Cool! No Problem. Glad it helped. -David
On 12 June 2014 20:25, Marc Limotte <[email protected]> wrote: > 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 >> >> > > _______________________________________________ > General mailing list > [email protected] > http://developer.marklogic.com/mailman/listinfo/general > >
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