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From Thomas Müller <thomas.muel...@day.com>
Subject Re: [jr3] Node types
Date Fri, 19 Feb 2010 10:53:51 GMT

> Which makes observation listeners an integral part of the microkernel, btw.

The microkernel would only need to support one "callback object"
(listener is probably the wrong word, because it is also called for
read operations). This one would then call (and allow to register)
regular JCR observation listeners. It would also deal with / delegate
security, constraint checking like node type, and so on.

I'm not sure who should be able to write to the node type system. It
would be great if any session (with sufficient access rights) can,
because that would simplify clustering. The 'node type system' would
then just listen for changes on those nodes (and possibly revert those
changes if they don't make sense - rolling back that transaction).


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