Package io.debezium.connector.spanner.db.model.event

Class ChildPartitionsEvent

java.lang.Object

io.debezium.connector.spanner.db.model.event.ChildPartitionsEvent

All Implemented Interfaces:

ChangeStreamEvent

public class ChildPartitionsEvent
extends Object
implements ChangeStreamEvent

Specific DTO for Spanner Change Stream Child event

Field Summary

Fields

Modifier and Type	Field	Description
private final List<ChildPartition>	childPartitions
private final StreamEventMetadata	metadata
private final String	recordSequence
private final com.google.cloud.Timestamp	startTimestamp

Constructor Summary

Constructors

Constructor	Description
ChildPartitionsEvent(com.google.cloud.Timestamp startTimestamp, String recordSequence, List<ChildPartition> childPartitions, StreamEventMetadata metadata)	Constructs a child partitions record containing one or more child partitions.

Method Summary

Modifier and Type	Method	Description
List<ChildPartition>	getChildPartitions()	List of child partitions yielded within this record.
StreamEventMetadata	getMetadata()
String	getRecordSequence()	Indicates the order in which a record was put to the stream.
com.google.cloud.Timestamp	getRecordTimestamp()	Returns the start timestamp of the child partition.
com.google.cloud.Timestamp	getStartTimestamp()	It is the partition_start_time of the child partition token.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

startTimestamp

private final com.google.cloud.Timestamp startTimestamp

recordSequence

private final String recordSequence

childPartitions

private final List<ChildPartition> childPartitions

metadata

private final StreamEventMetadata metadata

Constructor Details

ChildPartitionsEvent

public ChildPartitionsEvent(com.google.cloud.Timestamp startTimestamp,
 String recordSequence,
 List<ChildPartition> childPartitions,
 StreamEventMetadata metadata)

Constructs a child partitions record containing one or more child partitions.

Parameters:

startTimestamp - the timestamp which this partition started being valid in Cloud Spanner

recordSequence - the order within a partition and a transaction in which the record was put to the stream

childPartitions - child partition tokens emitted within this record

metadata - connector execution metadata for the given record

Method Details

getRecordTimestamp

public com.google.cloud.Timestamp getRecordTimestamp()

Returns the start timestamp of the child partition. The caller must use this time as the change stream query start timestamp for the new partitions.

Specified by:

getRecordTimestamp in interface ChangeStreamEvent

Returns:

the start timestamp of the partition

getStartTimestamp

public com.google.cloud.Timestamp getStartTimestamp()

It is the partition_start_time of the child partition token. This partition_start_time is guaranteed to be the same across all the child partitions yielded from a parent. When users start new queries with the child partition tokens, the returned records must have a timestamp >= partition_start_time.

Returns:

the start timestamp of the partition

getRecordSequence

public String getRecordSequence()

Indicates the order in which a record was put to the stream. Is unique and increasing within a partition. It is relative to the scope of partition, commit timestamp, and server_transaction_id. It is useful for readers downstream to deduplicate any records that were read/recorded.

Returns:

record sequence of the record

getChildPartitions

public List<ChildPartition> getChildPartitions()

List of child partitions yielded within this record.

Returns:

child partitions

getMetadata

public StreamEventMetadata getMetadata()

Specified by:

getMetadata in interface ChangeStreamEvent

toString

public String toString()

Overrides:

toString in class Object