Trait lance_encoding::EncodingsIo

source · 
pub trait EncodingsIo: Send + Sync {
    // Required method
    fn submit_request(
        &self,
        range: Vec<Range<u64>>
    ) -> BoxFuture<'static, Result<Vec<Bytes>>>;
}
Expand description

A trait for an I/O service

This represents the I/O API that the encoders and decoders need in order to operate. We specify this as a trait so that lance-encodings does not need to depend on lance-io

In general, it is assumed that this trait will be implemented by some kind of “file reader” or “file scheduler”. The encodings here are all limited to accessing a single file.

Required Methods§

source

fn submit_request( &self, range: Vec<Range<u64>> ) -> BoxFuture<'static, Result<Vec<Bytes>>>

Submit an I/O request

The response must contain a Bytes object for each range requested even if the underlying I/O was coalesced into fewer actual requests.

§Arguments
  • ranges - the byte ranges to request

Implementors§