Handling of resourceless files

[teckart]

Right now metadata files without "Resource" ResourceProxy? are ignored. In some cases (e.g. intermediate level for structured resources, maybe also collections?) this leads to loss of relevant information.

[herste]

Not correct.
Metadata files that only have resources of the type metadata are ignored.
If they have no resources they are not ignored.

[dietuyt]

I think rendering such CMDIs only makes sense when there is a LandingPage resource proxy, so that the interested user can jump to the collection record in the original context. Displaying a CMDI record with only links to the CMDI xml files would confuse users.

[teckart]

As discussed the new policy is: files are accepted if they have:

1. data resources or
2. a landing page or
3. a search service (SRU/CQL) or
4. a search page or
5. that have none of the above but also lack any metadata links (as before)

(r3025)