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https://issues.apache.org/jira/browse/OAK-3578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14989682#comment-14989682
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Julian Reschke commented on OAK-3578:
-------------------------------------
...it seems that the fact that {{null}} can mean two different things
(condition not met, or no previous document) is really unfortunate. Maybe this
is something we should fix?
> DocumentStore API: introduce void variant of findAndUpdate
> ----------------------------------------------------------
>
> Key: OAK-3578
> URL: https://issues.apache.org/jira/browse/OAK-3578
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: documentmk
> Reporter: Julian Reschke
> Assignee: Julian Reschke
> Attachments: OAK-3578.diff
>
>
> {{findAndUpdate}} returns the previous state of the document (when
> applicable). However, this information is not always needed by the caller and
> may be expensive to obtain.
> Thus split the API into two different methods, so that DocumentStore
> implementations can optimize the void variant.
> Proposal: {{void update}} and {{T findAndUpdate}}.
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