Package org.apache.beam.sdk.io.jdbc

Class JdbcReadSchemaTransformProvider.JdbcReadSchemaTransform

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<PCollectionRowTuple,PCollectionRowTuple>

org.apache.beam.sdk.schemas.transforms.SchemaTransform

org.apache.beam.sdk.io.jdbc.JdbcReadSchemaTransformProvider.JdbcReadSchemaTransform

All Implemented Interfaces:

Serializable, HasDisplayData

Enclosing class:

JdbcReadSchemaTransformProvider

protected static class JdbcReadSchemaTransformProvider.JdbcReadSchemaTransform
extends SchemaTransform
implements Serializable

See Also:

• Serialized Form

Field Summary

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

annotations, displayData, name, resourceHints

Constructor Summary

Constructors

Constructor	Description
JdbcReadSchemaTransform(JdbcReadSchemaTransformProvider.JdbcReadSchemaTransformConfiguration config, String jdbcType)

Method Summary

Modifier and Type	Method	Description
protected JdbcIO.DataSourceConfiguration	dataSourceConfiguration()
PCollectionRowTuple	expand(PCollectionRowTuple 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

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

Constructor Details

JdbcReadSchemaTransform

public JdbcReadSchemaTransform(JdbcReadSchemaTransformProvider.JdbcReadSchemaTransformConfiguration config,
 String jdbcType)

Method Details

dataSourceConfiguration

protected JdbcIO.DataSourceConfiguration dataSourceConfiguration()

expand

public PCollectionRowTuple expand(PCollectionRowTuple 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<PCollectionRowTuple,PCollectionRowTuple>