Examples with QueryIterator org.apache.jena.sparql.engine.QueryIterator used on opensource projects

Example 16 with QueryIterator

use of org.apache.jena.sparql.engine.QueryIterator in project jena by apache.

the class OpExecutor method execute.

// ---- All the cases
protected QueryIterator execute(OpBGP opBGP, QueryIterator input) {
    BasicPattern pattern = opBGP.getPattern();
    QueryIterator qIter = stageGenerator.execute(pattern, input, execCxt);
    if (hideBNodeVars)
        qIter = new QueryIterDistinguishedVars(qIter, execCxt);
    return qIter;
}

Example 17 with QueryIterator

use of org.apache.jena.sparql.engine.QueryIterator in project jena by apache.

the class QueryIterRepeatApply method makeNextStage.

private QueryIterator makeNextStage() {
    count++;
    if (getInput() == null)
        return null;
    if (!getInput().hasNext()) {
        getInput().close();
        return null;
    }
    Binding binding = getInput().next();
    QueryIterator iter = nextStage(binding);
    return iter;
}

Example 18 with QueryIterator

use of org.apache.jena.sparql.engine.QueryIterator in project jena by apache.

the class ExecutionDispatch method visit.

@Override
public void visit(OpBGP opBGP) {
    QueryIterator input = pop();
    QueryIterator qIter = opExecutor.execute(opBGP, input);
    push(qIter);
}

Example 19 with QueryIterator

use of org.apache.jena.sparql.engine.QueryIterator in project jena by apache.

the class ExecutionDispatch method visit.

@Override
public void visit(OpTriple opTriple) {
    QueryIterator input = pop();
    QueryIterator qIter = opExecutor.execute(opTriple, input);
    push(qIter);
}

Example 20 with QueryIterator

use of org.apache.jena.sparql.engine.QueryIterator in project jena by apache.

the class ExecutionDispatch method visit.

@Override
public void visit(OpDistinct opDistinct) {
    QueryIterator input = pop();
    QueryIterator qIter = opExecutor.execute(opDistinct, input);
    push(qIter);
}