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From Angela Schreiber <anch...@adobe.com>
Subject Re: Oak JCR Observation scalability aspects and concerns
Date Fri, 25 Oct 2013 13:14:45 GMT
hi bertrand

+1 for everything you said.

in general i think that we have split that section in the docu:

a) summary from OAK point of view (for those that know the very details)
b) summary from a JCR/Jackrabbit point of view. IMHO we can't expect
   our user community to understand how these subtle differences
   affect the behaviour of the JCR implementation and the event handling.
   a more comprehensive list would IMO make sense in order to allow
   users to get a feeling what they can expect.

in general i am sure michael has the best overview as he is
implementing observation in OAK and knows best which cases will
work and where the differences are. afaik he is also a sling
committer :-)

kind regards

On 10/25/13 2:37 PM, "Bertrand Delacretaz" <bdelacretaz@apache.org> wrote:

>Hi Angela,
>On Fri, Oct 25, 2013 at 11:21 AM, Angela Schreiber <anchela@adobe.com>
>> Bertrand wrote:
>>>The OSGi events that Sling rebroadcasts are less granular than JCR
>>>events, so this might not be a problem for that case.
>> do you know it or are you guessing?...
>I'm making an educated guess.
>To get hard facts, as you rightly ask for, we need a test suite that
>compares those OSGi events that Sling rebroadcasts, when doing various
>things on Jackrabbit and Oak. I don't think we'll ever get 100%
>identical observation behavior between Jackrabbit and Oak, so we'll
>need to define which differences are acceptable. To me the only sane
>way to do that is via a test suite.
>This can be added to the Sling it-jackrabbit-oak module [1] which
>makes it easy to run the exact same tests against Jackrabbit and Oak
>in an OSGi environment, but someone will need to write those tests. We
>might want to grant write access to both Sling + Oak committers to
>that module to make things easier.
>Thanks for the examples that you mention. I see the referenceable node
>issue at http://jackrabbit.apache.org/oak/docs/differences.html, but
>not the setPrimaryType one, could it be added?

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