q.declareParameters("com.google.appengine.api.datastore.Key blog, java.util.Date date");
q.setUnique(true);
q.setRange(0, 1);
// find blog entry
BlogEntry entryToPush = (BlogEntry) q.execute(sub.getBlogKey(),
sub.getLatestEntryNotifiedDate());
q.closeAll();
return entryToPush;