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From Michael Dürig <mdue...@apache.org>
Subject Re: oak: allowing sns for nt:file using mixin
Date Fri, 08 Aug 2014 07:59:18 GMT


On 5.8.14 12:56 , Torgeir Veimo wrote:
> Two questions: Is there any technical reason jcr clients can't use the
> name[index] name pattern, similar to oak internal?

The only reason I see is that there didn't seem to be much of a need so 
far. That's probably also why OAK-203 is still open.

>
> When importing content from jackrabbit which contains content with
> SNS, what't the recommended approach to edit such nodes? Now I'm
> getting exceptions like

How do you import that content? It is recommended to go through the 
upgrade functionality of oak-run. See 
https://github.com/apache/jackrabbit-oak/tree/trunk/oak-run.

Michael

>
> 20:38:35,833 ERROR services.RepositoryAdminService.addProperty() -
> line 331 [127.0.0.1] - unable to add property;
> javax.jcr.PathNotFoundException: /nen:content[2]
> at org.apache.jackrabbit.oak.jcr.session.SessionContext.getOakPathOrThrowNotFound(SessionContext.java:358)
> at org.apache.jackrabbit.oak.jcr.version.VersionManagerImpl.getOakPathOrThrowNotFound(VersionManagerImpl.java:248)
> at org.apache.jackrabbit.oak.jcr.version.VersionManagerImpl.access$000(VersionManagerImpl.java:53)
>
> Is it expected that all content imported from jackrabbit is to fixup
> all existing node names to avoid SNS and avoid using the name[index]
> name pattern, before such content can be modified in oak?
>
>
>
> On 5 August 2014 17:13, Michael Dürig <mduerig@apache.org> wrote:
>>
>>
>> On 5.8.14 2:56 , Torgeir Veimo wrote:
>>>
>>> So since that issue is unresolved, I assume I have to add the index
>>> manually. If I then use a naming scheme like name[index], I get an
>>> exception;
>>>
>>> javax.jcr.RepositoryException: Cannot create a new node using a name
>>> including an index
>>
>>
>> AFAIR you currently can't do that through the JCR API with Oak. This is only
>> supported on Oak's internal interfaces: "the underlying oak-core and
>> microkernel -level SNS nodes simply used the "name[index]" naming pattern
>> with no extra semantics associated with it." [1]. We added this so Oak can
>> cope with e.g. node type definitions, which make use of SNSs.
>>
>> Michael
>>
>> [1] https://issues.apache.org/jira/browse/OAK-203
>
>
>

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