[英]Spring Data: Method with annotation @Query doesn't work as expected
我尝试用junit
测试覆盖我的Repository
代码,但是出乎意料的是,我面临以下问题:
@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());});
}
其中: makeAllUnactive()
方法只是一个@Query
:
@Modifying
@Query(value = "update SomeEntity e set v.active=0 where v.active =1")
public void makeAllUnactive();
并且: someEntityRepository
扩展了JpaRepository
此测试方法返回AssertionError
: Expected 0 but was 1.
这意味着makeAllUnactive
不会更改makeAllUnactive
的状态,也不会更改chanch,但是它们是不可见的。
您能否帮助我了解代码中的“差距”在哪里?
在查询中,您具有:
@Query(value = "update SomeEntity e set v.active=0 where v.active =1")
您应该将其更改为:
@Query(value = "update SomeEntity e set e.active=0 where e.active =1")
如果不起作用,请在运行SomeEntityRepository.save(entity);
之后尝试刷新SomeEntityRepository.save(entity);
编辑:
您应该在@Modifying
启用clearAutomatically
标志,以便EntityManager
@Modifying
更新。 但是请记住,它也可能导致丢失所有未刷新的更改。 有关更多阅读,请查看:
http://docs.spring.io/spring-data/jpa/docs/1.5.0.M1/reference/htmlsingle/#jpa.modifying-queries
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