Package com.hp.hpl.jena.sparql.core

Examples of com.hp.hpl.jena.sparql.core.DatasetGraph

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        return sink.count() ;
    }
   
    private DatasetGraph parseToDataset(String string)
    {
        DatasetGraph dsg = DatasetLib.createDatasetGraphMem() ;
        StreamRDF dest = StreamRDFLib.dataset(dsg) ;
        parse(dest, string) ;
        return dsg ;
    }
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public class TestGraphOverDatasetMem extends AbstractTestGraphOverDataset
{
    @Override
    protected DatasetGraph createBaseDSG()
    {
        DatasetGraph dsg = DatasetGraphFactory.createMem() ;
        return new DatasetGraphViewGraphs(dsg) ;
    }
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{
    //TODO reenable when memory DSGs support quads and union.
    @Override
    protected Dataset createDataset()
    {
        DatasetGraph dsg = DatasetGraphFactory.createMem() ;
        dsg.addGraph(NodeFactory.createURI(graph1), GraphFactory.createDefaultGraph()) ;
        dsg.addGraph(NodeFactory.createURI(graph2), GraphFactory.createDefaultGraph()) ;
        dsg.addGraph(NodeFactory.createURI(graph3), GraphFactory.createDefaultGraph()) ;
        return DatasetFactory.create(dsg) ;
    }
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    /** Parse a file and return the quads in a dataset (in-memory) */
    public static DatasetGraph load(String filename, Lang lang, String baseURI)
    {
        if ( lang == null )
            lang = Lang.guess(filename, Lang.NQUADS) ;
        DatasetGraph dsg = DatasetLib.createDatasetGraphMem() ;
        read(filename, dsg, lang, baseURI) ;
        return dsg ;
    }
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    }
   
    /** Parse a string and return the quads in a dataset (in-memory) (convenience operation)*/
    public static DatasetGraph datasetFromString(String string, Lang language, String baseURI)
    {
        DatasetGraph dsg = DatasetLib.createDatasetGraphMem() ;
        Sink<Quad> sink = RiotLoader.datasetSink(dsg) ;
        Tokenizer tokenizer = TokenizerFactory.makeTokenizerString(string) ;

        LangRIOT parser = RiotReader.createParserQuads(tokenizer, language, baseURI, sink) ;
        try { 
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        }

        @Override
        protected QueryIterator nextStage(Binding binding)
        {
            DatasetGraph ds = super.getExecContext().getDataset() ;
            Node n = Substitute.substitute(node, binding) ;
            String uri = n.getURI();
            if ( ds.containsGraph(n) )
                return IterLib.result(binding, getExecContext()) ;
            // DO NOT LOOK AT THIS CODE
            Model m = FileManager.get().loadModel(uri) ;
            Graph g = m.getGraph() ;
            ds.addGraph(n, g) ;
            return IterLib.result(binding, getExecContext()) ;
        }
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        init() ;
    }
   
    private void init()
    {
        DatasetGraph dsg = (dataset == null) ? null : dataset.asDatasetGraph() ;
        context = Context.setupContext(context, dsg) ;
        if ( query != null )
            context.put(ARQConstants.sysCurrentQuery, query) ;
        setAnyTimeouts() ;
    }
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    public Plan getPlan()
    {
        if ( plan == null )
        {
            DatasetGraph dsg = prepareDataset(dataset, query, fileManager) ;
            Binding inputBinding = null ;
            if ( initialBinding != null )
                inputBinding = BindingUtils.asBinding(initialBinding) ;
            if ( inputBinding == null )
                inputBinding = BindingRoot.create() ;
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        String baseURI = query.getBaseURI() ;
        if ( baseURI == null )
            baseURI = IRIResolver.chooseBaseURI() ;
       
        DatasetGraph dsg =
            DatasetUtils.createDatasetGraph(query.getGraphURIs(),
                                            query.getNamedGraphURIs(),
                                            fileManager, baseURI ) ;
        return dsg ;
    }
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    }
   
    @Override
    protected QueryIterator nextStage(Binding outerBinding)
    {
        DatasetGraph ds = getExecContext().getDataset() ;
        // Is this closed?
        Iterator<Node> graphNameNodes = makeSources(ds, outerBinding, opGraph.getNode());
       
//        List<Node> x = Iter.toList(graphNameNodes) ;
//        graphNameNodes = x.iterator() ;
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Related Classes of com.hp.hpl.jena.sparql.core.DatasetGraph

  • arq.cmdline.ModDatasetGeneral
  • arq.examples.riot.ExRIOT_3
  • arq.sse_query
  • com.github.jsonldjava.jena.JenaRDF2JSONLD
  • com.hp.hpl.jena.query.QueryExecutionFactory
  • com.hp.hpl.jena.sdb.store.DatasetStore
  • com.hp.hpl.jena.sdb.test.misc.TestAssembler
  • com.hp.hpl.jena.sparql.algebra.op.OpFetch$QueryIterFetch
  • com.hp.hpl.jena.sparql.algebra.optimize.TestSemanticEquivalence
  • com.hp.hpl.jena.sparql.core.assembler.DatasetAssembler
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