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

Example 76 with Binding

use of org.apache.jena.sparql.engine.binding.Binding in project jena by apache.

the class QueryIterDistinct method getInputNext.

/** Return the binding from the input, hiding any variables to be ignored. */
private Binding getInputNext() {
    Binding b = getInput().next();
    // Hide unnamed and internal variables.
    b = new BindingProjectNamed(b);
    return b;
}

Example 77 with Binding

use of org.apache.jena.sparql.engine.binding.Binding in project jena by apache.

the class QueryIterDistinct method loadDataBag.

/** Load the data bag with. Filter incoming by the already seen in-memory elements */
private void loadDataBag() {
    ThresholdPolicy<Binding> policy = ThresholdPolicyFactory.policyFromContext(super.getExecContext().getContext());
    Comparator<Binding> comparator = new BindingComparator(new ArrayList<SortCondition>(), super.getExecContext());
    this.db = BagFactory.newDistinctBag(policy, SerializationFactoryFinder.bindingSerializationFactory(), comparator);
    for (; ; ) {
        Binding b = getInputNextUnseen();
        if (b == null)
            break;
        db.add(b);
    }
}

Example 78 with Binding

use of org.apache.jena.sparql.engine.binding.Binding in project jena by apache.

the class QueryIterMinus method moveToNextBinding.

@Override
protected final Binding moveToNextBinding() {
    if (!hasNextBinding())
        return null;
    Binding x = slot;
    slot = null;
    return x;
}

Example 79 with Binding

use of org.apache.jena.sparql.engine.binding.Binding in project jena by apache.

the class QueryIterPeek method moveToNextBinding.

@Override
protected Binding moveToNextBinding() {
    if (!hasNextBinding())
        throw new ARQInternalErrorException("No next binding");
    Binding b = binding;
    binding = null;
    return b;
}

Example 80 with Binding

use of org.apache.jena.sparql.engine.binding.Binding in project jena by apache.

the class TestCancelDistinct method testBaggedCancelPropagates.

/**
       test that of a QueryIterDistinct with an active databag is 
       cancelled, so is the iterator that it wraps.
    */
@Test
public void testBaggedCancelPropagates() {
    params.set(ARQ.spillToDiskThreshold, 0);
    QueryIteratorBase base = new MockQueryIterator(BindingFactory.create());
    QueryIterDistinct d = new QueryIterDistinct(base, c);
    assertNull(d.db);
    Binding b = d.next();
    assertNotNull(d.db);
    DistinctDataBag<Binding> db = d.db;
    assertFalse(base.getRequestingCancel());
    d.cancel();
    assertTrue(base.getRequestingCancel());
}