org.apache.beam.sdk.io.gcp.spanner

Class SpannerReadSchemaTransformProvider

java.lang.Object

org.apache.beam.sdk.schemas.transforms.TypedSchemaTransformProvider<SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration>

org.apache.beam.sdk.io.gcp.spanner.SpannerReadSchemaTransformProvider

All Implemented Interfaces:

SchemaTransformProvider

@AutoService(value=SchemaTransformProvider.class)
public class SpannerReadSchemaTransformProvider
extends TypedSchemaTransformProvider<SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration>

A provider for reading from Cloud Spanner using a Schema Transform Provider.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration

Constructor Summary

Constructors

Constructor and Description
SpannerReadSchemaTransformProvider()

Method Summary

Modifier and Type	Method and Description
protected java.lang.Class<SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration>	configurationClass()
java.lang.String	description() Returns a description regarding the SchemaTransform represented by the SchemaTransformProvider.
protected SchemaTransform	from(SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration configuration) Produce a SchemaTransform from ConfigT.
java.lang.String	identifier() Returns an id that uniquely represents this transform.
java.util.List<java.lang.String>	inputCollectionNames() Returns the input collection names of this transform.
java.util.List<java.lang.String>	outputCollectionNames() Returns the output collection names of this transform.

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

Constructor Detail

SpannerReadSchemaTransformProvider

public SpannerReadSchemaTransformProvider()

Method Detail

identifier

public java.lang.String identifier()

Description copied from interface: SchemaTransformProvider

Returns an id that uniquely represents this transform.

description

public java.lang.String description()

Description copied from interface: SchemaTransformProvider

Returns a description regarding the SchemaTransform represented by the SchemaTransformProvider. Please keep the language generic (i.e. not specific to any programming language). The description may be markdown formatted.

inputCollectionNames

public java.util.List<java.lang.String> inputCollectionNames()

Description copied from interface: SchemaTransformProvider

Returns the input collection names of this transform.

outputCollectionNames

public java.util.List<java.lang.String> outputCollectionNames()

Description copied from interface: SchemaTransformProvider

Returns the output collection names of this transform.

configurationClass

protected java.lang.Class<SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration> configurationClass()

Overrides:

configurationClass in class TypedSchemaTransformProvider<SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration>

from

protected SchemaTransform from(SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration configuration)

Description copied from class: TypedSchemaTransformProvider

Produce a SchemaTransform from ConfigT. Can throw a InvalidConfigurationException or a InvalidSchemaException.

Specified by:

from in class TypedSchemaTransformProvider<SpannerReadSchemaTransformProvider.SpannerReadSchemaTransformConfiguration>