org.apache.beam.runners.samza.transforms

Class GroupWithoutRepartition<InputT extends org.apache.beam.sdk.values.PInput,OutputT extends org.apache.beam.sdk.values.POutput>

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<InputT,OutputT>

org.apache.beam.runners.samza.transforms.GroupWithoutRepartition<InputT,OutputT>

All Implemented Interfaces:

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

public class GroupWithoutRepartition<InputT extends org.apache.beam.sdk.values.PInput,OutputT extends org.apache.beam.sdk.values.POutput>
extends org.apache.beam.sdk.transforms.PTransform<InputT,OutputT>

A wrapper transform of GroupByKey or CoGroupByKey to indicate there is no repartition needed for Samza runner. For example:

input.apply(GroupWithoutRepartition.of(Count.perKey()));

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

annotations, name, resourceHints

Method Summary

Modifier and Type	Method and Description
OutputT	expand(InputT input)
static <InputT extends org.apache.beam.sdk.values.PInput,OutputT extends org.apache.beam.sdk.values.POutput> GroupWithoutRepartition<InputT,OutputT>	of(org.apache.beam.sdk.transforms.PTransform<InputT,OutputT> transform)

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

addAnnotation, compose, compose, getAdditionalInputs, getAnnotations, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setResourceHints, toString, validate, validate

Methods inherited from class java.lang.Object

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

Method Detail

of

public static <InputT extends org.apache.beam.sdk.values.PInput,OutputT extends org.apache.beam.sdk.values.POutput> GroupWithoutRepartition<InputT,OutputT> of(org.apache.beam.sdk.transforms.PTransform<InputT,OutputT> transform)

expand

public OutputT expand(InputT input)

Specified by:

expand in class org.apache.beam.sdk.transforms.PTransform<InputT extends org.apache.beam.sdk.values.PInput,OutputT extends org.apache.beam.sdk.values.POutput>