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

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

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    }
   
    /** Do a node->node conversion of a BGP - return original BGP for "no change" */
    public static BasicPattern transform(NodeTransform nodeTransform, BasicPattern pattern) 
    {
        BasicPattern bgp2 = new BasicPattern() ;
        boolean changed = false ;
        for ( Triple triple : pattern )
        {
            Triple t2 = transform(nodeTransform, triple) ;
            bgp2.add(t2) ;
            if ( t2 != triple )
                changed = true ;
        }
        if ( ! changed )
            return pattern ;
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        for ( Triple triple : pattern )
        {
            OpQuadPattern opQuad = getQuads(op) ;
            if ( opQuad == null )
            {
                opQuad = new OpQuadPattern(graphNode, new BasicPattern()) ;   
                op = OpSequence.create(op, opQuad) ;
            }
           
            opQuad.getBasicPattern().add(triple) ;
            // Update variables in scope.
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    @BeforeClass public static void recordContextState() { value = ARQ.getContext().get(Service.serviceContext) ; }
    @AfterClass public static void restoreContextState() { ARQ.getContext().set(Service.serviceContext, value) ; }
   
    @Test
    public void testNumericTimeout() {
        BasicPattern basicPattern = new BasicPattern();
        basicPattern.add(Triple.ANY);
        Node serviceNode = NodeFactory.createURI(SERVICE);
        OpService opService = new OpService(serviceNode, new OpBGP(basicPattern), false);

        Context context = new Context();
        ARQ.setNormalMode(context);
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    }

    @Test
    public void testStringTimeout() {
        BasicPattern basicPattern = new BasicPattern();
        basicPattern.add(Triple.ANY);
        Node serviceNode = NodeFactory.createURI(SERVICE);
        OpService opService = new OpService(serviceNode, new OpBGP(basicPattern), false);

        Context context = new Context();
        ARQ.setNormalMode(context);
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        }
    }

    @Test
    public void testStringTimeout2() {
        BasicPattern basicPattern = new BasicPattern();
        basicPattern.add(Triple.ANY);
        Node serviceNode = NodeFactory.createURI(SERVICE);
        OpService opService = new OpService(serviceNode, new OpBGP(basicPattern), false);

        Context context = new Context();
        ARQ.setNormalMode(context);
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public class PathLib
{
    /** Convert any paths of exactly one predicate to a triple pattern */
    public static Op pathToTriples(PathBlock pattern)
    {
        BasicPattern bp = null ;
        Op op = null ;

        for ( TriplePath tp : pattern )
        {
            if ( tp.isTriple() )
            {
                if ( bp == null )
                    bp = new BasicPattern() ;
                bp.add(tp.asTriple()) ;
                continue ;
            }
            // Path form.
            op = flush(bp, op) ;
            bp = null ;
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        for ( Triple triple : pattern )
        {
            OpQuadPattern opQuad = getQuads(op) ;
            if ( opQuad == null )
            {
                opQuad = new OpQuadPattern(graphNode, new BasicPattern()) ;   
                op = OpSequence.create(op, opQuad) ;
            }
           
            opQuad.getBasicPattern().add(triple) ;
            // Update variables in scope.
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    }
   
    private static BasicPattern buildBGP(ItemList list)
    {
        // Skips the tag.
        BasicPattern triples = new BasicPattern() ;
        for ( int i = 1 ; i < list.size() ; i++ )
        {
            Item item = list.get(i) ;
            if ( ! item.isList() )
                BuilderLib.broken(item, "Not a triple structure") ;
            Triple t = BuilderGraph.buildTriple(item.getList()) ;
            triples.add(t) ;
        }
        return triples ;
    }
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        if ( fixedFilterPosition )
            // Illegal SPARQL
            return groupElt.getElements() ;
       
        List<Element> groupElts = new ArrayList<Element>() ;
        BasicPattern prev = null ;
        List<ElementFilter> filters = null ;
        PathBlock prev2 = null ;
       
        for (Element elt : groupElt.getElements() )
        {
            if ( elt instanceof ElementFilter )
            {
                ElementFilter f = (ElementFilter)elt ;
                if ( filters == null )
                    filters = new ArrayList<ElementFilter>() ;
                filters.add(f) ;
                // Collect filters but do not place them yet.
                continue ;
            }
           
            if ( elt instanceof ElementTriplesBlock )
            {
                if ( prev2 != null )
                    throw new ARQInternalErrorException("Mixed ElementTriplesBlock and ElementPathBlock (case 1)") ;
               
                ElementTriplesBlock etb = (ElementTriplesBlock)elt ;

                if ( prev != null )
                {
                    // Previous was an ElementTriplesBlock.
                    // Merge because they were adjacent in a group
                    // in syntax, so it must have been BGP, Filter, BGP.
                    // Or someone constructed a non-serializable query.
                    prev.addAll(etb.getPattern()) ;
                    continue ;
                }
                // New BGP.
                // Copy - so that any later mergings do not change the original query.
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    // ---- All the cases
   
    protected QueryIterator execute(OpBGP opBGP, QueryIterator input)
    {
        BasicPattern pattern = opBGP.getPattern() ;
        return StageBuilder.execute(pattern, input, execCxt) ;
    }
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Related Classes of com.hp.hpl.jena.sparql.core.BasicPattern

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  • arq.examples.propertyfunction.labelSearch
  • com.hp.hpl.jena.graph.Triple
  • com.hp.hpl.jena.sdb.graph.GraphSDB
  • com.hp.hpl.jena.sparql.algebra.AlgebraGenerator
  • com.hp.hpl.jena.sparql.algebra.op.OpBGP
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  • com.hp.hpl.jena.sparql.algebra.op.OpQuadBlock
  • com.hp.hpl.jena.sparql.algebra.op.OpTriple
  • com.hp.hpl.jena.sparql.algebra.OpAsQuery$Converter
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