Hi
I've got an EJB:
|
| @Stateless
| @TransactionAttribute(TransactionAttributeType.SUPPORTS)
| public class AirportDaoBean implements AirportDaoLocal, AirportDaoRemote {
|
| @PersistenceContext
| private EntityManager manager;
|
| @Override
| public void createAirport(Airport airport) {
| manager.persist(airport);
| }
|
| @Override
| public Airport getAirportById(int id) {
| return manager.find(Airport.class, id);
| }
|
| @Override
| public List<Airport> getAll() {
| return manager.createQuery("from Airport order by
city.country.name").getResultList();
| }
|
| }
|
|
|
As you can see I configured it with SUPPORTS transaction attribute, so when
there is a transaction all methods in my bean will use it, when there is no
transaction context then bean wouldn't begin a new one. So my question is: why
i get the exception:
|
| Caused by: javax.persistence.TransactionRequiredException: EntityManager
must be access within a tra
| nsaction
| at
org.jboss.ejb3.entity.ManagedEntityManagerFactory.verifyInTx(ManagedEntityManagerFactory.
| java:150)
| at
org.jboss.ejb3.entity.TransactionScopedEntityManager.persist(TransactionScopedEntityManag
| er.java:174)
| at
master.airport.logic.impl.AirportDaoBean.createAirport(AirportDaoBean.java:24)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
| at
org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
| at
org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor
| .java:63)
| at
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at
org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedE
| ntityManagerIntercepto
|
|
Regards
Adam
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