org.apache.beam.sdk.expansion.service

Interface ExpansionService.ExpansionServiceRegistrar

All Known Implementing Classes:

ExpansionService.ExternalTransformRegistrarLoader

Enclosing class:

ExpansionService

public static interface ExpansionService.ExpansionServiceRegistrar

A registrar that creates ExpansionService.TransformProvider instances from RunnerApi.FunctionSpecs.

Transform authors have the ability to provide a registrar by creating a ServiceLoader entry and a concrete implementation of this interface.

It is optional but recommended to use one of the many build time tools such as AutoService to generate the necessary META-INF files automatically.

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.lang.String,ExpansionService.TransformProvider>	knownTransforms()

Method Detail

knownTransforms

java.util.Map<java.lang.String,ExpansionService.TransformProvider> knownTransforms()