/**
* <!ELEMENT and_selection (selection_metadata | and_selection | or_selection | not_selection)+>
*/
@Override
public void buildXPathExpression(
final Element selectionElement,
final StringBuilder expr,
final boolean not_switch,
final boolean use_switch) {
// assert: use_switch always true
if (!use_switch) {
throw new RuntimeException("error in not_selection; use_switch was switched off");
}
final List elems = selectionElement.elements();
final Element child = (Element) elems.get(0);
final String name = child.getName();
final ExpressionBuilder eb = QTIHelper.getExpressionBuilder(name);
eb.buildXPathExpression(child, expr, !not_switch, true);
}
