Package org.apache.beam.sdk.io.gcp.bigquery

Class BigQueryExportReadSchemaTransformProvider

java.lang.Object

org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider<BigQueryExportReadSchemaTransformConfiguration>

org.apache.beam.sdk.io.gcp.bigquery.BigQueryExportReadSchemaTransformProvider

All Implemented Interfaces:

SchemaTransformProvider

@Internal
@AutoService(SchemaTransformProvider.class)
public class BigQueryExportReadSchemaTransformProvider
extends TypedSchemaTransformProvider<BigQueryExportReadSchemaTransformConfiguration>

An implementation of TypedSchemaTransformProvider for BigQuery read jobs configured using BigQueryExportReadSchemaTransformConfiguration.

Internal only: This class is actively being worked on, and it will likely change. We provide no backwards compatibility guarantees, and it should not be implemented outside the Beam repository.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	BigQueryExportReadSchemaTransformProvider.BigQueryExportSchemaTransform	An implementation of SchemaTransform for BigQuery read jobs configured using BigQueryExportReadSchemaTransformConfiguration.

Constructor Summary

Constructors

Constructor	Description
BigQueryExportReadSchemaTransformProvider()

Method Summary

Modifier and Type	Method	Description
protected Class<BigQueryExportReadSchemaTransformConfiguration>	configurationClass()	Returns the expected class of the configuration.
protected SchemaTransform	from(BigQueryExportReadSchemaTransformConfiguration configuration)	Returns the expected SchemaTransform of the configuration.
String	identifier()	Implementation of the TypedSchemaTransformProvider identifier method.
List<String>	inputCollectionNames()	Implementation of the TypedSchemaTransformProvider inputCollectionNames method.
List<String>	outputCollectionNames()	Implementation of the TypedSchemaTransformProvider outputCollectionNames method.

Methods inherited from class org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider

configurationSchema, dependencies, from

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.beam.sdk.schemas.transforms.SchemaTransformProvider

description

Constructor Details

BigQueryExportReadSchemaTransformProvider

public BigQueryExportReadSchemaTransformProvider()

Method Details

configurationClass

protected Class<BigQueryExportReadSchemaTransformConfiguration> configurationClass()

Returns the expected class of the configuration.

Overrides:

configurationClass in class TypedSchemaTransformProvider<BigQueryExportReadSchemaTransformConfiguration>

from

protected SchemaTransform from(BigQueryExportReadSchemaTransformConfiguration configuration)

Returns the expected SchemaTransform of the configuration.

Specified by:

from in class TypedSchemaTransformProvider<BigQueryExportReadSchemaTransformConfiguration>

identifier

public String identifier()

Implementation of the TypedSchemaTransformProvider identifier method.

inputCollectionNames

public List<String> inputCollectionNames()

Implementation of the TypedSchemaTransformProvider inputCollectionNames method. Since no input is expected, this returns an empty list.

outputCollectionNames

public List<String> outputCollectionNames()

Implementation of the TypedSchemaTransformProvider outputCollectionNames method. Since a single output is expected, this returns a list with a single name.