Hello,

On 23.11.2010 14:52, Torgeir Veimo wrote:
On 23 November 2010 23:47, Nicolas Betheuil
<[email protected]>  wrote:
Hi,

If I understand well the question, you have some posts under
/blog/wildlife/

For all nodes added or modified under this node you have an event that is 
published
You have on other hand an EventListener.

So you receive an Event from this eventListener on which you can call 
event.getPath()
This call will give you /blog/wildlife/2010/11/17/wolfs

On other hand you have a list of subscribers for example like that
/subscribers/tom/@prefix=/blog/wildlife
        +---/tim/@prefix=/blog/otherOne
        +---/titi/@prefix=/blog/wildlife/2010
Yes that's all correct.

By the event path, you can have all of those paths by the JCR API or by an 
regexp
/blog/wildlife/2010/11/17/
/blog/wildlife/2010/11/
/blog/wildlife/2010/
/blog/wildlife/
/blog/

So with an xpath like this it's ok ?
//*...@target='/blog/wildlife/2010/11/17/' or ... @target='/blog/wildlife/']

Sorry if i don't well understand the problem ...
Is it this ?
Yes. What I wanted to avoid was to traverse the parent relations to
the event node. I don't want to query for subscribers to the path
/blog/wildlife/2010/11/17/, then to the path /blog/wildlife/2010/11/,
then the path /blog/wildlife/2010/ etc, I just wanted a single xpath
or sql style query.

But it seems this is just not possible to avoid.


It will be a single xpath or sql style query. It will just use all event path possibilities with OR condition (/blog/, /blog/wildlife/, and so on up to your event path). We implemented this kind of handling for our event subscription service: subscribers are notified of content updates for nodes, they are subscribed to, including subnodes (the whole content tree underneath the node in question).
If someone will find a more efficient way, please, share it. Thank you!

Kind regards
Sergiy

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