@Test
public void selectParentChild_2() throws XPathException, SAXException, PermissionDeniedException {
NameTest test = new NameTest(Type.ELEMENT, new QName("SPEAKER", ""));
NodeSet speakers =
broker
.getStructuralIndex()
.findElementsByTagName(ElementValue.ELEMENT, docs, test.getName(), null);
Sequence largeSet =
executeQuery(broker, "//SPEECH/LINE[fn:contains(., 'love')]/ancestor::SPEECH", 187, null);
NodeSet result =
NodeSetHelper.selectParentChild(speakers, largeSet.toNodeSet(), NodeSet.DESCENDANT, -1);
assertEquals(187, result.getLength());
}
@Test
public void selectParentChild() throws XPathException, SAXException, PermissionDeniedException {
NameTest test = new NameTest(Type.ELEMENT, new QName("SPEAKER", ""));
NodeSet speakers =
broker
.getStructuralIndex()
.findElementsByTagName(ElementValue.ELEMENT, docs, test.getName(), null);
Sequence smallSet =
executeQuery(
broker, "//SPEECH/LINE[fn:contains(., 'perturbed spirit')]/ancestor::SPEECH", 1, null);
NodeSet result =
NodeSetHelper.selectParentChild(speakers, smallSet.toNodeSet(), NodeSet.DESCENDANT, -1);
assertEquals(1, result.getLength());
String value = serialize(broker, result.itemAt(0));
assertEquals(value, "<SPEAKER>HAMLET</SPEAKER>");
}
/**
* Check if any child nodes are found within this node set for a given set of potential ancestor
* nodes.
*
* <p>If mode is {@link #DESCENDANT}, the returned node set will contain all child nodes found in
* this node set for each parent node. If mode is {@link #ANCESTOR}, the returned set will contain
* those parent nodes, for which children have been found.
*
* @param al a node set containing potential parent nodes
* @param mode selection mode
* @param contextId used to track context nodes when evaluating predicate expressions. If
* contextId != {@link Expression#NO_CONTEXT_ID}, the current context will be added to each
* result of the of the selection.
*/
public NodeSet selectParentChild(NodeSet al, int mode, int contextId) {
return NodeSetHelper.selectParentChild(this, al, mode, contextId);
}