Package io.debezium.pipeline.source.spi

Interface SnapshotChangeEventSource<P extends Partition,O extends OffsetContext>

All Superinterfaces:

ChangeEventSource

All Known Implementing Classes:

AbstractSnapshotChangeEventSource, RelationalSnapshotChangeEventSource

public interface SnapshotChangeEventSource<P extends Partition,O extends OffsetContext>
extends ChangeEventSource

A change event source that emits events for taking a consistent snapshot of the captured tables, which may include schema and data information.

Author:

Gunnar Morling

Nested Class Summary

Nested classes/interfaces inherited from interface io.debezium.pipeline.source.spi.ChangeEventSource

ChangeEventSource.ChangeEventSourceContext

Method Summary

Modifier and Type	Method	Description
SnapshotResult<O>	execute(ChangeEventSource.ChangeEventSourceContext context, P partition, O previousOffset)	Executes this source.

Method Details

execute

SnapshotResult<O> execute(ChangeEventSource.ChangeEventSourceContext context,
 P partition,
 O previousOffset)
                   throws InterruptedException

Executes this source. Implementations should regularly check via the given context if they should stop. If that's the case, they should abort their processing and perform any clean-up needed, such as rolling back pending transactions, releasing locks etc.

Parameters:

context - contextual information for this source's execution

partition - the source partition from which the snapshot should be taken

previousOffset - previous offset restored from Kafka

Returns:

an indicator to the position at which the snapshot was taken

Throws:

InterruptedException - in case the snapshot was aborted before completion