Thanks Mike! -mehul.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Michael Blakeley Sent: Thursday, May 26, 2011 11:34 PM To: General MarkLogic Developer Discussion Subject: Re: [MarkLogic Dev General] Semantic data and xquery help Mehul, I believe the problem is that you are setting a filter that doesn't match anything. Instead, use an empty sequence filter. That is, use () not ''. Here is how I would set this up: (: insert :) import module namespace sem="http://marklogic.com/semantic"; at "semantic.xqy"; let $ifo := 'is-friend-of' return ( sem:tuple-insert('a', $ifo, 'b', ()), sem:tuple-insert('b', $ifo, 'c', ()), sem:tuple-insert('c', $ifo, 'd', ()), sem:tuple-insert('c', $ifo, 'e', ()) ) => () (: foaf :) import module namespace sem="http://marklogic.com/semantic"; at "semantic.xqy"; xdmp:set($sem:DEBUG, true()), let $ifo := 'is-friend-of' let $m := map:map() let $do := sem:transitive-closure($m, 'b', 6, $ifo, true(), ()) return $m => <map:map xmlns:map="http://marklogic.com/xdmp/map"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns:xs="http://www.w3.org/2001/XMLSchema";> <map:entry key="e"> <map:value xsi:type="xs:integer">4</map:value> </map:entry> <map:entry key="c"> <map:value xsi:type="xs:integer">5</map:value> </map:entry> <map:entry key="d"> <map:value xsi:type="xs:integer">4</map:value> </map:entry> <map:entry key="b"> <map:value xsi:type="xs:integer">6</map:value> </map:entry> </map:map> -- Mike On 26 May 2011, at 10:04 , Shah, Mehul (LNG-NPV) wrote: > I am trying semantic example from > http://marklogic.github.com/semantic/#DOCUMENT_FORMAT and > http://marklogic.github.com/semantic/function-reference.html > > Does anyone have good sample data for this with N-triplets; and example > semantic queries (using sem: functions) working on that. > > > I manually created triplets like this. > <A> <is friend of> <B> > <B> <is friend of> <C> > <C> <is friend of> <D> > <C> <is friend of> <E> > > I tried to use following Xquery function: > xquery version "1.0-ml"; > > import module namespace sem="http://marklogic.com/semantic"; > at "semantic.xqy"; > > let $m := map:map() > sem:transitive-closure( $m, 'A', 3, 'is friend of', true(), "") > return $m > > Output (it simply reflects my input starting node and generations): > map:map( > <map:map xmlns:xs="http://www.w3.org/2001/XMLSchema"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xmlns:map="http://marklogic.com/xdmp/map";> > <map:entry key="A"> > <map:value xsi:type="xs:integer">5</map:value> > </map:entry> > </map:map>) > > > > I would like to get few working examples for FOAF(friend of friend) and some > joins. > > > Thanks, > Mehul. > > > > _______________________________________________ > General mailing list > [email protected] > http://developer.marklogic.com/mailman/listinfo/general > _______________________________________________ General mailing list [email protected] http://developer.marklogic.com/mailman/listinfo/general _______________________________________________ General mailing list [email protected] http://developer.marklogic.com/mailman/listinfo/general
