sparql - Delete RDF tuple using dotNetRDF -


this question has answer here:

i'd delete rdf tuple using dotnetrdf. here rdf file:

<rdf:rdf xml:base="http://www.example.org/destdetails#"           xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"           xmlns:xsd="http://www.w3.org/2001/xmlschema#"           xmlns:ns0="http://www.example.org/destdetails#"           xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">   <rdf:description rdf:about="&ns0;0165a659-54ea-4e80-bee7-9d3951d47ae3">     <ns0:id>0165a659-54ea-4e80-bee7-9d3951d47ae3</ns0:id>     <ns0:destination rdf:resource="&ns0;veles" />     <ns0:distrname>test test</ns0:distrname>     <ns0:hastimestart>17:00</ns0:hastimestart>     <ns0:hastimestop>17:55</ns0:hastimestop>     <ns0:moneyonedir>130 den.</ns0:moneyonedir>     <ns0:moneytwodir>---</ns0:moneytwodir>   </rdf:description> </rdf:rdf>

here code using:

        triplestore magacintorki = new triplestore();         //kreiranje na graf         graph rdf = new graph();         // create dataset , use named graph default graph         fileloader.load(rdf, rdfdatoteka, new rdfxmlparser());         rdf.baseuri = new uri("http://www.example.org/destdetails"); // remove name graph         // if graph has no name added default graph         magacintorki.add(rdf);         sparqlupdateparser parser = new sparqlupdateparser();         sparqlparameterizedstring cmdstring = new sparqlparameterizedstring();          cmdstring.commandtext = @"prefix  ns0: <http://www.example.org/destdetails#>"             + " prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>"             + " delete "             + "  {"             + " graph @graph {  ?dest ?p ?o"             + " ?dest ns0:nodeid @destid} }";          cmdstring.seturi("graph",rdf.baseuri);         cmdstring.setliteral("destid",destid);         sparqlupdatecommandset cmds = parser.parsefromstring(cmdstring);         leviathanupdateprocessor processor = new leviathanupdateprocessor(magacintorki);         processor.processcommandset(cmds);         rdf.savetofile(rdfdatoteka);

however nothing happening rdf file.

this code works fine me, because not asked delete triples using sparql

        graph rdf = new graph();         // create dataset , use named graph default graph         fileloader.load(rdf, rdfdatoteka, new rdfxmlparser());         rdf.baseuri = new uri("http://www.example.org/destdetails");         inode n = rdf.geturinode(new uri("http://www.example.org/destdetails#" + destid));         if (n != null)         {             rdf.retract(rdf.gettripleswithsubject(n));         }         rdf.savetofile(rdfdatoteka);

where destid subject of triples.

your query not match data why delete has no effect.

in data have ns0:id in delete try match against ns0:nodeid - therefore no data matched , nothing deleted.


Comments

Post a Comment

Popular posts from this blog

c# - Send Image in Json : 400 Bad request -

from android trying send image class of data, iis webservice. (c#) the problem 400 bad request . the image being encoded base64 . , placed json rest of class elements. my guess base64 not valid inside json. server not understand it. if set string "" , post accepted fine. so question is, how make base64 valid within json array? ( tried url.encode no success). or how should send image android webservice? gson gson = new gson(); string json = gson.tojson(record); // record has param { string base64photo } how big image? i'm pretty sure surpassing iis json size limit (default 4 mb). check http://geekswithblogs.net/frankw/archive/2008/08/05/how-to-configure-maxjsonlength-in-asp.net-ajax-applications.aspx or http://www.webtrenches.com/post.cfm/iis7-file-upload-size-limits good luck!
Read more

javascript - addthis share facebook and google+ url -

i attempting use addthis create simple url shares whichever current page user on when click share button. of right now, have twitter working. when user clicks, able see url populated in tweet box. when user clicks facebook or google+, url doesn't seem show in share box. <ul class="addthis_toolbox addthis_default_style "> <li><a class="addthis_button_facebook"><img src="/img/facebook-social.png" width="20" height="20" border="0" alt="share" /></a></li> <li><a class="addthis_button_twitter"><img src="/img/twitter-social.png" width="20" height="20" border="0" alt="share" /></a></li> <li><a class="addthis_button_google_plusone_share"><img src="/img/google-social.png" width="20" height="20" border="0" alt="s...
Read more

ios - Show keyboard with UITextField in the input accessory view -

i have buttona , when buttona clicked, want keyboard show uitextfield in inputaccessoryview. there way have keyboard show manually , set inputaccessoryview without having uitextfield initially? thanks. you cannot summon keyboard without object can become first responder. there 2 ways work around: subclass uiview , implement uikeyinput protocol in it. example: in .h file: @interface inputobject : uiview<uikeyinput> @property (nonatomic, copy) nsstring *text; @property (nonatomic, strong) uiview *inputaccessoryview; // must override inputaccessoryview , since it's readonly default @end in .m file, implement protocol: - (bool)canbecomefirstresponder { return yes; } - (bool)hastext { return [self.text length]; } - (void)inserttext:(nsstring *)text { nsstring *selftext = self.text ? self.text : @""; self.text = [selftext stringbyappendingstring:text]; [[nsnotificationcenter defaultcenter] postnotificationname:kinputobjec...
Read more