[OAI-implementers] LatestDatestamp?

Simeon Warner simeon@cs.cornell.edu
Mon, 5 Apr 2004 13:25:07 -0400 (EDT)

Hi Martin,

> I'm building a repository where updates are sent by ftp once every week
> (lets say monday). The records in this file have timestamps.

You probably cannot safely use the timestamps that come with the records
in this file. The record datestamps in the OAI record headers must be the
timestamps when the material becomes available (subject to chosen
granularity). Adding material with a datestamp before the current time
means that records can be missed in incremental harvests.

> Now, since
> the flow of records is quantified, I need a way of reporting the upper
> bound of the repository. A lastestDatestamp-tag would be nice.

It is not clear why you want to expose the latest datestamp. Harvesters
will usually harvest either all content, or content from the previous
incremental harvest datestamp onward (no until date). In both cases newly
added records will be successfully harvested.


> Any other ideas?
> regards,
>   Martin
> ____________________________________________________________
> Martin Malmsten, Systems Architect, Royal Library of Sweden
> http://www.libris.kb.se/