如何在JPA @Query注释中使用IN子句

Question

I have defined this method

 @Query("select cs from CenterStudy cs where cs.id in (?1)")
 @EntityGraph(value = "centerStudyAndNotifiedUsers", type = EntityGraph.EntityGraphType.LOAD)
 List<CenterStudy> findAllByIdsWithCenterAndUsers(List<Long> ids);

The list with the ids is not null, nor empty, but I always get the following exception:

java.lang.NullPointerException
    at org.hibernate.param.NamedParameterSpecification.bind(NamedParameterSpecification.java:67)
    at org.hibernate.loader.hql.QueryLoader.bindParameterValues(QueryLoader.java:613)
    at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1900)

I'm pretty sure it has something to do with the way the IN clause it's defined.

Any suggestions are well welcomed!

Answer 1

It's a common issue, a bug in Hibernate which you can find at :

NullPointer when combining JPQL query with in clause and @NamedEntityGraph where it says that:

When you combine a JPQL query with an in clause and a @NamedEntityGraph you get a NullPointerException in org.hibernate.param.NamedParameterSpecification.bind(NamedParameterSpecification.java:67) when you execute the query.

So you would have to remove the @EntityGraph annotation here in order to fix this problem.

Answer 2

public List<DealInfo> getDealInfos(List<String> dealIds) {
        String queryStr = "SELECT NEW com.admin.entity.DealInfo(deal.url, deal.url, deal.url, deal.url, deal.price, deal.value) " + "FROM Deal AS deal where deal.id in :inclList";
        TypedQuery<DealInfo> query = em.createQuery(queryStr, DealInfo.class);
        query.setParameter("inclList", dealIds);
        return query.getResultList();
    }

Works with JPA 2

Answer 3

I've faced this issue before. I fixed it using named parameteres instead of positional parameters. Example:

"Select p from product where p.id in(?)" -- not working

replaced by:

"Select p from product where p.id in(:idList)" -- OK