休眠QuerySyntaxException

Question

我有两个类称为批处理中的地位与调用方法findByStudent当我有这个错误

Caused by: org.hibernate.hql.ast.QuerySyntaxException: unexpected end of subtree [from bean.Position p where :batch member of p.positionConstraint]

。如果有帮助，我也使用JPA。非常感谢

public class Position { 
@ElementCollection 
@LazyCollection(LazyCollectionOption.FALSE) 
@CollectionTable(name = "position_constraint") 
private List<Batch> positionConstraint; 
} 


public class Batch { 
private College college; 

private YearLevel yearLevel; 

@Override 
public List<Position> findByStudent(StudentInformation student) { 
Batch batch = new Batch(student.getCollege(), student.getYearLevel()); 

Query query = getEntityManager().createQuery(
"from Position p where :batch member of p.positionConstraint").setParameter("batch", batch); 
return query.getResultList(); 
} 

Answer 1

我想你的字符串中有错误。它应该是： "from Position p where :batch member of p.positionConstraint"

Answer 2

您的示例适用于Hibernate 3.6.8.Final和数据库H2 1.3.160的组合。另外随着JPA等效查询：

select from Position p where :batch member of p.positionConstraint 

根据关于Hibernate的版本使用，可以为你所面对这个错误：HHH-5209，这仍然是开放的。另外HHH-5173提供了一些额外的解释。