Thanks, David. Your <res> trick helped. Apparently what I have is a JSON object. So I am able to use json:transform-from-json on it, and then asW3cDocument() on the result Item.
marc On Thu, Jun 12, 2014 at 1:11 PM, David Ennis <[email protected]> wrote: > HI. > > Whatever you are trying to return at this point is not a type that can be > understood (like node or map). > > Before returning it, you need to transform or serialize it. > > The quickest and dirtiest way to start to see what is going on is to > serialize it. > > Assume you have $var > > return $var > > Change that to > return <res>{$var}</res> > > Wrapping it in an XML element causes MarkLogic to serialize complex > objects. Then you can look and see what is being returned. > > We usually pack things into map:map and transform this to json for > transport. > > Kind Regards, > David > > > On 12 June 2014 18:45, Marc Limotte <[email protected]> wrote: > >> I'm trying this solution out now. It seems to run the query, but then I >> get this exception: >> >> Caused by: java.io.IOException: Nodes of type 'object' are not supported >> in XCC result sequences >> >> at >> com.marklogic.xcc.impl.AbstractResultSequence.nodeFactory(AbstractResultSequence.java:237) >> >> at >> com.marklogic.xcc.impl.AbstractResultSequence.instantiateResultItem(AbstractResultSequence.java:191) >> >> at >> com.marklogic.xcc.impl.CachedResultSequence.<init>(CachedResultSequence.java:56) >> >> at >> com.marklogic.xcc.impl.handlers.GoodQueryResponseHandler.handleResponse(GoodQueryResponseHandler.java:48) >> >> at >> com.marklogic.xcc.impl.handlers.EvalRequestController.serverDialog(EvalRequestController.java:83) >> >> at >> com.marklogic.xcc.impl.handlers.AbstractRequestController.runRequest(AbstractRequestController.java:86) >> >> ... >> >> >> What does this mean and any suggestions on how to fix it? >> >> >> thanks, >> >> marc >> >> >> >> >> On Thu, Jun 5, 2014 at 1:49 PM, Michael Blakeley <[email protected]> >> wrote: >> >>> You could call https://docs.marklogic.com/sem:sparql through an XCC >>> moduleInvoke, something like this: >>> >>> xquery version "1.0-ml"; >>> (: sparql.xqy :) >>> import module namespace sem="http://marklogic.com/semantics"; >>> at "/MarkLogic/semantics.xqy" ; >>> (: Add more variables to support bindings, etc. as needed :) >>> declare variable $SPARQL as xs:string external ; >>> sem:sparql($SPARQL) >>> (: end :) >>> >>> Then in Java: >>> >>> Session session = contentSource.newSession("mydatabase"); >>> Request request = session.newModuleInvoke("sparql.xqy"); >>> request.setNewStringVariable('SPARQL', mySparqlQuery); >>> // add more variables to support bindings, etc. as needed. >>> ResultSequence rs = session.submitRequest(request); >>> while (rs.hasNext()) { >>> ResultItem item = rs.next(); >>> // handle the item >>> } >>> session.close(); >>> >>> Wrap that up in a utility class, parameterize it as needed, and you'll >>> never have to think about it again. >>> >>> -- Mike >>> >>> On 5 Jun 2014, at 09:43 , Marc Limotte <[email protected]> wrote: >>> >>> > Hi. >>> > >>> > I'd like to run a SPARQL query from Java. I've found various bits of >>> documentation (including >>> http://developer.marklogic.com/learn/semantics-exercises/sparql-101). >>> But the docs all seem to cover running SPARQL from the console or maybe >>> REST or Xquery. Can someone point me in the right direction for running a >>> SPARQL query in Java? >>> > >>> > I don't need detailed instructions, just an overview or a pointer to >>> the right documentation. >>> > >>> > thanks for any help, >>> > Marc >>> > >>> > _______________________________________________ >>> > 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 >> >> > > _______________________________________________ > General mailing list > [email protected] > http://developer.marklogic.com/mailman/listinfo/general > >
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