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

Class SpannerIO.ReadAll

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<PCollection<ReadOperation>,PCollection<com.google.cloud.spanner.Struct>>

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

All Implemented Interfaces:

java.io.Serializable, HasDisplayData

Enclosing class:

SpannerIO

@Experimental(value=SOURCE_SINK)
public abstract static class SpannerIO.ReadAll
extends PTransform<PCollection<ReadOperation>,PCollection<com.google.cloud.spanner.Struct>>

Implementation of SpannerIO.readAll().

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

name

Constructor Summary

Constructors

Constructor and Description
ReadAll()

Method Summary

Modifier and Type	Method and Description
PCollection<com.google.cloud.spanner.Struct>	expand(PCollection<ReadOperation> input) Override this method to specify how this PTransform should be expanded on the given InputT.
SpannerIO.ReadAll	withDatabaseId(java.lang.String databaseId) Specifies the Cloud Spanner database.
SpannerIO.ReadAll	withDatabaseId(ValueProvider<java.lang.String> databaseId) Specifies the Cloud Spanner database.
SpannerIO.ReadAll	withInstanceId(java.lang.String instanceId) Specifies the Cloud Spanner instance.
SpannerIO.ReadAll	withInstanceId(ValueProvider<java.lang.String> instanceId) Specifies the Cloud Spanner instance.
SpannerIO.ReadAll	withProjectId(java.lang.String projectId) Specifies the Cloud Spanner project.
SpannerIO.ReadAll	withProjectId(ValueProvider<java.lang.String> projectId) Specifies the Cloud Spanner project.
SpannerIO.ReadAll	withSpannerConfig(SpannerConfig spannerConfig) Specifies the Cloud Spanner configuration.
SpannerIO.ReadAll	withTransaction(PCollectionView<Transaction> transaction)

Methods inherited from class org.apache.beam.sdk.transforms.PTransform

getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, populateDisplayData, toString, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadAll

public ReadAll()

Method Detail

withSpannerConfig

public SpannerIO.ReadAll withSpannerConfig(SpannerConfig spannerConfig)

Specifies the Cloud Spanner configuration.

withProjectId

public SpannerIO.ReadAll withProjectId(java.lang.String projectId)

Specifies the Cloud Spanner project.

withProjectId

public SpannerIO.ReadAll withProjectId(ValueProvider<java.lang.String> projectId)

Specifies the Cloud Spanner project.

withInstanceId

public SpannerIO.ReadAll withInstanceId(java.lang.String instanceId)

Specifies the Cloud Spanner instance.

withInstanceId

public SpannerIO.ReadAll withInstanceId(ValueProvider<java.lang.String> instanceId)

Specifies the Cloud Spanner instance.

withDatabaseId

public SpannerIO.ReadAll withDatabaseId(java.lang.String databaseId)

Specifies the Cloud Spanner database.

withDatabaseId

public SpannerIO.ReadAll withDatabaseId(ValueProvider<java.lang.String> databaseId)

Specifies the Cloud Spanner database.

withTransaction

public SpannerIO.ReadAll withTransaction(PCollectionView<Transaction> transaction)

expand

public PCollection<com.google.cloud.spanner.Struct> expand(PCollection<ReadOperation> input)

Description copied from class: PTransform

Override this method to specify how this 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).

Specified by:

expand in class PTransform<PCollection<ReadOperation>,PCollection<com.google.cloud.spanner.Struct>>