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https://issues.apache.org/jira/browse/OAK-8249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16819875#comment-16819875
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Alex Deparvu commented on OAK-8249:
-----------------------------------

I have updated the wip branch [0] based on feedback so far.

Added a new method to {{EffectiveNodeTypeProvider}} that takes an Iterable, 
deprecated the old one (cannot remove it due to BC concerns).
And it turns out a lot of methods did not actually throw 
{{RepositoryException}}, so I updated the signatures, making for a lot cleaner 
code.
Didn't update the bench numbers as delta is in the same ballpark.

bq. doesn't that mean the current implementation of 
EffectiveNodeTypeProvider.isNodeType(Tree, String) is incorrect then?
Yes I agree this looks fishy. Taking into consideration OAK-7652 and OAK-7997 
this part might have been an oversight.
I will try to clarify this next but will create a dedicated issue to not mix 
things too much.

[0] https://github.com/apache/jackrabbit-oak/compare/trunk...stillalex:OAK-8249

> NodeImpl#isNodeType could load mixin info lazily
> ------------------------------------------------
>
>                 Key: OAK-8249
>                 URL: https://issues.apache.org/jira/browse/OAK-8249
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: jcr
>            Reporter: Alex Deparvu
>            Assignee: Alex Deparvu
>            Priority: Minor
>
> The current isNodeType check loads both primary type and all mixins eagerly.
> I'm wondering how often is the case where someone only needs a primary type 
> check, and if loading the mixins lazily would improve the throughput.



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