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trait TableProcessor extends AnyRef

A processor for Delta table data.

The implementations of this interface should encapsulate logic for processing Delta table Changes and Add Files.

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BaseTableProcessor, ChangesProcessor, ContinuousTableProcessor, SnapshotAndChangesTableProcessor, SnapshotProcessor, TableProcessorBase
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Abstract Value Members

  1. abstract def getSnapshotVersion(): Long

    returns

    A io.delta.standalone.Snapshot version on which this processor operates.

  2. abstract def process(processCallback: Consumer[List[DeltaSourceSplit]]): Unit

    Process Delta table data.

    Process Delta table data. Can call processCallback during this process.

    processCallback

    A Consumer callback that can be called during Delta table processing. The exact condition when this callback will be called depends on TableProcessor implementation.

  3. abstract def snapshotState(checkpointBuilder: DeltaEnumeratorStateCheckpointBuilder[DeltaSourceSplit]): DeltaEnumeratorStateCheckpointBuilder[DeltaSourceSplit]

    Add TableProcessor state information to DeltaEnumeratorStateCheckpointBuilder to be stored in Flink's checkpoint.

    Add TableProcessor state information to DeltaEnumeratorStateCheckpointBuilder to be stored in Flink's checkpoint.

    The implementation of this method should add the latest state information to DeltaEnumeratorStateCheckpointBuilder needed to recreate TableProcessor instance during Flink recovery.

    checkpointBuilder

    the DeltaEnumeratorStateCheckpointBuilder instance that should be updated with TableProcessor state information.

    returns

    the DeltaEnumeratorStateCheckpointBuilder instance with TableProcessor state information.

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