Trait SelfDescribingFileReader 

pub trait SelfDescribingFileReader {
    // Required method
    fn try_new_self_described_from_reader<'life0, 'async_trait>(
        reader: Arc<dyn Reader>,
        cache: Option<&'life0 LanceCache>,
    ) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>>
       where Self: Sized + 'async_trait,
             'life0: 'async_trait;

    // Provided method
    fn try_new_self_described<'life0, 'life1, 'life2, 'async_trait>(
        object_store: &'life0 ObjectStore,
        path: &'life1 Path,
        cache: Option<&'life2 LanceCache>,
    ) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>>
       where Self: Sized + Send + 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait { ... }
}

Required Methods

fn try_new_self_described_from_reader<'life0, 'async_trait>( reader: Arc<dyn Reader>, cache: Option<&'life0 LanceCache>, ) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>>

where Self: Sized + 'async_trait, 'life0: 'async_trait,

Provided Methods

fn try_new_self_described<'life0, 'life1, 'life2, 'async_trait>( object_store: &'life0 ObjectStore, path: &'life1 Path, cache: Option<&'life2 LanceCache>, ) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>>

where Self: Sized + Send + 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Open a file reader without any cached schema

In this case the schema will first need to be loaded from the file itself.

When loading files from a dataset it is preferable to use the fragment reader to avoid this overhead.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl SelfDescribingFileReader for FileReader

fn try_new_self_described_from_reader<'life0, 'async_trait>( reader: Arc<dyn Reader>, cache: Option<&'life0 LanceCache>, ) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>>

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

Implementors