faultWithPrimaryKeyValue, make sure it only returns a fault

Hi,
I'm using faultWithPrimaryKeyValue to access an eo in a sharedEC.
I was using it thinking it would return only faulted eos in the  
sharedEC, but after reading the java doc again, I think it may do a  
fetch to access the object (if not available in the fault).

So my issue is that I'm fetching object in the sharedEC with specific  
parameters, but when I request an object through  
faultWithPrimaryKeyValue, I can access object that doesn't conform to  
the sharedEC specific parameters.

For example, I can have an attribute "available" (boolean) on my  
object and only put the ones with available=true in my sharedEC. But  
I can still acces all the objet through my specific action using  
faultWithPrimaryKeyValue which is not what I want:)

Is there a way to request only a fault from a specific ec?
Or do I have to test for the specific attributes after I get the  
object? (If I can avoid this, it is really nice:))

Thanks

Xavier