[jira] [Updated] (OAK-2242) provide a way to update the "created" timestamp of a NodeDocument

["Davide Giannella (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OAK-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Davide Giannella updated OAK-2242:
----------------------------------
    Fix Version/s:     (was: 1.1.2)
                   1.2

> provide a way to update the "created" timestamp of a NodeDocument
> -----------------------------------------------------------------
>
>                 Key: OAK-2242
>                 URL: https://issues.apache.org/jira/browse/OAK-2242
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: mongomk
>    Affects Versions: 1.1.1
>            Reporter: Julian Reschke
>            Assignee: Julian Reschke
>             Fix For: 1.2
>
>
> Both the MongoDocumentStore and the RDBDocumentStore maintain a "_modCount" property, which uniquely identifies a version of a document in the persistence.
> Sometimes, we read data from the persistence although we already might have the document cached. This happens:
> a) when the cached document is older than what the caller asked for
> b) when running a query (for instance when looking up children of a node)
> In both cases, we currently replace the cache entry with a newly built NodeDocument.
> It would make sense to re-use the existing document instead. (This would probably require modifying the "created" timestamp, but would avoid the trouble of having to update the cache at all) 



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