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https://issues.apache.org/jira/browse/CALCITE-4787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17418802#comment-17418802
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Jacques Nadeau commented on CALCITE-4787:
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Given the incremental strategy described above, I'm going to undertake the work
of converting the calcite core module with this new pattern. As the goal is no
code change required in external projects, I'll use the other unchanged modules
to prove that the dual behavior works.
> Evaluate use of Immutables instead of ImmutableBeans
> ----------------------------------------------------
>
> Key: CALCITE-4787
> URL: https://issues.apache.org/jira/browse/CALCITE-4787
> Project: Calcite
> Issue Type: Improvement
> Reporter: Jacques Nadeau
> Assignee: Jacques Nadeau
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> In the creation of CALCITE-3328, [Immutables|https://immutables.github.io/]
> was discussed as an alternative to a custom implementation. This ticket is to
> evaluate the impact to the codebase of changing. Ideally, introduction of
> immutables would both add flexibility and reduce the amount of code
> associated with these classes.
> Immutables works via annotation processor which means that it is should be
> relatively seamless to build systems and IDEs.
> The switch would also make it easier to work with these objects types in the
> context of aot compilation tools like GraalVM.
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