Enum StreamTerminal 

pub enum StreamTerminal {
    Open,
    Exhausted,
    Closed,
    Cancelled,
    Failed(StreamFailure),
}

One-way lifecycle state for a DataFrameStream.

Variants

Open

The stream may yield its next batch.

Exhausted

The source ended normally; later reads return end-of-stream.

Closed

The consumer closed the stream before exhaustion.

Cancelled

The consumer cancelled the stream before exhaustion.

Failed(StreamFailure)

The stream failed; later reads reproduce this structured failure.

Implementations

impl StreamTerminal

pub fn as_error(&self) -> Option<DataFrameError>

Return the corresponding repeatable error, if this terminal state cannot yield.

Trait Implementations

impl Clone for StreamTerminal

fn clone(&self) -> StreamTerminal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamTerminal

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for StreamTerminal

impl PartialEq for StreamTerminal

fn eq(&self, other: &StreamTerminal) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for StreamTerminal