PlayerRankHistoryBean.java

@Stateless
public class PlayerRankHistoryBean {

    @PersistenceContext(unitName = "micro-PU")
    private EntityManager em;
    
    public void save(PlayerRankHistory rank){
        em.merge(rank);
    }
    
    public void remove(PlayerRankHistory rank){
        em.remove(findById(rank.getId()));
    }
    
    public PlayerRankHistory findById(Long id){
        return em.find(PlayerRankHistory.class, id);
    }
    
    public List<PlayerRankHistory> findAll(){
        return em.createQuery("SELECT r FROM PlayerRankHistory r").getResultList();
    }
    
}