Package com.hp.hpl.jena.sparql.algebra.op

Examples of com.hp.hpl.jena.sparql.algebra.op.OpBGP

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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);

        context.set(Service.queryTimeout, "10");
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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);

        context.set(Service.queryTimeout, "10,10000");
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    static private Op flush(BasicPattern bp, Op op)
    {
        if ( bp == null || bp.isEmpty() )
            return op ;
       
        OpBGP opBGP = new OpBGP(bp) ;
        op = OpSequence.create(op, opBGP) ;
        return op ;
    }
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    static boolean doFilterPlacement = true ;
   
    public static Op transform(ExprList exprs, BasicPattern bgp)
    {
        if ( ! doFilterPlacement )
            return OpFilter.filter(exprs, new OpBGP(bgp)) ;
       
        Op op = transformFilterBGP(exprs, new HashSet<Var>(), bgp) ;
        // Remaining filters? e.g. ones mentioning var s not used anywhere.
        op = buildFilter(exprs, op) ;
        return op ;
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        // Any filters that depend on no variables.
        Op op = insertAnyFilter(exprs, patternVarsScope, null) ;
       
        for ( Triple triple : pattern )
        {
            OpBGP opBGP = getBGP(op) ;
            if ( opBGP == null )
            {
                // Last thing was not a BGP (so it likely to be a filter)
                // Need to pass the results from that into the next triple.
                // Which is a join and sequence is a special case of join
                // which always evaluates by passing results of the early
                // part into the next element of the sequence.
               
                opBGP = new OpBGP() ;   
                op = OpSequence.create(op, opBGP) ;
            }
           
            opBGP.getPattern().add(triple) ;
            // Update variables in scope.
            VarUtils.addVarsFromTriple(patternVarsScope, triple) ;
           
            // Attempt to place any filters
            op = insertAnyFilter(exprs, patternVarsScope, op) ;
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        return current ;
    }
   
    protected Op compileBasicPattern(BasicPattern pattern)
    {
        return new OpBGP(pattern) ;
    }
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        Triple triple = new Triple(s, p ,o) ;
       
        // Evaluate as an algebra expression
        BasicPattern pattern = new BasicPattern() ;
        pattern.add(triple) ;
        Op op = new OpBGP(pattern) ;
       
//        // Make remote execution object.
//        System.err.println("GraphSPARQLService.graphBaseFind: Unimplemented : remote service execution") ;
//        //Plan plan = factory.create(op, getDataset(), BindingRoot.create(), null) ;
//
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    @Override
    public Op transform(OpQuadPattern quadPattern)
    {
        if ( quadPattern.isDefaultGraph() || quadPattern.isUnionGraph() )
        {
            OpBGP opBGP = new OpBGP(quadPattern.getBasicPattern()) ;
            return union(opBGP) ;
        }
       
        // Leave alone.
        // if ( quadPattern.isExplicitDefaultGraph() ) {}
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        // (filter (bgp ...))
        if ( OpBGP.isBGP(opFilter.getSubOp()) )
        {
            // Still may be a TDB graph in a non-TDB dataset (e.g. a named model)
            GraphTDB graph = (GraphTDB)execCxt.getActiveGraph() ;
            OpBGP opBGP = (OpBGP)opFilter.getSubOp() ;
            return executeBGP(graph, opBGP, input, opFilter.getExprs(), execCxt) ;
        }
       
        // (filter (quadpattern ...))
        if ( opFilter.getSubOp() instanceof OpQuadPattern )
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        Op op = null ;
        if ( exprs != null )
            op = TransformFilterPlacement.transform(exprs, pattern) ;
        else
            op = new OpBGP(pattern) ;
       
        return plainExecute(op, input, execCxt) ;
    }
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Related Classes of com.hp.hpl.jena.sparql.algebra.op.OpBGP

  • arq.examples.AlgebraExec
  • arq.examples.propertyfunction.labelSearch
  • com.hp.hpl.jena.sparql.algebra.AlgebraGenerator
  • com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterPlacement
  • com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterPlacement_Old
  • com.hp.hpl.jena.sparql.algebra.optimize.TransformFilterPlacementConservative
  • com.hp.hpl.jena.sparql.algebra.optimize.TransformMergeBGPs
  • com.hp.hpl.jena.sparql.algebra.optimize.TransformReorder
  • com.hp.hpl.jena.sparql.algebra.PropertyFunctionGenerator
  • com.hp.hpl.jena.sparql.algebra.TransformUnionQuery
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