Package org.apache.beam.sdk.io.gcp.bigtable.changestreams.dofn

Class DetectNewPartitionsDoFn

java.lang.Object

org.apache.beam.sdk.transforms.DoFn<InitialPipelineState,PartitionRecord>

org.apache.beam.sdk.io.gcp.bigtable.changestreams.dofn.DetectNewPartitionsDoFn

All Implemented Interfaces:

Serializable, HasDisplayData

@Internal
@UnboundedPerElement
public class DetectNewPartitionsDoFn
extends DoFn<InitialPipelineState,PartitionRecord>

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.beam.sdk.transforms.DoFn

DoFn.AlwaysFetched, DoFn.BoundedPerElement, DoFn.BundleFinalizer, DoFn.Element, DoFn.FieldAccess, DoFn.FinishBundle, DoFn.FinishBundleContext, DoFn.GetInitialRestriction, DoFn.GetInitialWatermarkEstimatorState, DoFn.GetRestrictionCoder, DoFn.GetSize, DoFn.GetWatermarkEstimatorStateCoder, DoFn.Key, DoFn.MultiOutputReceiver, DoFn.NewTracker, DoFn.NewWatermarkEstimator, DoFn.OnTimer, DoFn.OnTimerContext, DoFn.OnTimerFamily, DoFn.OnWindowExpiration, DoFn.OnWindowExpirationContext, DoFn.OutputReceiver<T>, DoFn.ProcessContext, DoFn.ProcessContinuation, DoFn.ProcessElement, DoFn.RequiresStableInput, DoFn.RequiresTimeSortedInput, DoFn.Restriction, DoFn.Setup, DoFn.SideInput, DoFn.SplitRestriction, DoFn.StartBundle, DoFn.StartBundleContext, DoFn.StateId, DoFn.Teardown, DoFn.TimerFamily, DoFn.TimerId, DoFn.Timestamp, DoFn.TruncateRestriction, DoFn.UnboundedPerElement, DoFn.WatermarkEstimatorState, DoFn.WindowedContext

Constructor Summary

Constructors

Constructor	Description
DetectNewPartitionsDoFn(Instant endTime, ActionFactory actionFactory, DaoFactory daoFactory, ChangeStreamMetrics metrics)

Method Summary

Modifier and Type	Method	Description
Instant	getInitialWatermarkEstimatorState(InitialPipelineState initialPipelineState)
double	getSize()
OffsetRange	initialRestriction()
ManualWatermarkEstimator<Instant>	newWatermarkEstimator(Instant watermarkEstimatorState)
DoFn.ProcessContinuation	processElement(InitialPipelineState initialPipelineState, RestrictionTracker<OffsetRange,Long> tracker, DoFn.OutputReceiver<PartitionRecord> receiver, ManualWatermarkEstimator<Instant> watermarkEstimator)
OffsetRangeTracker	restrictionTracker(OffsetRange restriction)
void	setup()

Methods inherited from class org.apache.beam.sdk.transforms.DoFn

getAllowedTimestampSkew, getInputTypeDescriptor, getOutputTypeDescriptor, populateDisplayData, prepareForProcessing

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DetectNewPartitionsDoFn

public DetectNewPartitionsDoFn(@Nullable
 Instant endTime,
 ActionFactory actionFactory,
 DaoFactory daoFactory,
 ChangeStreamMetrics metrics)

Method Details

getInitialWatermarkEstimatorState

@GetInitialWatermarkEstimatorState
public Instant getInitialWatermarkEstimatorState(@Element
 InitialPipelineState initialPipelineState)

newWatermarkEstimator

@NewWatermarkEstimator
public ManualWatermarkEstimator<Instant> newWatermarkEstimator(@WatermarkEstimatorState
 Instant watermarkEstimatorState)

initialRestriction

@GetInitialRestriction
public OffsetRange initialRestriction()

restrictionTracker

@NewTracker
public OffsetRangeTracker restrictionTracker(@Restriction
 OffsetRange restriction)

getSize

@GetSize
public double getSize()

setup

@Setup
public void setup()
           throws IOException

Throws:

IOException

processElement

@ProcessElement
public DoFn.ProcessContinuation processElement(@Element
 InitialPipelineState initialPipelineState,
 RestrictionTracker<OffsetRange,Long> tracker,
 DoFn.OutputReceiver<PartitionRecord> receiver,
 ManualWatermarkEstimator<Instant> watermarkEstimator)
                                        throws Exception

Throws:

Exception