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https://issues.apache.org/jira/browse/FLINK-29938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17637367#comment-17637367
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Danny Cranmer commented on FLINK-29938:
---------------------------------------
Merged commit
[{{91c4d86}}|https://github.com/apache/flink/commit/91c4d865eabad0f7f1b8c7426d87e86afa06d6f6]
into apache:master
> Add open() Method to AsyncSink ElementConverter
> -----------------------------------------------
>
> Key: FLINK-29938
> URL: https://issues.apache.org/jira/browse/FLINK-29938
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Common
> Reporter: Danny Cranmer
> Assignee: Danny Cranmer
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.17.0
>
>
> The {{ElementConverter}} is used to convert records to objects that a Sink
> can deliver to a destination. In some sink implementations, the
> {{ElementConverter}} needs to be serialized and sent to TM, DynamoDB is a
> good example [1]. For DynamoDB we need to lazily instantiate some objects,
> and an `open()` method would provide a clean hook for this.
> [1]
> https://github.com/apache/flink-connector-aws/blob/main/flink-connector-dynamodb/src/main/java/org/apache/flink/connector/dynamodb/sink/DynamoDBEnhancedElementConverter.java#L57
>
>
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