Do ranges require more FindQualifiers?

["Rogers, Tony" <Tony.Rogers@ca.com>]

Title: Message

It just struck me that if we will be storing ranges in the registry, and allowing them in queries, we'll need more FindQualifiers to deal with the possible range v range requests:

1. subset = the range in the find request is a subset of the range stored
   I need this resource between 9 and 10, it is available between 8 and 12 - match
2. superset = the range in the find request includes all of the range stored
   I need the resource range to fall between 10 and 100, it is 30 to 40 - match
3. intersect = the range in the find request overlaps with the range stored (perhaps by a minimum amount)
   I need at least one hour of this resource between 9 and 12, it is available 8 to 10 - match

Those are the obvious ones, and the last one requires an additional parameter (I wonder where we can put that extra parameter?).

 

What do you think?

 

Tony Rogers

Computer Associates

Senior Architect

tel +61 3 9727 8916

fax +61 3 9727 3491

tony.rogers@ca.com