org.apache.beam.sdk.extensions.sql.impl.schema

Class BeamPCollectionTable<InputT>

java.lang.Object

org.apache.beam.sdk.extensions.sql.meta.BaseBeamTable

org.apache.beam.sdk.extensions.sql.meta.SchemaBaseBeamTable

org.apache.beam.sdk.extensions.sql.impl.schema.BeamPCollectionTable<InputT>

All Implemented Interfaces:

java.io.Serializable, BeamSqlTable

public class BeamPCollectionTable<InputT>
extends SchemaBaseBeamTable

BeamPCollectionTable converts a PCollection<Row> as a virtual table, then a downstream query can query directly.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.extensions.sql.meta.SchemaBaseBeamTable

schema

Constructor Summary

Constructors

Constructor and Description
BeamPCollectionTable(org.apache.beam.sdk.values.PCollection<InputT> upstream)

Method Summary

Modifier and Type	Method and Description
org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row>	buildIOReader(org.apache.beam.sdk.values.PBegin begin) create a PCollection<Row> from source.
org.apache.beam.sdk.values.POutput	buildIOWriter(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row> input) create a IO.write() instance to write to target.
org.apache.beam.sdk.values.PCollection.IsBounded	isBounded() Whether this table is bounded (known to be finite) or unbounded (may or may not be finite).

Methods inherited from class org.apache.beam.sdk.extensions.sql.meta.SchemaBaseBeamTable

getSchema

Methods inherited from class org.apache.beam.sdk.extensions.sql.meta.BaseBeamTable

buildIOReader, constructFilter, getTableStatistics, supportsProjects

Methods inherited from class java.lang.Object

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

Constructor Detail

BeamPCollectionTable

public BeamPCollectionTable(org.apache.beam.sdk.values.PCollection<InputT> upstream)

Method Detail

isBounded

public org.apache.beam.sdk.values.PCollection.IsBounded isBounded()

Description copied from interface: BeamSqlTable

Whether this table is bounded (known to be finite) or unbounded (may or may not be finite).

buildIOReader

public org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row> buildIOReader(org.apache.beam.sdk.values.PBegin begin)

Description copied from interface: BeamSqlTable

create a PCollection<Row> from source.

buildIOWriter

public org.apache.beam.sdk.values.POutput buildIOWriter(org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row> input)

Description copied from interface: BeamSqlTable

create a IO.write() instance to write to target.