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

Example 11 with QueryIterator

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

the class OpExecutor method execute.

protected QueryIterator execute(OpTopN opTop, QueryIterator input) {
    QueryIterator qIter = null;
    // We leave this to do the strict case of (top (distinct ...))
    if (opTop.getSubOp() instanceof OpDistinct) {
        OpDistinct opDistinct = (OpDistinct) opTop.getSubOp();
        qIter = exec(opDistinct.getSubOp(), input);
        qIter = new QueryIterTopN(qIter, opTop.getConditions(), opTop.getLimit(), true, execCxt);
    } else {
        qIter = exec(opTop.getSubOp(), input);
        qIter = new QueryIterTopN(qIter, opTop.getConditions(), opTop.getLimit(), false, execCxt);
    }
    return qIter;
}

Example 12 with QueryIterator

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

the class OpExecutor method execute.

protected QueryIterator execute(OpAssign opAssign, QueryIterator input) {
    QueryIterator qIter = exec(opAssign.getSubOp(), input);
    qIter = new QueryIterAssign(qIter, opAssign.getVarExprList(), execCxt, false);
    return qIter;
}

Example 13 with QueryIterator

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

the class OpExecutor method execute.

protected QueryIterator execute(OpConditional opCondition, QueryIterator input) {
    QueryIterator left = exec(opCondition.getLeft(), input);
    QueryIterator qIter = new QueryIterOptionalIndex(left, opCondition.getRight(), execCxt);
    return qIter;
}

Example 14 with QueryIterator

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

the class OpExecutor method execute.

protected QueryIterator execute(OpReduced opReduced, QueryIterator input) {
    QueryIterator qIter = exec(opReduced.getSubOp(), input);
    qIter = new QueryIterReduced(qIter, execCxt);
    return qIter;
}

Example 15 with QueryIterator

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

the class OpExecutor method execute.

protected QueryIterator execute(OpOrder opOrder, QueryIterator input) {
    QueryIterator qIter = exec(opOrder.getSubOp(), input);
    qIter = new QueryIterSort(qIter, opOrder.getConditions(), execCxt);
    return qIter;
}