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SourceBatch

laminar_connectors::connector

Struct SourceBatch 

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pub struct SourceBatch {
    pub records: RecordBatch,
    /* private fields */
}
Expand description

A batch of records read from a source connector.

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§records: RecordBatch

Arrow batch carrying the records.

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impl SourceBatch

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pub fn new(records: RecordBatch) -> Self

Construct a source batch.

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pub fn positioned( records: RecordBatch, row_positions: SourceRowPositions, ) -> Result<Self, ConnectorError>

Construct a batch with deterministic positions for every decoded row.

§Errors

Returns an error when the sidecar is not row-aligned with records.

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pub fn with_mutations( self, mutations: impl Into<Box<[SourceMutation]>>, ) -> Result<Self, ConnectorError>

Attach row-aligned mutations to a batch.

All-Put input is canonicalized to the default. Connectors should call this only for batches that may contain tombstones.

§Errors

Returns an error when the mutation count differs from the decoded row count.

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pub fn with_checkpoint(self, checkpoint: SourceCheckpoint) -> Self

Bind the exact source cursor captured with this batch.

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pub fn with_checkpoint_delta(self, delta: SourceCheckpointDelta) -> Self

Bind changed offsets from the assignment checkpoint already published by an earlier batch.

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pub fn take_cursor(&mut self) -> Option<SourceBatchCursor>

Remove the source cursor bound to this batch, when present.

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pub const fn row_positions(&self) -> Option<&SourceRowPositions>

Deterministic row positions, when supplied by the connector.

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pub fn mutations(&self) -> Option<&[SourceMutation]>

Mixed row mutations, or None when every row is a SourceMutation::Put.

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pub fn into_records_with_metadata( self, capability: SourceRowPositionCapability, positioned_schema: &SchemaRef, mutation_schema: &SchemaRef, ) -> Result<RecordBatch, ConnectorError>

Validate and append optional mixed mutations plus deterministic row positions.

The mutation field is omitted for the canonical all-Put case.

§Errors

Returns an error when capability, schema, or row-aligned metadata is malformed.

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pub fn num_rows(&self) -> usize

Record count in the batch.

Trait Implementations§

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impl Clone for SourceBatch

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fn clone(&self) -> SourceBatch

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for SourceBatch

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

Formats the value using the given formatter. Read more

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