Spring数据：带有批注@Query的方法无法正常工作

Question

I try to cover my Repository code with junit tests but unexpectedly I am facing the following problem:

  @Test
    @Transactional
    public void shoudDeactivateAll(){

        /*get all Entities from DB*/
        List<SomeEntity> someEntities = someEntityRepository.findAll();

/*for each Entity set 1 for field active*/
        someEntities.forEach(entity -> 
        {entity.setActive(1);

/*save changes*/
        SomeEntityRepository.save(entity);});

        /*call service, which walks through the whole rows and updates "Active" field to 0.*/
        unActiveService.makeAllUnactive();

/*get all Entities again
        List<SomeEntity> someEntities = SomeEntityRepository.findAll();

/*check that all Entities now have active =0*/
        someEntities.forEach(entity -> {AssertEquals(0, entity.getActive());});
    } 

where: makeAllUnactive() method is just a @Query :

 @Modifying
            @Query(value = "update SomeEntity e set v.active=0 where v.active =1")
            public void makeAllUnactive();

And: someEntityRepository extends JpaRepository

This test method return AssertionError : Expected 0 but was 1.

it means that makeAllUnactive didn't change the status for Entitites OR did chanches, but they are invisible.

Could you please help me understand where is "gap" in my code?

Answer 1

in the query you have:

@Query(value = "update SomeEntity e set v.active=0 where v.active =1")

you should rather have changed it into:

@Query(value = "update SomeEntity e set e.active=0 where e.active =1")

if that does not work, try flushing after running SomeEntityRepository.save(entity);

EDIT:

You should enable clearAutomatically flag in the @Modifying , so that EntityManager will get updated. However keep it mind that it may also cause loosing all the non-flushed changes. For some more reading take a look:

http://docs.spring.io/spring-data/jpa/docs/1.5.0.M1/reference/htmlsingle/#jpa.modifying-queries