org.apache.beam.sdk.io.gcp.firestore

Class FirestoreV1.PartitionQuery

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<InT,OutT>

org.apache.beam.sdk.io.gcp.firestore.FirestoreV1.PartitionQuery

All Implemented Interfaces:

java.io.Serializable, HasDisplayData

Enclosing class:

FirestoreV1

public static final class FirestoreV1.PartitionQuery
extends PTransform<InT,OutT>

Concrete class representing a PTransform<PCollection<PartitionQueryRequest>, PTransform<RunQueryRequest>> which will read from Firestore.

Perform the necessary operations and handling of PartitionQueryResponses to yield a number of RunQueryRequest which are friendly to being executed in parallel.

This class is part of the Firestore Connector DSL, it has a type safe builder accessible via FirestoreIO.v1().read().partitionQuery().

All request quality-of-service for an instance of this PTransform is scoped to the worker and configured via FirestoreV1.Transform.Builder.withRpcQosOptions(RpcQosOptions).

See Also:

FirestoreIO.v1(), FirestoreV1.read(), FirestoreV1.Read.partitionQuery(), FirestoreV1.PartitionQuery.Builder, FirestoreV1.Read.runQuery(), FirestoreV1.RunQuery, FirestoreV1.RunQuery.Builder, PartitionQueryRequest, RunQueryResponse, google.firestore.v1.Firestore.PartitionQuery, google.firestore.v1.PartitionQueryRequest, google.firestore.v1.PartitionQueryResponse, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FirestoreV1.PartitionQuery.Builder A type safe builder for FirestoreV1.PartitionQuery allowing configuration and instantiation.

Field Summary

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

name, resourceHints

Method Summary

Modifier and Type	Method and Description
PCollection<com.google.firestore.v1.RunQueryRequest>	expand(PCollection<com.google.firestore.v1.PartitionQueryRequest> input) Override this method to specify how this PTransform should be expanded on the given InputT.
FirestoreV1.PartitionQuery.Builder	toBuilder() Create a new Builder from the current instance.

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

compose, compose, getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, setResourceHints, toString, validate

Methods inherited from class java.lang.Object

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

Method Detail

expand

public PCollection<com.google.firestore.v1.RunQueryRequest> expand(PCollection<com.google.firestore.v1.PartitionQueryRequest> 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<com.google.firestore.v1.PartitionQueryRequest>,PCollection<com.google.firestore.v1.RunQueryRequest>>

toBuilder

public FirestoreV1.PartitionQuery.Builder toBuilder()

Create a new Builder from the current instance.

Returns:

a new instance of a Builder initialized to the current state of this instance