public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
Sequence querySeq = getArgument(1).eval(contextSequence);
if (querySeq.isEmpty()) {
return Sequence.EMPTY_SEQUENCE;
}
String query = querySeq.itemAt(0).getStringValue();
String[] terms = getSearchTerms(query);
NodeSet hits[] = new NodeSet[terms.length];
NodeSet contextSet = contextSequence.toNodeSet();
for (int k = 0; k < terms.length; k++) {
hits[k] =
context
.getBroker()
.getTextEngine()
.getNodesContaining(
context,
contextSet.getDocumentSet(),
null,
NodeSet.DESCENDANT,
null,
terms[k],
DBBroker.MATCH_EXACT);
hits[k] = getArgument(0).eval(hits[k]).toNodeSet();
}
NodeSet result = hits[0];
for (int k = 1; k < hits.length; k++) {
if (hits[k] != null) result = result.deepIntersection(hits[k]);
}
if (LOG.isDebugEnabled()) LOG.debug("FOUND: " + result.getLength());
return result;
}
