Danushka, we need this done before MARS. If there are any technical challenges in mapping this to qpid constructs, please let us know as soon as possible. --Srinath
On Mon, Feb 28, 2011 at 8:56 PM, Afkham Azeez <[email protected]> wrote: > During a discussion today, we (Sanjiva, Asanka, Srinath & I) thought that it > will be a good idea to use XPath-like syntax for selecting how to subscribe > to Registry resource paths. We could support only some simple scenarios, and > not the entire XPath syntax. Let me explain with an example. > The RegistrySynchronizer needs to be notified when deployable artifacts are > changed in the Registry. Let's say these artifacts are stored in > the _system/config/deployment/server/ path. Shown below is how the > HelloService.aar is stored. > /_system/config/deployment/server/service-groups/foo/bar/HelloService.aar > These are the different way in which we can subscribe to different parts of > this hierarchy. > 1. /_system/config/deployment/server > Selects server resource only [1] > 2. /_system/config/deployment/server/descendant::* > Selects descendants of server only, does not select server. Selected > elements wil be server, service-groups, foo, bar, and HelloService.aar [1] > 3. /_system/config/deployment/server/descendant-or-self::* > Selects server and descendants. Selected elements wil be server, > service-groups, foo, bar, and HelloService.aar [1] > So, this standard syntax allows us to simply select a node and its > descendants in different ways. > Thoughts welcome. > > [1] XPath reference: http://zvon.org/comp/r/tut-XPath_1.html > -- > Afkham Azeez > Senior Software Architect & Senior Manager; WSO2, Inc.; http://wso2.com, > > Member; Apache Software Foundation; http://www.apache.org/ > email: [email protected] cell: +94 77 3320919 > blog: http://blog.afkham.org > twitter: http://twitter.com/afkham_azeez > linked-in: http://lk.linkedin.com/in/afkhamazeez > > Lean . Enterprise . Middleware > > _______________________________________________ > Carbon-dev mailing list > [email protected] > http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev > > -- ============================ Srinath Perera, Ph.D. Senior Software Architect, WSO2 Inc. Visiting Lecturer, University of Moratuwa Member, Apache Software Foundation Research Scientist, Lanka Software Foundation Blog: http://srinathsview.blogspot.com/ _______________________________________________ Carbon-dev mailing list [email protected] http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
