/**
* Clears {@link #next} and tries to fetch the next Node instance. When this method returns {@link
* #next} refers to the next available node instance in this iterator. If {@link #next} is null
* when this method returns, then there are no more valid element in this iterator.
*/
private void fetchNext() {
// reset
next = null;
nextScore = 0;
while (next == null && rows.hasNext()) {
try {
QueryResultRow row = (QueryResultRow) rows.next();
nextId = row.getNodeId(null);
Item tmp = itemMgr.getItem(hierarchyMgr.getNodeEntry(nextId));
if (tmp.isNode()) {
next = (Node) tmp;
nextScore = row.getScore(null);
} else {
log.warn("Item with Id is not a Node: " + nextId);
// try next
invalid++;
pos++;
}
} catch (Exception e) {
log.warn("Exception retrieving Node with Id: " + nextId);
// try next
invalid++;
pos++;
}
}
pos++;
}
