I have a webapp with a tons of spring mvc controllers. Those controllers interact with a DB with JPA, entities and repositories.
I would like to be sure that when a controller method is handled by spring mvc, all DB changes that append during that method are rollback if any exception is thrown during the process.
Here an example:
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>
Controller
@Controller
public class JpaTest {
@Autowired
GroupRepository groupRepository;
@RequestMapping(value = "/{langId}/jpatest", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
@ResponseBody
@Transactional
public String test() throws Exception {
Group group = new Group();
group.setName("jpaTest");
groupRepository.save(group);
throw new Exception("MY EXCEPTION ");
}
}
I expect the group is not added in the DB !
I hope the @Transactional would make it but not.
I added
<tx:annotation-driven transaction-manager="transactionManager" />
But no effect. Is there a way to do it simply ?
Or could I encapsulate my dispatcher Servlet to have kind of super transaction management, like we did with jeeves :
protected void doDispatch(final HttpServletRequest request, final HttpServletResponse response) throws Exception {
JeevesDispatcherServlet.super.doDispatch(request, response);
TransactionManager.runInTransaction("jeevesDispatchServlet", getWebApplicationContext(),
TransactionManager.TransactionRequirement.CREATE_ONLY_WHEN_NEEDED,
TransactionManager.CommitBehavior.ONLY_COMMIT_NEWLY_CREATED_TRANSACTIONS,
false, new TransactionTask<Void>() {
@Override
public Void doInTransaction(TransactionStatus transaction) throws Throwable {
JeevesDispatcherServlet.super.doDispatch(request, response);
return null;
}
});
}
