@Override
public void meet(Projection node) throws OptimizationException {
super.meet(node);
// we need to check if we have inserted some value constant
// from a filter and if this is part of the projection. If yes
// we need to actually project it
if (!insertedValues.isEmpty()) {
node.replaceWith(
new ProjectionWithBindings(node.getArg(), node.getProjectionElemList(), insertedValues));
}
}
@Override
protected BindingSet convert(BindingSet sourceBindings) throws QueryEvaluationException {
return project(projection.getProjectionElemList(), sourceBindings, parentBindings);
}