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https://issues.apache.org/jira/browse/FLINK-25696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jingsong Lee updated FLINK-25696:
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Summary: Introduce metadataConsumer to InitContext in Sink (was: Introduce
MetadataPublisher interface to SinkWriter)
> Introduce metadataConsumer to InitContext in Sink
> -------------------------------------------------
>
> Key: FLINK-25696
> URL: https://issues.apache.org/jira/browse/FLINK-25696
> Project: Flink
> Issue Type: New Feature
> Components: API / DataStream, Connectors / Kafka, Table Store
> Reporter: Jingsong Lee
> Assignee: Jingsong Lee
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.15.0
>
>
> In Table Store, we want to get the offsets of kafka writer, only the offset
> returned by the callback inside the KafkaWriter is accurate, so we need this
> callback mechanism.
> This ticket wants to add a interface MetadataPublisher:
> {code:java}
> public interface MetadataPublisher<MetaT> {
> void subscribe(Consumer<MetaT> consumer);
> } {code}
> SinkWriter can implement this interface, so that table store can subscribe
> metadata from SinkWriter.
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