Question: harvesting managed vs. all resource records

Tony Linde Tony.Linde at leicester.ac.uk
Thu Mar 31 08:34:55 PST 2005


Ray Plante wrote:
> On Thu, 31 Mar 2005, John Good wrote:
> 
>>Does the Registry infrastructure keep track of the "point of origin"
>>(the Registry where the data was first entered)?  
> 
> 
> Yes.

Is this right - an individual record states the registry which manages it?

>>You could then
>>allow additional constraints that specified the point(s) of origin in
>>general ("give me all the records that you have that were originally
>>entered into the CDS Registry").  Your constraint is just a special
>>case of this.
> 
> 
> This becomes a little more difficult to do with the OAI interface.  

We could always drop OAI and use XQuery <ducks behind tall wall>

> Selective harvesting based on anything other than time must use these
> so-called sets, predefined names for subsets of the records.  We could
> define names for the different registries; 

Definitely not.

> however, this is awkward from a
> standards point of view: everytime a new registry appears we would need to
> define a name.  We could attempt to develop a scheme for doing this
> dynamically, but given the effort needed to support it, I would prefer to
> hear broader support for this feature first before we attempt to support
> it.  It's a good idea, and it's certainly something that can be easily
> added in a later version of the spec.
> 
> Note that this query can be much more easily done with the searchable 
> interface.  So we should recall that OAI is not meant for generalized 
> searching.  This query might be considered on the fence between a search 
> and a selective harvest.  

Agreed - this is a search. Harvesting should return only all or managed 
only.

> 
> cheers,
> Ray
> 



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