Examples of QueryIterator

Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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    // Public interface is via QC.execute.
    static QueryIterator execute(Op op, QueryIterator qIter, ExecutionContext execCxt)
    {
        OpExecutor exec = createOpExecutor(execCxt) ;
        QueryIterator q = exec.executeOp(op, qIter) ;
        return q ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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    // ---- The recursive step.
   
    public QueryIterator executeOp(Op op, QueryIterator input)
    {
        level++ ;
        QueryIterator qIter = dispatcher.exec(op, input) ;
        // Intentionally not try/finally so exceptions leave some evidence around.
        level-- ;
        return qIter ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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        return execute(opTriple.asBGP(), input) ;
    }

    protected QueryIterator execute(OpGraph opGraph, QueryIterator input)
    {
        QueryIterator qIter = specialcase(opGraph.getNode(), opGraph.getSubOp(), input) ;
        if ( qIter != null )
            return qIter ;
        return new QueryIterGraph(input, opGraph, execCxt) ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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    }

    protected QueryIterator execute(OpProcedure opProc, QueryIterator input)
    {
        Procedure procedure = ProcEval.build(opProc, execCxt) ;
        QueryIterator qIter = executeOp(opProc.getSubOp(), input) ;
        // Delay until query starts executing.
        return new QueryIterProcedure(qIter, procedure, execCxt) ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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    }

    protected QueryIterator execute(OpPropFunc opPropFunc, QueryIterator input)
    {
        Procedure procedure = ProcEval.build(opPropFunc.getProperty(), opPropFunc.getSubjectArgs(),opPropFunc.getObjectArgs(), execCxt) ;
        QueryIterator qIter = executeOp(opPropFunc.getSubOp(), input) ;
        return new QueryIterProcedure(qIter, procedure, execCxt) ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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        if ( false )
        {
            // If needed, applies to OpDiff and OpLeftJoin as well.
            List<Binding> a = all(input) ;
            QueryIterator qIter1 = new QueryIterPlainWrapper(a.iterator(), execCxt) ;
            QueryIterator qIter2 = new QueryIterPlainWrapper(a.iterator(), execCxt) ;
           
            QueryIterator left = executeOp(opJoin.getLeft(), qIter1) ;
            QueryIterator right = executeOp(opJoin.getRight(), qIter2) ;
            QueryIterator qIter = new QueryIterJoin(left, right, execCxt) ;
            return qIter ;
        }
        QueryIterator left = executeOp(opJoin.getLeft(), input) ;
        QueryIterator right = executeOp(opJoin.getRight(), root()) ;
        QueryIterator qIter = new QueryIterJoin(left, right, execCxt) ;
        return qIter ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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    }

    // Pass iterator from one step directly into the next.
    protected QueryIterator execute(OpSequence opSequence, QueryIterator input)
    {
        QueryIterator qIter = input ;
       
        for ( Iterator<Op> iter = opSequence.iterator() ; iter.hasNext() ; )
        {
            Op sub = iter.next() ;
            qIter = executeOp(sub, qIter) ;
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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        return qIter ;
    }
   
    protected QueryIterator execute(OpLeftJoin opLeftJoin, QueryIterator input)
    {
        QueryIterator left = executeOp(opLeftJoin.getLeft(), input) ;
        QueryIterator right = executeOp(opLeftJoin.getRight(), root()) ;
        QueryIterator qIter = new QueryIterLeftJoin(left, right, opLeftJoin.getExprs(), execCxt) ;
        return qIter ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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        return qIter ;
    }

    protected QueryIterator execute(OpConditional opCondition, QueryIterator input)
    {
        QueryIterator left = executeOp(opCondition.getLeft(), input) ;
        QueryIterator qIter = new QueryIterOptionalIndex(left, opCondition.getRight(), execCxt) ;
        return qIter ;
    }
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Examples of com.hp.hpl.jena.sparql.engine.QueryIterator

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        return qIter ;
    }
   
    protected QueryIterator execute(OpDiff opDiff, QueryIterator input)
    {
        QueryIterator left = executeOp(opDiff.getLeft(), input) ;
        QueryIterator right = executeOp(opDiff.getRight(), root()) ;
        return new QueryIterDiff(left, right, execCxt) ;
    }
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