我有以下Hibernate代码,我认为应该正常工作,但它会引发错误:
org.springframework.web.util.NestedServletException:请求处理失败;嵌套异常是org.hibernate.exception.SQLGrammarException:错误:语法错误在“。”或附近。 位置:503
相关代码如下:
@Override
public List<RepositoryLink> getRepositoryLinks(final DugaUser user) {
Query query = sessionFactory.getCurrentSession()
.createQuery("from RepositoryLink link where :user in (link.dugaUsers)");
query.setParameter("user", user);
return query.list();
}
RepositoryLink
如下:
@Entity
@Table(name = "repository_links")
public class RepositoryLink {
@Id
@GeneratedValue
private Integer id;
@OneToOne
@JoinTable(name = "repository_links_github_repositories",
joinColumns = {@JoinColumn(name = "github_repository_id", referencedColumnName = "id")},
inverseJoinColumns = {@JoinColumn(name = "repository_link_id", referencedColumnName = "id")})
private GithubRepository githubRepository;
@OneToMany
@JoinTable(name = "repository_links_duga_users",
joinColumns = {@JoinColumn(name = "duga_user_id", referencedColumnName = "id")},
inverseJoinColumns = {@JoinColumn(name = "repository_link_id", referencedColumnName = "id")})
private List<DugaUser> dugaUsers = new ArrayList<>();
public Integer getId() {
return id;
}
public GithubRepository getGithubRepository() {
return githubRepository;
}
public void setGithubRepository(final GithubRepository githubRepository) {
this.githubRepository = githubRepository;
}
public List<DugaUser> getDugaUsers() {
return dugaUsers;
}
public void setDugaUsers(final List<DugaUser> dugaUsers) {
this.dugaUsers = dugaUsers;
}
}
我可能会使用一些连接,但我认为如果我能使in
语法工作会更好,为什么它不能像这样工作?
答案 0 :(得分:5)
我不能直接详细说明为什么这样做,而不是自己检查hibernate文档。 ;)
在您的查询中使用此项:IN elements(link.dugaUsers)