How can I get the EntityManager from JNDI?
2009/10/16 Roan Brasil Monteiro <roanbrasil_at_gmail.com>
> For example using CMT = container managed transaction or the best practice
> to avoid problems...
>
> 2009/10/16 Roan Brasil Monteiro <roanbrasil_at_gmail.com>
>
> Hey ,
>>
>> Thanks thats idea worked for me. You helped me a lot. I have another
>> question, what is the right way to do that or the best way to persist?
>>
>> 2009/10/16 Mitesh Meswani <Mitesh.Meswani_at_sun.com>
>>
>> Application managed entitymanagers need to be either created inside an
>>> active transaction or you need to explicitly call joinTransaction() to make
>>> it part of active transaction. Modify your code as follows
>>>
>>> EntityManager em = emf.createEntityManager(); //Either move this
>>> after utx.begin() below
>>> UserTransaction utx = getUtx();
>>> try {
>>> utx.begin();
>>> //Or call following
>>> em.joinTransaction();
>>>
>>> em.persist(p);
>>> utx.commit();
>>>
>>>
>>> Roan Brasil Monteiro wrote:
>>>
>>>> Dont persist and dont show error . The tables are created but when I
>>>> persist I cannot and got it. Bellow is my code. The table Place is created
>>>> but dont persist. Why?
>>>>
>>>> My class Test.java
>>>>
>>>> @Path("/test")
>>>> public class Test {
>>>>
>>>> @PersistenceUnit(unitName = "citespacePU")
>>>> EntityManagerFactory emf;
>>>> @GET
>>>> @Produces("text/plain")
>>>> public String getIt() throws NamingException {
>>>> StringBuilder strb = new StringBuilder();
>>>> Place p = new Place();
>>>> p.setName("Roan");
>>>>
>>>> EntityManager em = emf.createEntityManager();
>>>> UserTransaction utx = getUtx();
>>>> try {
>>>> utx.begin(); em.persist(p);
>>>> utx.commit();
>>>> } catch (Exception e) {
>>>> try {
>>>> utx.rollback();
>>>> } catch (SystemException se) {
>>>> throw new WebApplicationException(se);
>>>> }
>>>> throw new WebApplicationException(e);
>>>> } finally {
>>>> em.close();
>>>> }
>>>>
>>>>
>>>> persistence.xml
>>>>
>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>> <persistence version="1.0" xmlns="
>>>> http://java.sun.com/xml/ns/persistence" xmlns:xsi="
>>>> http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="
>>>> http://java.sun.com/xml/ns/persistence
>>>> http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
>>>> <persistence-unit name="citespacePU" transaction-type="JTA">
>>>> <provider>org.hibernate.ejb.HibernatePersistence</provider>
>>>> <jta-data-source>jdbc/TestDS</jta-data-source>
>>>> <properties> <property name="hibernate.hbm2ddl.auto"
>>>> value="update"/>
>>>> <property name="hibernate.connection.characterEncoding"
>>>> value="UTF-8"/>
>>>> </properties>
>>>> </persistence-unit>
>>>> </persistence>
>>>>
>>>>
>>>> --
>>>> Atenciosamente,
>>>>
>>>> Roan Brasil Monteiro
>>>> http://roanbrasil.wordpress.com/
>>>>
>>>
>>>
>>
>>
>> --
>> Atenciosamente,
>>
>> Roan Brasil Monteiro
>> http://roanbrasil.wordpress.com/
>>
>
>
>
> --
> Atenciosamente,
>
> Roan Brasil Monteiro
> http://roanbrasil.wordpress.com/
>
--
Atenciosamente,
Roan Brasil Monteiro
http://roanbrasil.wordpress.com/