArrowGetItem for PrimitiveArray<T>where
    T: NativeType,

type Item = T

fn get(&self, item: usize) -> Option<<PrimitiveArray<T> as ArrowGetItem>::Item>

unsafe fn get_unchecked(
    &self,
    item: usize
) -> Option<<PrimitiveArray<T> as ArrowGetItem>::Item>

impl ArrowGetItem for BooleanArray

type Item = bool

fn get(&self, item: usize) -> Option<<BooleanArray as ArrowGetItem>::Item>

unsafe fn get_unchecked(
    &self,
    item: usize
) -> Option<<BooleanArray as ArrowGetItem>::Item>

impl ArrowGetItem for ListArray<i64>

type Item = Box<dyn Array + 'static, Global>

fn get(&self, item: usize) -> Option<<ListArray<i64> as ArrowGetItem>::Item>

unsafe fn get_unchecked(
    &self,
    item: usize
) -> Option<<ListArray<i64> as ArrowGetItem>::Item>

impl<'a> ArrowGetItem for &'a BinaryArray<i64>

type Item = &'a [u8]

fn get(
    &self,
    item: usize
) -> Option<<&'a BinaryArray<i64> as ArrowGetItem>::Item>

unsafe fn get_unchecked(
    &self,
    item: usize
) -> Option<<&'a BinaryArray<i64> as ArrowGetItem>::Item>

impl<'a> ArrowGetItem for &'a Utf8Array<i64>

type Item = &'a str

fn get(&self, item: usize) -> Option<<&'a Utf8Array<i64> as ArrowGetItem>::Item>

unsafe fn get_unchecked(
    &self,
    item: usize
) -> Option<<&'a Utf8Array<i64> as ArrowGetItem>::Item>

Implementors