org.apache.beam.sdk.extensions.sql.meta.provider.text

Class BeamTextCSVTableIOReader

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<PCollection<java.lang.String>,PCollection<Row>>

org.apache.beam.sdk.extensions.sql.meta.provider.text.BeamTextCSVTableIOReader

All Implemented Interfaces:

java.io.Serializable, HasDisplayData

public class BeamTextCSVTableIOReader
extends PTransform<PCollection<java.lang.String>,PCollection<Row>>
implements java.io.Serializable

IOReader for BeamTextCSVTable.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.commons.csv.CSVFormat	csvFormat
protected Schema	schema

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

name

Constructor Summary

Constructors

Constructor and Description
BeamTextCSVTableIOReader(Schema schema, java.lang.String filePattern, org.apache.commons.csv.CSVFormat csvFormat)

Method Summary

Modifier and Type	Method and Description
PCollection<Row>	expand(PCollection<java.lang.String> input) Override this method to specify how this PTransform should be expanded on the given InputT.

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

Field Detail

schema

protected Schema schema

csvFormat

protected org.apache.commons.csv.CSVFormat csvFormat

Constructor Detail

BeamTextCSVTableIOReader

public BeamTextCSVTableIOReader(Schema schema,
                                java.lang.String filePattern,
                                org.apache.commons.csv.CSVFormat csvFormat)

Method Detail

expand

public PCollection<Row> expand(PCollection<java.lang.String> 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<java.lang.String>,PCollection<Row>>