尽管FetchType.EAGER和JOIN FETCH,我得到一个LazyInitalizationException,同时增加一些对象,以一个@ManyToMany通过收集JSF UISelectMany组件,如我的情况<p:selectManyMenu>.
的@Entity IdentUser,有FetchType.EAGER:
@Column(name = "EMPLOYERS")
@ManyToMany(fetch = FetchType.EAGER, cascade= CascadeType.ALL)
@JoinTable(name = "USER_COMPANY", joinColumns = { @JoinColumn(name = "USER_ID") }, inverseJoinColumns = { @JoinColumn(name = "COMPANY_ID") })
private Set<Company> employers = new HashSet<Company>();
的@Entity Company,有FetchType.EAGER:
@ManyToMany(mappedBy="employers", fetch=FetchType.EAGER)
private List<IdentUser> employee;
JPQL,包含JOIN FETCH:
public List<IdentUser> getAllUsers() {
return this.em.createQuery("from IdentUser u LEFT JOIN FETCH u.employers WHERE u.enabled …