org.apache.beam.runners.direct

Interface BundleFactory

public interface BundleFactory

A factory that creates UncommittedBundles.

Method Summary

Modifier and Type	Method and Description
<T> org.apache.beam.runners.direct.DirectRunner.UncommittedBundle<T>	createBundle(PCollection<T> output) Create an DirectRunner.UncommittedBundle from the specified input.
<K,T> org.apache.beam.runners.direct.DirectRunner.UncommittedBundle<T>	createKeyedBundle(org.apache.beam.runners.direct.StructuralKey<K> key, PCollection<T> output) Create an DirectRunner.UncommittedBundle with the specified keys at the specified step.
<T> org.apache.beam.runners.direct.DirectRunner.UncommittedBundle<T>	createRootBundle() Create an DirectRunner.UncommittedBundle from an empty input.

Method Detail

createRootBundle

<T> org.apache.beam.runners.direct.DirectRunner.UncommittedBundle<T> createRootBundle()

Create an DirectRunner.UncommittedBundle from an empty input. Elements added to the bundle do not belong to a PCollection.

For use in creating inputs to root transforms.

createBundle

<T> org.apache.beam.runners.direct.DirectRunner.UncommittedBundle<T> createBundle(PCollection<T> output)

Create an DirectRunner.UncommittedBundle from the specified input. Elements added to the bundle belong to the output PCollection.

createKeyedBundle

<K,T> org.apache.beam.runners.direct.DirectRunner.UncommittedBundle<T> createKeyedBundle(org.apache.beam.runners.direct.StructuralKey<K> key,
                                                                                         PCollection<T> output)

Create an DirectRunner.UncommittedBundle with the specified keys at the specified step. For use by DirectGroupByKey.DirectGroupByKeyOnly PTransforms. Elements added to the bundle belong to the output PCollection.