org.apache.beam.sdk.io.gcp.datastore

Class EntityToRow

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<com.google.datastore.v1.Entity>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row>>

org.apache.beam.sdk.io.gcp.datastore.EntityToRow

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

public class EntityToRow
extends org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<com.google.datastore.v1.Entity>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row>>

A PTransform to perform a conversion of Entity to Row.

See Also:

Serialized Form

Field Summary

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

annotations, displayData, name, resourceHints

Method Summary

Modifier and Type	Method and Description
static EntityToRow	create(org.apache.beam.sdk.schemas.Schema schema, java.lang.String keyField) Create a PTransform instance.
org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row>	expand(org.apache.beam.sdk.values.PCollection<com.google.datastore.v1.Entity> input)

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

addAnnotation, compose, compose, getAdditionalInputs, getAnnotations, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setDisplayData, setResourceHints, toString, validate, validate

Methods inherited from class java.lang.Object

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

Method Detail

create

public static EntityToRow create(org.apache.beam.sdk.schemas.Schema schema,
                                 java.lang.String keyField)

Create a PTransform instance.

Parameters:

schema - Schema of the target row.

keyField - A name of the row field to store the Key in.

Returns:

PTransform instance for Entity to Row conversion.

expand

public org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row> expand(org.apache.beam.sdk.values.PCollection<com.google.datastore.v1.Entity> input)

Specified by:

expand in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PCollection<com.google.datastore.v1.Entity>,org.apache.beam.sdk.values.PCollection<org.apache.beam.sdk.values.Row>>