java - 从一个列表中选择另一个列表中的值 HQL

Question

我有一个具有多对多关系的类(class)。

Student class { 
@ManyToMany(fetch = FetchType.EAGER) 
private List<Route> routeList;
@ManyToOne
@JoinColumn(name = "idStreet", nullable = false)
private Street idStreet;    
}

Route class {
@ManyToMany(mappedBy = "routeList")
private List<Student> studentList;

@ManyToMany(fetch = FetchType.EAGER)
private List<Street> streetList;
}

Street class {
private long idStreet;
}

我需要使用 HQL 或函数接收与学生具有相同位置的所有路由。用sql不行。

Answer 1

解决方法:

Query query = entityManager.createQuery("from Route where :code in 
elements(streetList)");
query.setParameter("codigo", idStreet);