Struct ObjectStoreByteSource 

pub struct ObjectStoreByteSource { /* private fields */ }

Available on crate features async and cloud only.

Trait Implementations

impl ByteSource for ObjectStoreByteSource

async fn get_size(&self) -> PolarsResult<usize>

async fn get_suffix(&self, n: usize) -> PolarsResult<(Buffer<u8>, usize)>

Fetch the last n bytes and the total size of the source, in a single request. Returns fewer than n bytes if the source is smaller than n.

async fn get_prefix(&self, n: usize) -> PolarsResult<(Buffer<u8>, usize)>

Fetch the first n bytes and the total size of the source, in a single request where supported. Returns fewer than n bytes if the source is smaller than n.

async fn get_range(&self, range: Range<usize>) -> PolarsResult<Buffer<u8>>

Panics

async fn get_ranges( &self, ranges: &mut [Range<usize>], ) -> PolarsResult<PlHashMap<usize, Buffer<u8>>>

Note: This will mutably sort ranges for coalescing.

impl Clone for ObjectStoreByteSource

fn clone(&self) -> ObjectStoreByteSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<ObjectStoreByteSource> for DynByteSource

fn from(value: ObjectStoreByteSource) -> Self

Converts to this type from the input type.