+ public static Node querySingleNode(Query query) {
+ NodeIterator nodeIterator;
+ try {
+ QueryResult queryResult = query.execute();
+ nodeIterator = queryResult.getNodes();
+ } catch (RepositoryException e) {
+ throw new ArgeoException("Cannot execute query " + query, e);
+ }
+ Node node;
+ if (nodeIterator.hasNext())
+ node = nodeIterator.nextNode();
+ else
+ return null;
+
+ if (nodeIterator.hasNext())
+ throw new ArgeoException("Query returned more than one node.");
+ return node;
+ }
+