RequestBean.java 文件源码

public List<PlayerDetails> getPlayersByCity(String city) {
    logger.info("getPlayersByCity");
    List<Player> players = null;

    try {
        CriteriaQuery<Player> cq = cb.createQuery(Player.class);
        if (cq != null) {
            Root<Player> player = cq.from(Player.class);
            Join<Player, Team> team = player.join(Player_.teams);

            // Get MetaModel from Root
            //EntityType<Player> Player_ = player.getModel();

            // set the where clause
            cq.where(cb.equal(team.get(Team_.city), city));
            cq.select(player).distinct(true);
            TypedQuery<Player> q = em.createQuery(cq);
            players = q.getResultList();
        }
        return copyPlayersToDetails(players);
    } catch (Exception ex) {
        throw new EJBException(ex);
    }
}