protected static class BigQueryDirectReadSchemaTransformProvider.BigQueryDirectReadSchemaTransform extends SchemaTransform
SchemaTransform
for BigQuery Storage Read API, configured with BigQueryDirectReadSchemaTransformProvider.BigQueryDirectReadSchemaTransformConfiguration
and instantiated by BigQueryDirectReadSchemaTransformProvider
.annotations, displayData, name, resourceHints
Modifier and Type | Method and Description |
---|---|
PCollectionRowTuple |
expand(PCollectionRowTuple input)
Override this method to specify how this
PTransform should be expanded on the given
InputT . |
void |
setBigQueryServices(BigQueryServices testBigQueryServices) |
addAnnotation, compose, compose, getAdditionalInputs, getAnnotations, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setDisplayData, setResourceHints, toString, validate, validate
public void setBigQueryServices(BigQueryServices testBigQueryServices)
public PCollectionRowTuple expand(PCollectionRowTuple input)
PTransform
PTransform
should be expanded on the given
InputT
.
NOTE: This method should not be called directly. Instead apply the PTransform
should
be applied to the InputT
using the apply
method.
Composite transforms, which are defined in terms of other transforms, should return the output of one of the composed transforms. Non-composite transforms, which do not apply any transforms internally, should return a new unbound output and register evaluators (via backend-specific registration methods).
expand
in class PTransform<PCollectionRowTuple,PCollectionRowTuple>