From: Mauro Chiarugi - Dogma Systems <mauro.chiarugi_at_dogmasystems.it>
Date: Tue, 26 Aug 2008 15:22:45 +0200

Wim Verreycken ha scritto:
> OK.
>
> Seems you need to call the JPA entityManager.joinTransaction() for it to
> join JTA transaction if the EntityManager itself is defined outside the
> transaction.
>

Hi Wim,

thank you for your help. I've changed my code in this manner:
        <code>

        EntityManager entityManager =
javax.persistence.Persistence.createEntityManagerFactory("MyRentStorePU").createEntityManager();
       
         try {

             entityManager.joinTransaction(); // New line

             entityManager.getTransaction().begin();
             entityManager.persist(cliente);
             entityManager.getTransaction().commit();
       </code>

Is it correct?
I obtain the same exception :-(

In a previous email you suggest to change persistence.xml using JTA
instead JPA. I've noticed that I'm just using JTA. I post my
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="MyRentStorePU" transaction-type="JTA">

    <jta-data-source>jdbc/myrentstore</jta-data-source>
    <class>it.myrent.store.entity.Clienti</class>
    <class>it.myrent.store.entity.CreditCard</class>
    <class>it.myrent.store.entity.Ordini</class>
    <exclude-unlisted-classes>true</exclude-unlisted-classes>
    <properties>
      <property name="toplink.ddl-generation" value="create-tables"/>
      <property name="toplink.logging.level" value="FINE"/>
    </properties>

  </persistence-unit>
</persistence>

What should I do?

Thanks in advance,
Mauro Chiarugi

-- 
Mauro Chiarugi
Dogma Systems Srl:
http://www.dogmasystems.it
MyRent, Car Rental Software:
http://www.myrent.it
http://www.myrent.es
http://www.myrent.eu
Email:	mauro.chiarugi [at] dogmasystems.it
Tel :	+39 071 90 90 188
Fax :   +39 071 250 99 63