org.apache.beam.sdk.io.fileschematransform

Class FileWriteSchemaTransformProvider

java.lang.Object

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

org.apache.beam.sdk.io.fileschematransform.FileWriteSchemaTransformProvider

All Implemented Interfaces:

SchemaTransformProvider

@AutoService(value=SchemaTransformProvider.class)
public class FileWriteSchemaTransformProvider
extends TypedSchemaTransformProvider<FileWriteSchemaTransformConfiguration>

A TypedSchemaTransformProvider implementation for writing a Row PCollection to file systems, driven by a FileWriteSchemaTransformConfiguration.

Field Summary

Fields

Modifier and Type	Field and Description
static Schema	ERROR_SCHEMA
static Schema.Field	FILE_NAME_FIELD
static Schema	OUTPUT_SCHEMA

Constructor Summary

Constructors

Constructor and Description
FileWriteSchemaTransformProvider()

Method Summary

Modifier and Type	Method and Description
protected java.lang.Class<FileWriteSchemaTransformConfiguration>	configurationClass() Provides the required TypedSchemaTransformProvider.configurationClass().
protected SchemaTransform	from(FileWriteSchemaTransformConfiguration configuration) Builds a SchemaTransform from a FileWriteSchemaTransformConfiguration.
java.lang.String	identifier() Returns the SchemaTransformProvider.identifier() required for registration.
java.util.List<java.lang.String>	inputCollectionNames() The expected PCollectionRowTuple input tags.
java.util.List<java.lang.String>	outputCollectionNames() The expected PCollectionRowTuple output tags.

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

Field Detail

FILE_NAME_FIELD

public static final Schema.Field FILE_NAME_FIELD

OUTPUT_SCHEMA

public static final Schema OUTPUT_SCHEMA

ERROR_SCHEMA

public static final Schema ERROR_SCHEMA

Constructor Detail

FileWriteSchemaTransformProvider

public FileWriteSchemaTransformProvider()

Method Detail

configurationClass

protected java.lang.Class<FileWriteSchemaTransformConfiguration> configurationClass()

Provides the required TypedSchemaTransformProvider.configurationClass().

Overrides:

configurationClass in class TypedSchemaTransformProvider<FileWriteSchemaTransformConfiguration>

from

protected SchemaTransform from(FileWriteSchemaTransformConfiguration configuration)

Builds a SchemaTransform from a FileWriteSchemaTransformConfiguration.

Specified by:

from in class TypedSchemaTransformProvider<FileWriteSchemaTransformConfiguration>

identifier

public java.lang.String identifier()

Returns the SchemaTransformProvider.identifier() required for registration.

inputCollectionNames

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

The expected PCollectionRowTuple input tags.

outputCollectionNames

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

The expected PCollectionRowTuple output tags.