Examples with Table org.apache.jena.sparql.algebra.Table used on opensource projects

Example 21 with Table

use of org.apache.jena.sparql.algebra.Table in project jena by apache.

the class EvaluatorDispatch method visit.

@Override
public void visit(OpUnion opUnion) {
    Table left = eval(opUnion.getLeft());
    Table right = eval(opUnion.getRight());
    Table table = evaluator.union(left, right);
    push(table);
}

Example 22 with Table

use of org.apache.jena.sparql.algebra.Table in project jena by apache.

the class EvaluatorDispatch method visit.

@Override
public void visit(OpService opService) {
    QueryIterator qIter = Service.exec(opService, ARQ.getContext());
    Table table = TableFactory.create(qIter);
    push(table);
}

Example 23 with Table

use of org.apache.jena.sparql.algebra.Table in project jena by apache.

the class EvaluatorDispatch method visit.

@Override
public void visit(OpSequence opSequence) {
    // Evaluation is as a sequence of joins.
    Table table = TableFactory.createUnit();
    for (Iterator<Op> iter = opSequence.iterator(); iter.hasNext(); ) {
        Op op = iter.next();
        Table eltTable = eval(op);
        table = evaluator.join(table, eltTable);
    }
    push(table);
}

Example 24 with Table

use of org.apache.jena.sparql.algebra.Table in project jena by apache.

the class EvaluatorDispatch method visit.

@Override
public void visit(OpSlice opSlice) {
    Table table = eval(opSlice.getSubOp());
    table = evaluator.slice(table, opSlice.getStart(), opSlice.getLength());
    push(table);
}

Example 25 with Table

use of org.apache.jena.sparql.algebra.Table in project jena by apache.

the class EvaluatorDispatch method visit.

@Override
public void visit(OpPropFunc opPropFunc) {
    Table table = eval(opPropFunc.getSubOp());
    table = evaluator.propertyFunction(table, opPropFunc.getProperty(), opPropFunc.getSubjectArgs(), opPropFunc.getObjectArgs());
    push(table);
}