Calendar c = new GregorianCalendar();
c.set(c.get(Calendar.YEAR) - 100, 0, 1, 0, 0, 0);
Expression qualifier3 = Expression
.fromString("artist.dateOfBirth < $date");
qualifier3 = qualifier3.expWithParameters(Collections.singletonMap(
"date", c.getTime()));
SelectQuery select3 = new SelectQuery(Painting.class, qualifier3);
List<Painting> paintings3 = objContext.performQuery(select3);
}