professor my spring not commiting form values to database like on adding a new user,

 do i need to do a entityManager.flush(); after merge in DAOimplementation?

@Override
@Transactional
public User saveUser(User user) {

return entityManager.merge(user);
}

my add user fileds are not showing up in my database and i dont get any errors after hitting the submit button it redirects to the redirected page. Is this a case where the queries are still not committed due to some JPA configuration? where do you think i could be going wrong as i have checked the repository code and i seem to do the code right...?
 

in this case since i am not getting any errors to debug what do you think will be the best way to go about debugging to see if my method has been implemented?

talisunep wrote:

in this case since i am not getting any errors to debug what do you think will be the best way to go about debugging to see if my method has been implemented?

LIke I said, first make sure the method is actually called. You can set a break point in the method then use Eclipse's debugger, or just add some logging statement in the method.

If the method is indeed called, then it must have something to do with transaction management. Since you do have the @Transactional annotation, so check a) if you imported the correct annotation (should be org.springframework.transaction.annotation.Transactional), and b) if you have <tx:annotation-driven /> in applicationContext.xml (without it @Transactional will be ignored).

professor i checked 

a.the correct annotation is imported... org.springframework.transaction.annotation.Transactional

b. also the 
<tx:annotation-driven /> in applicationContext.xml is present

c. i also did logging statement in the method on the controller/userDao/userDao Implementation
i did a

System.out.println(user.getFirstName()+"from jpa");

it prints out the correct input form userName in the console

@Override
@Transactional

public User saveUser(User user) {
System.out.println(user.getFirstName()+"from jpa");
return entityManager.merge(user);
}

i still cant figure out why it wont commit to the database..? Do you think that i am still missing some configuration in my SPRING set up?

the springmvc code also has the same issue..it reads the values from the database but it cant write(merge) values into the database like the example i state above..

yes it was me who had some issues with mac with sql workbench  for homework 1 and it got fixed on a re boot.. ive done the same (rebooted it 2 times) a couple of times but it wont allow me to add values to the database...

i reinstalled postgre on my mac.. re set up the database
i re imported springmvc validation and its commiting to the database.. it adds a new user it works however

but on my app  still dosnt allow merge to write to the database... is this related in anyway to the database entities or design? but even in this case it should give errors which it is not giving? all the set up pom.xml , web.xml , application context /servlet.xml are the same....