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https://issues.apache.org/jira/browse/OAK-5021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15622800#comment-15622800
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Stefan Egli commented on OAK-5021:
----------------------------------
Main implementation done
[here|http://svn.apache.org/viewvc?rev=1767337&view=rev], which introduces:
{code}
public abstract OakEventFilter withNodeTypeAggregate(final String[] nodeTypes,
final String[] relativeGlobPaths);
{code}
to the OakEventFilter. This allows to register a filter listening on changes
below a node matching a set of node types. The change can happen in a number of
subpaths and is subsequently 'aggregated', ie the event reporting the change
has the location set to the node matching the set of node types (and the path
still pointing to the actual change).
> Improve observation of files
> ----------------------------
>
> Key: OAK-5021
> URL: https://issues.apache.org/jira/browse/OAK-5021
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: jcr
> Affects Versions: 1.5.12
> Reporter: Stefan Egli
> Assignee: Stefan Egli
>
> (Originally reported as JCR-4046, but moved to Oak as a result of introducing
> the OakEventFilter in OAK-5013. From the original description: )
> A file in JCR is represented by at least two nodes, the nt:file node and a
> child node named jcr:content holding the contents of the file (and metadata).
> This has the consequence that if the contents of a file changes, a change
> event of the jcr:content node is reported - but not of the nt:file node.
> This makes creating listeners listening for changes in files complicated, as
> you can't use the file name to filter - especially with glob patterns (see
> JCR-4044 - now OAK-5019) this becomes troublesome.
> In addition, whenever you get a change for a jcr:content node, you have to
> check if the parent is a nt:file node and decide based on the result.
> It would be great to have a flag on the JackrabbitEventFilter to enable
> smarter reporting just for nt:files: if a property on jcr:content is changed,
> a change to the nt:file node is reported.
> See also SLING-6163 and OAK-4940
> /cc [~cziegeler]
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