From the Fedora POV, it would also be good to know what use Fedora makes of the DC data stored in the object headers, and if it's really required. Ideally, there would only ever be the DC datastream (which could be treated special, from an internal management perspective, if absolutely necessary). The fact that the object header may say one thing, but the datastream another, makes me wonder if the door is open to all kinds of bugs, or at least end-user misunderstandings about the actual state of their object.
-- Scott On 04/03/2013 03:42 PM, [email protected] wrote: > This is a fault (one amongst many) that can be laid to the "specialness" of > the Fedora DC datastream, which is both a datastream like other datastreams > and yet also the privileged record of special information about the object to > which it belongs. > > Perhaps you can explain a little more about your intention? Are you using the > DC datastream as a container of description for the object? In any event, why > do you want to store this information with the filesystem-persisted object > serialization? Is it to make this information visible to other systems, or > perhaps for some other reason? > > --- > A. Soroka > The University of Virginia Library > > On Apr 3, 2013, at 4:06 PM, Tayal, Nikhil wrote: > >> Hi, >> >> I have been working on sending DC fields information from Fedora to low >> level storage for the Fedora Object as file system headers. >> I was able to get the information from DCFields for the DC datastream >> associated to the DigitalObject during creation of the Digital Object and >> send that as metadata in getMetadataForAboutToBeStoredObject method of >> FedoraHintsProvider Implementation that I did. >> >> The concern I have now is that if I update the DC datastream later on(say >> add a description in the xml), it’s only the Datastream that gets updated at >> the low level storage but the Object headers at the low level storage are >> still the same although the corresponding DC data has changed. >> >> Is there some way I can trigger an update of the associated Parent digital >> object too every time I update DC datastream? >> >> Or, should I look at fixing this issue in some other way? >> >> Thanks >> Nikhil Tayal >> Student Programmer >> UIUC Digital Library Research Lab >> >> ------------------------------------------------------------------------------ >> Minimize network downtime and maximize team effectiveness. >> Reduce network management and security costs.Learn how to hire >> the most talented Cisco Certified professionals. Visit the >> Employer Resources Portal >> http://www.cisco.com/web/learning/employer_resources/index.html_______________________________________________ >> Fedora-commons-developers mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/fedora-commons-developers > > > ------------------------------------------------------------------------------ > Minimize network downtime and maximize team effectiveness. > Reduce network management and security costs.Learn how to hire > the most talented Cisco Certified professionals. Visit the > Employer Resources Portal > http://www.cisco.com/web/learning/employer_resources/index.html > _______________________________________________ > Fedora-commons-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/fedora-commons-developers > -- Scott Prater Shared Development Group General Library System University of Wisconsin - Madison [email protected] 5-5415 ------------------------------------------------------------------------------ Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html _______________________________________________ Fedora-commons-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/fedora-commons-developers
