Struct SpectrumBatchBuilder 

pub struct SpectrumBatchBuilder { /* private fields */ }

Streaming builder that accumulates SpectrumRecords and produces a single Arrow RecordBatch when finalized.

All rows in a batch share one mobility_array_kind value, recorded once at construction. Push rows with push; call finish to materialize the batch.

Implementations

impl SpectrumBatchBuilder

pub fn new(mobility_kind: Option<MobilityArrayKind>) -> Self

Create a new builder. Pass the mobility_array_kind from the source’s crate::RunMetadata so the resulting Arrow batch carries the unit/CV interpretation alongside the data.

pub fn schema(&self) -> SchemaRef

Schema for the batch produced by this builder.

pub fn push(&mut self, rec: &SpectrumRecord)

Append one spectrum row.

pub fn len(&self) -> usize

Number of rows accumulated so far.

pub fn is_empty(&self) -> bool

true if no rows have been pushed.

pub fn finish(self) -> Result<RecordBatch, ArrowError>

Materialize the accumulated rows into a RecordBatch.