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CdcTableSource

laminar_connectors::lookup::cdc_adapter

Struct CdcTableSource 

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

Adapts a SourceConnector into a ReferenceTableSource.

The underlying connector is opened lazily on the first poll_snapshot() call. Snapshot completion is detected when poll_batch() returns None for the first time after delivering at least one batch (or immediately if the source has no data).

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impl CdcTableSource

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pub fn new( connector: Box<dyn SourceConnector>, config: ConnectorConfig, max_batch_size: usize, ) -> Self

Creates a new adapter wrapping the given source connector.

max_batch_size is the hint passed to poll_batch().

Trait Implementations§

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impl ReferenceTableSource for CdcTableSource

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fn poll_snapshot<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<Option<RecordBatch>, ConnectorError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Polls for the next batch of snapshot data. Read more
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fn is_snapshot_complete(&self) -> bool

Returns true once all snapshot batches have been delivered.
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fn poll_changes<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<Option<RecordBatch>, ConnectorError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Polls for the next batch of incremental changes (CDC). Read more
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fn checkpoint(&self) -> SourceCheckpoint

Creates a checkpoint of the current source position.
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fn restore<'life0, 'life1, 'async_trait>( &'life0 mut self, checkpoint: &'life1 SourceCheckpoint, ) -> Pin<Box<dyn Future<Output = Result<(), ConnectorError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Restores the source position from a checkpoint. Read more
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fn close<'life0, 'async_trait>( &'life0 mut self, ) -> Pin<Box<dyn Future<Output = Result<(), ConnectorError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Closes the source and releases resources. Read more

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