@Override
public <T extends Identifiable> Stream<T> list(Class<T> clazz, String filter) {
final Predicate<Object> accept =
(Predicate<Object>) Tql.parse(filter).accept(new ObjectPredicateVisitor(clazz));
return source(clazz).filter(accept);
}
@Override
public <T extends Identifiable> boolean exist(Class<T> clazz, String filter) {
final Predicate<Object> accept =
(Predicate<Object>) Tql.parse(filter).accept(new ObjectPredicateVisitor(clazz));
return source(clazz).filter(accept).findAny().isPresent();
}