Parsing identifiers, getting res tuples and resobs from them.
The DC-internal identifiers are, by default, formed as ivo://<authority-from-config>/<sourceRD path>/<id within path>.
Thus, all renderers of a given service have the same ivo-id, which is to say, they are all just capabilities on the same record.
returns an identifier from a res tuple.
returns a resob for an identifier.
returns a resob for a res tuple.
restup at least has to contain the sourceRD and resId fields.
The item that is being returned is either a service or a NonServiceResource (including DeletedResource). All of these have a getMeta method and should be able to return the standard DC metadata.
returns the record for identifier in the services table.