Trait DataBatchQuery 

pub trait DataBatchQuery: Send {
    // Required method
    fn next_batch(&mut self) -> Result<Option<DataBatch>>;

    // Provided method
    fn reset(&mut self) -> Result<bool> { ... }
}

Streaming query session that yields ordered [DataBatch] chunks.

Required Methods

fn next_batch(&mut self) -> Result<Option<DataBatch>>

Returns the next typed batch, or None after the session is exhausted.

Errors

Returns an error if the underlying page source or typed conversion fails.

Provided Methods

fn reset(&mut self) -> Result<bool>

Resets the session when the backend supports replaying its source.

Errors

Returns an error if the backend cannot reset its source state.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl<T> DataBatchQuery for TypedDataBatchSession<T>

where T: IntoDataBatch + HasTsInit + Send,