Unique identifier for documents stored in Jackrabbit

Question

I m fairly new to Apache Jackrabbit and I could not get a concrete answer to this question as far as I checked. Hence I m posting the following question:

I need a unique identifier for the documents stored in Jackrabbit (irrespective of whether the documents are stored in File System or DB). I did found a method getIdentifier() in javax.jcr.Node. But not sure whether it unique for each document node inside the repository and whether can I rely on this identfier to fetch the document for updation or deletion?

Basically I m looking for a unique identifier like the one returned from new IDfSysObject().getObjectId().getId() in case of Documentum through which I can back track the document.

Julian Reschke · Accepted Answer · 2017-08-09T05:45:21.360

1

The identifier is indeed unique, but it might not be stable (for instance, when the document is moved around).

You can make it stable though by adding the mixin type "mix:referenceable" (see https://docs.adobe.com/docs/en/spec/jcr/2.0/3_Repository_Model.html#3.8%20Referenceable%20Nodes)

edited Aug 09 '17 at 05:45

answered Jul 28 '17 at 12:30

Julian Reschke

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Could you please elaborate on what you exactly mean by document is moving around? You mean moved to a different folder or workspace? – Gandhi Jul 28 '17 at 13:40
Yes, moved to a different location in the hierarchy. – Julian Reschke Jul 28 '17 at 15:03
Thanks for the response. So as you said with "mix:referenceable" i m good to go with node.getidentifier to uniquely refer a document right? – Gandhi Jul 28 '17 at 15:06
Yes, that's what it is for. – Julian Reschke Jul 28 '17 at 15:12
Thanks again. Cheers – Gandhi Jul 28 '17 at 15:13

Unique identifier for documents stored in Jackrabbit

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