org.apache.beam.runners.dataflow

Class BatchStatefulParDoOverrides.BatchStatefulDoFn<K,V,OutputT>

java.lang.Object

org.apache.beam.sdk.transforms.DoFn<org.apache.beam.sdk.values.KV<K,java.lang.Iterable<org.apache.beam.sdk.values.KV<org.joda.time.Instant,org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.values.KV<K,V>>>>>,OutputT>

org.apache.beam.runners.dataflow.BatchStatefulParDoOverrides.BatchStatefulDoFn<K,V,OutputT>

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

BatchStatefulParDoOverrides

public static class BatchStatefulParDoOverrides.BatchStatefulDoFn<K,V,OutputT>
extends org.apache.beam.sdk.transforms.DoFn<org.apache.beam.sdk.values.KV<K,java.lang.Iterable<org.apache.beam.sdk.values.KV<org.joda.time.Instant,org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.values.KV<K,V>>>>>,OutputT>

A key-preserving DoFn that explodes an iterable that has been grouped by key and window.

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.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.GetRestrictionCoder, org.apache.beam.sdk.transforms.DoFn.GetSize, org.apache.beam.sdk.transforms.DoFn.MultiOutputReceiver, org.apache.beam.sdk.transforms.DoFn.NewTracker, org.apache.beam.sdk.transforms.DoFn.OnTimer, org.apache.beam.sdk.transforms.DoFn.OnTimerContext, org.apache.beam.sdk.transforms.DoFn.OnWindowExpiration, org.apache.beam.sdk.transforms.DoFn.OutputReceiver<T>, 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.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.TimerId, org.apache.beam.sdk.transforms.DoFn.Timestamp, org.apache.beam.sdk.transforms.DoFn.UnboundedPerElement, org.apache.beam.sdk.transforms.DoFn.WindowedContext

Method Summary

Modifier and Type	Method and Description
org.apache.beam.sdk.values.TypeDescriptor<OutputT>	getOutputTypeDescriptor()
org.apache.beam.sdk.transforms.DoFn<org.apache.beam.sdk.values.KV<K,V>,OutputT>	getUnderlyingDoFn()
void	processElement(org.apache.beam.sdk.transforms.DoFn.ProcessContext c, org.apache.beam.sdk.transforms.windowing.BoundedWindow window)
void	setup()
void	teardown()

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

getAllowedTimestampSkew, getInputTypeDescriptor, populateDisplayData, prepareForProcessing

Methods inherited from class java.lang.Object

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

Method Detail

getUnderlyingDoFn

public org.apache.beam.sdk.transforms.DoFn<org.apache.beam.sdk.values.KV<K,V>,OutputT> getUnderlyingDoFn()

setup

@DoFn.Setup
public void setup()

processElement

@DoFn.ProcessElement
public void processElement(org.apache.beam.sdk.transforms.DoFn.ProcessContext c,
                                                org.apache.beam.sdk.transforms.windowing.BoundedWindow window)

teardown

@DoFn.Teardown
public void teardown()

getOutputTypeDescriptor

public org.apache.beam.sdk.values.TypeDescriptor<OutputT> getOutputTypeDescriptor()

Overrides:

getOutputTypeDescriptor in class org.apache.beam.sdk.transforms.DoFn<org.apache.beam.sdk.values.KV<K,java.lang.Iterable<org.apache.beam.sdk.values.KV<org.joda.time.Instant,org.apache.beam.sdk.util.WindowedValue<org.apache.beam.sdk.values.KV<K,V>>>>>,OutputT>