Struct CompressingStrategy

pub struct CompressingStrategy<S> { /* private fields */ }

A layout writer that compresses chunks.

Implementations

impl<S: LayoutStrategy> CompressingStrategy<S>

pub fn new_btrblocks( child: S, executor: Arc<dyn TaskExecutor>, parallelism: usize, ) -> Self

Create a new writer that uses the BtrBlocks-style cascading compressor to compress chunks.

This provides a good balance between decoding speed and small file size.

pub fn new_opaque<C: CompressorPlugin>( child: S, compressor: C, executor: Arc<dyn TaskExecutor>, parallelism: usize, ) -> Self

Create a new compressor from a plugin interface.

Trait Implementations

impl<S: Clone> Clone for CompressingStrategy<S>

fn clone(&self) -> CompressingStrategy<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S> LayoutStrategy for CompressingStrategy<S>

where S: LayoutStrategy,

fn write_stream<'life0, 'life1, 'async_trait>( &'life0 self, ctx: &'life1 ArrayContext, sequence_writer: SequenceWriter, stream: SendableSequentialStream, ) -> Pin<Box<dyn Future<Output = VortexResult<LayoutRef>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Asynchronously process an ordered stream of array chunks, emitting them into a sink and returning the Layout instance that can be parsed to retrieve the data from rest.