org.apache.beam.io.debezium

Class DebeziumIO.Read<T>

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<PBegin,PCollection<T>>

org.apache.beam.io.debezium.DebeziumIO.Read<T>

All Implemented Interfaces:

java.io.Serializable, HasDisplayData

Enclosing class:

DebeziumIO

public abstract static class DebeziumIO.Read<T>
extends PTransform<PBegin,PCollection<T>>

Implementation of DebeziumIO.read().

See Also:

Serialized Form

Field Summary

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

name

Constructor Summary

Constructors

Constructor and Description
Read()

Method Summary

Modifier and Type	Method and Description
PCollection<T>	expand(PBegin input) Override this method to specify how this PTransform should be expanded on the given InputT.
DebeziumIO.Read<T>	withCoder(Coder<T> coder) Applies a Coder to the connector.
DebeziumIO.Read<T>	withConnectorConfiguration(DebeziumIO.ConnectorConfiguration config) Applies the given configuration to the connector.
DebeziumIO.Read<T>	withFormatFunction(SourceRecordMapper<T> mapperFn) Applies a SourceRecordMapper to the connector.
DebeziumIO.Read<T>	withMaxNumberOfRecords(java.lang.Integer maxNumberOfRecords) Once the specified number of records has been reached, it will stop fetching them.

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

compose, compose, 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

Constructor Detail

Read

public Read()

Method Detail

withConnectorConfiguration

public DebeziumIO.Read<T> withConnectorConfiguration(DebeziumIO.ConnectorConfiguration config)

Applies the given configuration to the connector. It cannot be null.

Parameters:

config - Configuration to be used within the connector.

Returns:

PTransform DebeziumIO.read()

withFormatFunction

public DebeziumIO.Read<T> withFormatFunction(SourceRecordMapper<T> mapperFn)

Applies a SourceRecordMapper to the connector. It cannot be null.

Parameters:

mapperFn - the mapper function to be used on each SourceRecord.

Returns:

PTransform DebeziumIO.read()

withCoder

public DebeziumIO.Read<T> withCoder(Coder<T> coder)

Applies a Coder to the connector. It cannot be null

Parameters:

coder - The Coder to be used over the data.

Returns:

PTransform DebeziumIO.read()

withMaxNumberOfRecords

public DebeziumIO.Read<T> withMaxNumberOfRecords(java.lang.Integer maxNumberOfRecords)

Once the specified number of records has been reached, it will stop fetching them. The value can be null (default) which means it will not stop.

Parameters:

maxNumberOfRecords - The maximum number of records to be fetched before stop.

Returns:

PTransform DebeziumIO.read()

expand

public PCollection<T> expand(PBegin 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<PBegin,PCollection<T>>