Struct LocalSpillStore 

pub struct LocalSpillStore { /* private fields */ }

A SpillStore that writes temporary files to a local temp directory.

By default there is no disk cap. Use LocalSpillStore::with_cap to configure one shared across every handle this store produces.

The scratch directory is created on the first SpillStore::new_spill call, not at construction, so opening a dataset does not require a writable temp directory. It is deleted when the store is dropped, cleaning up any files whose handles have already been dropped.

Implementations

impl LocalSpillStore

pub fn new() -> Result<Self>

Create a store with no disk cap.

Construction does not touch the filesystem; the scratch directory is created on the first SpillStore::new_spill call.

pub fn with_cap(cap_bytes: u64) -> Result<Self>

Create a store that returns lance_core::Error::DiskCapExceeded once total bytes written across all live handles would exceed cap_bytes.

Trait Implementations

impl Default for LocalSpillStore

fn default() -> Self

Returns the “default value” for a type.

impl SpillStore for LocalSpillStore

fn new_spill<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<(Box<dyn Writer>, Box<dyn Spill>)>> + Send + 'async_trait>>

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

Allocate a unit of scratch storage.