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https://issues.apache.org/jira/browse/LABS-354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12702670#action_12702670
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Michael Jakl commented on LABS-354:
-----------------------------------
A central persistence layer is a very good idea since it's used by so many
different parts of the system.
Concerning Whiteboard: See Felix for an Apache implementation of it
http://felix.apache.org/site/index.html. On the other hand, wouldn't a simple
RDB interface cover all the requirements?
> Create centralized persistence service handling
> -----------------------------------------------
>
> Key: LABS-354
> URL: https://issues.apache.org/jira/browse/LABS-354
> Project: Labs
> Issue Type: Improvement
> Components: Vysper
> Reporter: Bernd Fondermann
>
> Different parts/extensions need persistence. These are for example: user
> accounts, roster, vcard, offline messages, etc.
> Implementations may rely on RDB, Jackrabbit, in-memory or CouchDB technology.
> If one is exchanged for the other, it is currently required to change every
> persistence service. It would be great to have only one place to change
> between (for example) in-memory and JCR storage.
> This central persistence service manager could be implementing the
> "whiteboard pattern", where implementations don't have to choose a specific
> implementation, but this is reversed: they announce their availability to a
> central registry and the appropriate persistence service is provided.
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