com.google.cloud.dataflow.sdk.util

Interface ExecutionContext.StepContext

All Known Implementing Classes:

BaseExecutionContext.StepContext

Enclosing interface:

ExecutionContext

public static interface ExecutionContext.StepContext

Per-step, per-key context used for retrieving state.

Method Summary

Modifier and Type	Method and Description
ExecutionContext	getExecutionContext() The context in which this step is executing.
String	getStepName() The name of the step.
String	getTransformName() The name of the transform for the step.
void	noteOutput(WindowedValue<?> output) Hook for subclasses to implement that will be called whenever DoFn.Context.output(OutputT) is called.
void	noteSideOutput(TupleTag<?> tag, WindowedValue<?> output) Hook for subclasses to implement that will be called whenever DoFn.Context.sideOutput(com.google.cloud.dataflow.sdk.values.TupleTag<T>, T) is called.
StateInternals	stateInternals()
TimerInternals	timerInternals()
<T,W extends BoundedWindow> void	writePCollectionViewData(TupleTag<?> tag, Iterable<WindowedValue<T>> data, Coder<Iterable<WindowedValue<T>>> dataCoder, W window, Coder<W> windowCoder) Writes the given PCollectionView data to a globally accessible location.

Method Detail

getStepName

String getStepName()

The name of the step.

getTransformName

String getTransformName()

The name of the transform for the step.

getExecutionContext

ExecutionContext getExecutionContext()

The context in which this step is executing.

noteOutput

void noteOutput(WindowedValue<?> output)

Hook for subclasses to implement that will be called whenever DoFn.Context.output(OutputT) is called.

noteSideOutput

void noteSideOutput(TupleTag<?> tag,
                    WindowedValue<?> output)

Hook for subclasses to implement that will be called whenever DoFn.Context.sideOutput(com.google.cloud.dataflow.sdk.values.TupleTag<T>, T) is called.

writePCollectionViewData

<T,W extends BoundedWindow> void writePCollectionViewData(TupleTag<?> tag,
                                                          Iterable<WindowedValue<T>> data,
                                                          Coder<Iterable<WindowedValue<T>>> dataCoder,
                                                          W window,
                                                          Coder<W> windowCoder)
                                                   throws IOException

Writes the given PCollectionView data to a globally accessible location.

Throws:

IOException

stateInternals

StateInternals stateInternals()

timerInternals

TimerInternals timerInternals()