org.apache.beam.sdk.io.gcp.pubsub

Class PubsubSchemaTransformReadProvider

java.lang.Object

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

org.apache.beam.sdk.io.gcp.pubsub.PubsubSchemaTransformReadProvider

All Implemented Interfaces:

SchemaTransformProvider

@Internal
 @Experimental(value=SCHEMAS)
public class PubsubSchemaTransformReadProvider
extends TypedSchemaTransformProvider<PubsubSchemaTransformReadConfiguration>

An implementation of TypedSchemaTransformProvider for Pub/Sub reads configured using PubsubSchemaTransformReadConfiguration.

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.

Constructor Summary

Constructors

Constructor and Description
PubsubSchemaTransformReadProvider()

Method Summary

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

Constructor Detail

PubsubSchemaTransformReadProvider

public PubsubSchemaTransformReadProvider()

Method Detail

configurationClass

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

Returns the expected class of the configuration.

Specified by:

configurationClass in class TypedSchemaTransformProvider<PubsubSchemaTransformReadConfiguration>

from

protected SchemaTransform from(PubsubSchemaTransformReadConfiguration configuration)

Returns the expected SchemaTransform of the configuration.

Specified by:

from in class TypedSchemaTransformProvider<PubsubSchemaTransformReadConfiguration>

identifier

public java.lang.String identifier()

Implementation of the TypedSchemaTransformProvider identifier method.

inputCollectionNames

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

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

outputCollectionNames

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

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