Trait ArrowReader 

pub trait ArrowReader {
    // Required method
    fn next_record_batch(&mut self) -> PolarsResult<Option<RecordBatch>>;
}

Required Methods

fn next_record_batch(&mut self) -> PolarsResult<Option<RecordBatch>>

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<R> ArrowReader for FileReader<R>

where R: Read + Seek + MmapBytesReader,

Available on crate feature ipc and (crate features ipc_streaming or ipc) only.

fn next_record_batch(&mut self) -> PolarsResult<Option<RecordBatch>>

impl<R> ArrowReader for Reader<R>

where R: Read + Seek,

Available on crate feature avro only.

fn next_record_batch(&mut self) -> PolarsResult<Option<RecordBatch>>

impl<R> ArrowReader for StreamReader<R>

where R: Read + Seek,

Available on crate feature ipc_streaming and (crate features ipc_streaming or ipc) only.

fn next_record_batch(&mut self) -> PolarsResult<Option<RecordBatch>>

Implementors