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From "Esteban Franqueiro (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-1232) Merge UUID to NodeId
Date Fri, 23 Nov 2007 14:56:43 GMT

    [ https://issues.apache.org/jira/browse/JCR-1232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12545041
] 

Esteban Franqueiro commented on JCR-1232:
-----------------------------------------

If getUUID() is used by applications, then I would say a behavior like the following is necessary,
at least for the near future in order not to break them.

>    /**
>     * @deprecated
>     */
>    public UUID getUUID() {
>        return new UUID(msb, lsb);
>    }

If not, the docs should say how to replace its functionality.

> Merge UUID to NodeId
> --------------------
>
>                 Key: JCR-1232
>                 URL: https://issues.apache.org/jira/browse/JCR-1232
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>            Reporter: Jukka Zitting
>            Priority: Minor
>         Attachments: nodeid.patch
>
>
> The current NodeId class is mostly just a wrapper around UUID, which causes two objects
to be instantiated for each node identifier that the system uses. The memory and processing
overhead is quite small, but given that there are tons of NodeId instances it would be good
to eliminate that overhead.
> There is also lots of code that just converts UUIDs to NodeIds and vice versa. We could
simplify such code if we just used NodeId everywhere.
> Also, we might want to open up the possibility of using non-UUID node identifiers at
some point in future, so it would make a lot of sense to remove the NodeId.getUUID method
and rely directly on NodeId and it's equals(), hashCode(), and toString() methods in many
places where we currently use UUIDs.

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