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UntypedSourceHandle

Struct UntypedSourceHandle 

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pub struct UntypedSourceHandle { /* private fields */ }
Expand description

Untyped handle for pushing raw RecordBatch data.

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impl UntypedSourceHandle

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pub fn push_arrow(&self, batch: RecordBatch) -> Result<(), StreamingError>

Push a RecordBatch.

The batch is sent to the SPSC channel for pipeline processing and also buffered for ad-hoc SELECT snapshot queries.

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Returns StreamingError if the channel is full or closed.

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pub fn watermark(&self, timestamp: i64)

Emit a watermark.

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pub fn current_watermark(&self) -> i64

Get current watermark.

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pub fn pending(&self) -> usize

Number of buffered records.

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pub fn capacity(&self) -> usize

Buffer capacity.

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pub fn is_backpressured(&self) -> bool

Whether the source buffer is experiencing backpressure (>80% full).

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pub fn name(&self) -> &str

Get the source name.

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pub fn schema(&self) -> &SchemaRef

Get the schema.

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pub fn max_out_of_orderness(&self) -> Option<Duration>

Get the maximum out-of-orderness duration, if configured.

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pub fn set_event_time_column(&self, column: &str)

Declare which column in the source data represents event time.

When set, source.watermark() enables late-row filtering without a SQL WATERMARK FOR clause.

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impl Debug for UntypedSourceHandle

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

Formats the value using the given formatter. Read more

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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The metadata type for pointers and references to this type.
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