I think the problem is that the instance is not created by guice.
as Thomas mentioned the @Transactional only works on instances created
by guice.
From you callstack it looks like the instance could be created by jersey.
To clarify this could you paste the code of TestEndpoint.class
Thanks
On 10/18/2013 11:35 AM, Dirk Vranckaert wrote:
And here is the callstack: http://pastebin.com/raw.php?i=d6QVTA6B
:-)
Op vrijdag 18 oktober 2013 11:29:15 UTC+2 schreef Dirk Vranckaert:
Here is my entire callstack of all the threads, the second thread
(indicating running) is the one I'm working on. In the entire
callstack I don't see anything related to JpaLocalTxnInterceptor.
So my config is wrong at some point?
Op vrijdag 18 oktober 2013 11:18:13 UTC+2 schreef scl:
could you place a break point inside the persistUser() method
and check the callstack to see if there is a
JpaLocalTxnInterceptor.
This class is responsible for handling the @Transactional
annotation.
On 10/18/2013 11:06 AM, Dirk Vranckaert wrote:
I'm building a backend application for one of my Android
applications.
My setup is Hibernate as ORM, MySQL as DB, Guice as DI and
Guice-Persist for the link between ORM and DI.
My webservice-endpoint class looks like this:
@Path("test")
public class TestEndpoint {
@Inject
private UserDao userDao;
@GET
@Path("persistUser")
@Produces(MediaType.TEXT_PLAIN)
@Transactional
public String persistUser() {
User user = new User();
user.setEmail("[email protected]");
user.setFirstName("FirstName");
user.setLastName("LastName");
user = userDao.persist(user);
return "ok";
}
}
When I manually manage the transaction it works and my entity
is persisted:
@Path("test")
public class TestEndpoint {
@Inject
private UserDao userDao;
@Inject
private Provider<EntityManager> em;
@GET
@Path("persistUser")
@Produces(MediaType.TEXT_PLAIN)
public String persistUser() {
((HibernateEntityManager)em.get()).getSession().getTransaction().begin();
User user = new User();
user.setEmail("[email protected]");
user.setFirstName("FirstName");
user.setLastName("LastName");
user = userDao.persist(user);
((HibernateEntityManager)em.get()).getSession().getTransaction().commit();
return "ok";
}
}
My UseDaoImpl that is injected via UserDao looks like this:
public abstract class UserDaoImpl {
@Inject
private Provider<EntityManager> em;
public EntityManager getEntityManager() {
return em.get();
}
public User persist(User instance) {
getEntityManager().persist(instance);
return instance;
}
public User findById(String id) {
return getEntityManager().find(User.class, id);
}
}
My GuiceContextListener looks like this:
public class GuiceContextListener extends
GuiceServletContextListener {
@Override
protected Injector getInjector() {
Injector injector = Guice.createInjector(
new DatabaseModule(),
new GuiceDaoModule(),
new GuiceServiceModule(),
new ServletModule()
);
return injector;
}
}
The DatabaseModule:
public class DatabaseModule extends AbstractModule {
private static final String JPA_UNIT = "myDB";
@Override
protected void configure() {
install(new JpaPersistModule(JPA_UNIT));
}
}
The GuiceDaoModule:
public class GuiceDaoModule implements Module {
@Override
public void configure(Binder binder) {
binder.bind(UserDao.class).to(UserDaoImpl.class);
}
}
And this is my web.xml configuration:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee";
<http://java.sun.com/xml/ns/javaee>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
<http://www.w3.org/2001/XMLSchema-instance>
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
<http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_2_5.xsd>
version="2.5">
<display-name>MyApp</display-name>
<listener>
<listener-class>eu.vranckaert.test.guice.GuiceContextListener</listener-class>
</listener>
<!-- GUICE -->
<filter>
<filter-name>guiceFilter</filter-name>
<filter-class>com.google.inject.servlet.GuiceFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>guiceFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
When I do findById(..) I can also retrieve my record, so my
DB connection is working, I'm just not able to use the
@Transactional annotation...
So I found something about wrong scope of my EntityManager,
but I have no clue how I can change the entity manager's scope...
You guys have any idea what is wrong with my setup that the
annotation does not work?
Dirk
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