Struct ObjectWriter

pub struct ObjectWriter { /* private fields */ }

Writer to an object in an object store.

If the object is small enough, the writer will upload the object in a single PUT request. If the object is larger, the writer will create a multipart upload and upload parts in parallel.

This implements the AsyncWrite trait.

Implementations

impl ObjectWriter

pub async fn new(object_store: &LanceObjectStore, path: &Path) -> Result<Self>

pub async fn shutdown(&mut self) -> Result<()>

Trait Implementations

impl AsyncWrite for ObjectWriter

fn poll_write( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8], ) -> Poll<Result<usize, Error>>

Attempt to write bytes from buf into the object.

fn poll_flush( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Error>>

Attempts to flush the object, ensuring that any buffered data reach their destination.

fn poll_shutdown( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Error>>

Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down.

fn poll_write_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>], ) -> Poll<Result<usize, Error>>

Like poll_write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

Determines if this writer has an efficient poll_write_vectored implementation.

impl Drop for ObjectWriter

fn drop(&mut self)

Executes the destructor for this type.

impl Writer for ObjectWriter

fn tell<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<usize>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Tell the current offset.