new ResultSetHandler<List<Comment>>() {
@Override
public List<Comment> handle(ResultSet rs) throws SQLException {
List<Comment> list = new ArrayList<Comment>();
while (rs.next()) {
Comment comment = new Comment();
comment.id = rs.getLong("Comment.id");
comment.content = rs.getString("content");
comment.postDate = rs.getTimestamp("postDate");
comment.author = new User();
comment.author.id = rs.getString("User.id");