Package org.apache.beam.runners.dataflow

Class DataflowRunner.StreamingPCollectionViewWriterFn<T>

  • All Implemented Interfaces:
    java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData
    Enclosing class:
    DataflowRunner
    public static class DataflowRunner.StreamingPCollectionViewWriterFn<T>
extends org.apache.beam.sdk.transforms.DoFn<java.lang.Iterable<T>,​T>
    A marker DoFn for writing the contents of a PCollection to a streaming PCollectionView backend implementation.
    See Also:
    Serialized Form

    • Nested Class Summary

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

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

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static <T> DataflowRunner.StreamingPCollectionViewWriterFn<T> create​(org.apache.beam.sdk.values.PCollectionView<?> view, org.apache.beam.sdk.coders.Coder<T> dataCoder)  
      org.apache.beam.sdk.coders.Coder<T> getDataCoder()  
      org.apache.beam.sdk.values.PCollectionView<?> getView()  
      void processElement​(org.apache.beam.sdk.transforms.DoFn.ProcessContext c, org.apache.beam.sdk.transforms.windowing.BoundedWindow w)  

      • 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

    • Method Detail

      • getView

        public org.apache.beam.sdk.values.PCollectionView<?> getView()

      • getDataCoder

        public org.apache.beam.sdk.coders.Coder<T> getDataCoder()

      • processElement

        @ProcessElement
public void processElement​(org.apache.beam.sdk.transforms.DoFn.ProcessContext c,
                           org.apache.beam.sdk.transforms.windowing.BoundedWindow w)
                    throws java.lang.Exception
        Throws:
        java.lang.Exception