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https://issues.apache.org/jira/browse/FLINK-19494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17206787#comment-17206787
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Stephan Ewen commented on FLINK-19494:
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I got an offline comment from [~aljoscha] that we should probably not do that,
because the new source API is not checkpoint-compatible with the old one.
So I am leaning towards:
- deprecate the {{generateSequence()}} method.
- Add a new {{fromSequence()}} method that uses the NumberSequenceSource.
> Adjust "StreamExecutionEnvironment.generateSequence()" to new API Sources
> -------------------------------------------------------------------------
>
> Key: FLINK-19494
> URL: https://issues.apache.org/jira/browse/FLINK-19494
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream
> Reporter: Stephan Ewen
> Priority: Major
> Fix For: 1.12.0
>
>
> The utility method {{StreamExecutionEnvironment.generateSequence(()}} should
> instantiate the new {{NumberSequenceSource}} rather than the existing
> {{StatefulSequenceSource}}.
> We should also deprecate the {{StatefulSequenceSource}} as part of this
> change, because
> - it is based on the legacy source API
> - it is not scalable, because it materializes the sequence
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