function modules concerning batch classification

Hi experts,

I'm looking for 2 function modules to do the following:

- search for an object with specific characteristic values of a specific class, as you can do in Txn CL30N

- (if none found) classify an object (a batch) with specific values

As far as I can tell, the BAPI_CHARACT* functions don't do these two things, or do they?

I also know of function module CLAF_OBJECTS_OF_CLASS but this function module returns all objects, and in our implementation there will soon be thousands of objects. I need to be able to specify which objects I get, using specific values.

Thanks,

Rob