HQL查询未执行

Question

I have 2 tables Asset and Asset_Dist_Types. Asset is parent and Asset_Dist_Types is a child table. Asset_Dist_Types is having 2 columns asset_id and lkp_dist_type where asset_id is the primary key in Asset table. In Asset_Dist_Types it is a many to many (one asset_id can have multiple lkp_dist_type entries.) In java, we have entity class only for Asset table. In that for Asset_Dist_Type, they have mentioned it as collection of elements. In Asset.java, entry for Asset_Dist_Type is as follows.

@CollectionOfElements
    @JoinTable(name = "ASSET_DIST_TYPE", joinColumns = @JoinColumn(name="ASSET_ID"))
    @Column(name="LKP_DIST_TYPE")
    private Set<Integer> distTypes = new LinkedHashSet<Integer>(0);

Now I would like to update Asset_Dist_Type table's lkp_dist_type column. I have list of asset id's. I have written following query to update it.

int hql = entityManager.createQuery(
     "update Asset a set a.distTypes = :distTypeParamId where a.assetId in (:assetIdParam)")
.setParameter("distTypeParamId", distTypeList)
.setParameter("assetIdParam", assetIdListToUpdateLOB)
.executeUpdate();

But this is throwing

javax.persistence.PersistenceException: 
org.hibernate.exception.GenericJDBCException: could not execute update query. 

Since I am new to hibernate I am not getting what is the solution. Can someone please help me?

Answer 1

Solved it by following a different way.. I got list of asset id's and list of distribution types. I iterated over the list of asset id's and for each asset id I added list of distribution types and flushed it. It is working now..!

After getting list of asset id's

    for(int i=0;i<assetIdListToUpdateLOB.size();i++){

                int assetId = assetIdListToUpdateLOB.get(i);
                System.out.println(assetId);
                List<Asset> assetDetailsList =  entityManager
                .createQuery(
                        "select distinct asset from Asset asset "
                                + "left join fetch asset.distTypes dt "
                                + "where asset.assetId = :assetIdParam")
                .setParameter("assetIdParam", assetId).getResultList();
                if(assetDetailsList.size()>0){
                this.asset = assetDetailsList.get(0);
                asset.getDistTypes().clear();
                asset.getDistTypes().addAll(selectedDistributionTypes);
                entityManager.flush();
}
}