Re: RDF 'truthValue'

On 16.04.2009 16:27 Uhr, neil.stansbury () redbacksystems ! com wrote:
> Axel (or anyone else),
>
> Could you clarify the semantics of the "truthValue" argument in calls to
> nsIRDFDataSource?
>
> Are there any differences in its meaning in calls to hasAssertions() vs
> GetTargets() etc etc
>
> I had read it meant some kind of underlying permanency, but the
> somewhere else it meant a resource object could you clarify for me?

IIRC, and honestly, that's far fetched, as that stuff predates me, the 
truth value is there to overwrite an existing arch in a read-only 
datasource with a "non-existing arch" in another datasource, so that the 
combined compound datasource would act like that arch doesn't exist.

http://mxr.mozilla.org/mozilla1.9.1/source/rdf/base/src/nsCompositeDataSource.cpp#278 
is one of the fragments of implementing that.

Axel