On Mon, Jul 2, 2012 at 3:22 PM, Joshua TAYLOR <joshuaaa...@gmail.com> wrote: > Thanks for the quick reply. I just grabbed the latest versions (and > posted my results with them before I saw this message). Is the syntax > of VALUES documented somewhere? The Working Draft I cited still uses > "BINDINGS", and I'm not sure where the working group discussion would > be (but I'll start grepping the Jena source, and will report back if > no one else does first).
I found some examples of queries using VALUES in some diffs shown in the jena commits mailing list [1]. It seems like the updated query should be PREFIX dc: <http://purl.org/dc/elements/1.1/> PREFIX : <http://example.org/book/> PREFIX ns: <http://example.org/ns#> SELECT ?book ?title ?price { ?book dc:title ?title ; ns:price ?price . } VALUES ?book { :book1 } and also that the general syntax is VALUES [var or list of vars] { [one or more term or list of terms] } and that if a single var appears, then single terms must appear in the body, and if a list of vars appears, then lists of terms must appear in the body (unsurprisingly). More importantly, the two can 't be mixed, so VALUES ?x { (:particular_x) } isn't OK, where ?x appears as a non list, but (:particular_x) is a one element list. I only stress this point because the example with BINDINGS from the working draft on the W3C site does exactly this: BINDINGS ?book { (:book1) } //JT [1] http://mail-archives.apache.org/mod_mbox/jena-commits/201205.mbox/%3c20120514150836.84ceb2388...@eris.apache.org%3E -- Joshua Taylor, http://www.cs.rpi.edu/~tayloj/
