JPQL（JPA）如果列表有交集，则查找对象

Question

I have two Classes each of which hold a list of Labels. Now I want to find every object of ClassA that holds any item of the list of ClassB . Is this possible with JPQL? Or using a single query?

public class ClassA {
  private List<Label> labels;
}

public class ClassB {
  private List<Label> labels;
}

@Repository
public interface ClassARepository extends JpaRepository<ClassA, Long> {

  @Query("SELECT c FROM ClassA c WHERE :labels ____ c.labels")
  public List<ClassA> findAllByLabels(@Param("labels") List<Label> labels);

}

thanks

Answer 1

尝试以下（我没试过）：

SELECT DISTINCT(a) FROM ClassA a, ClassB b INNER JOIN a.labels labelA INNER JOIN b.labels labelB WHERE labelA = labelB