[jira] [Resolved] (CAMEL-9516) DynamodbStreamConsumer should provide for a callback once the stream is being read

["Claus Ibsen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-9516?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen resolved CAMEL-9516.
--------------------------------
    Resolution: Abandoned

> DynamodbStreamConsumer should provide for a callback once the stream is being read
> ----------------------------------------------------------------------------------
>
>                 Key: CAMEL-9516
>                 URL: https://issues.apache.org/jira/browse/CAMEL-9516
>             Project: Camel
>          Issue Type: New Feature
>          Components: camel-aws
>            Reporter: Rachel Evans
>            Priority: Minor
>             Fix For: Future
>
>
> Use case: I want to read and keep up-to-date with the contents of a table.
> Approach: start reading the stream (using DdbStreamConsumer), then _once the consumer has definitely started reading the stream_, i.e. is guaranteed not to miss any future updates, _then_ I scan the table.
> In order to achieve this I need to know when the consumer has started reading the stream.  Specifically, when the first successful call to GetRecords has occurred.
> Possible approach: on the endpoint URI, define a ddbStreamStartupListener bean parameter.
> Given I have a DdbStreamEndpoint with a ddbStreamStartupListener
> When the first call to GetRecords success
> Then the bean should be called synchronously (*before* the consumer proceeds with processing any records that GetRecords returned).
> Of course it is up to the user providing that bean what it does – for example, whether it does something blocking and therefore potentially long, or whether it triggers something async.



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