So, in practical terms, can I call 'read' on the OntModel that is constructed over the UNION_GRAPH to get the rules into its clutches?
On Mon, Dec 13, 2010 at 11:32 AM, Ian Dickinson <[email protected]> wrote: > On 13/12/10 16:16, Benson Margulies wrote: >> Meanwhile, is there any advantage of reading the ontology tuples >> themselves into memory instead of into TDB? > Yes, for sure, if you're using the inference engine. The reasoners make > many, many checks into the model of the form "is triple <t> > present/absent?". If that check goes to TDB, at best you're hitting the > cache but at worst you'll be doing a disk operation. For a small model, > if I understand it correctly, TDB will have everything cached. But for a > larger model, you will likely pay a performance** penalty. > > Ian > > ** > http://www.reddit.com/r/programming/comments/90tge/hey_rprogramming_i_made_a_visualization_of_the/c0b1t0v > > > > -- > ____________________________________________________________ > Ian Dickinson Epimorphics Ltd, Bristol, UK > mailto:[email protected] http://www.epimorphics.com > cell: +44-7786-850536 landline: +44-1275-399069 > ------------------------------------------------------------ > Epimorphics Ltd. is a limited company registered in England > (no. 7016688). Registered address: Court Lodge, 105 High St, > Portishead, Bristol BS20 6PT, UK > >
