EntityManagerFactory injection

[Lucio Crusca]

Hello *,

this document

http://docs.oracle.com/javaee/5/tutorial/doc/bnbrm.html

states that "resource injection using annotations can only be used with 
classes that are managed by a Java EE compliant container [...] One exception 
is a request-scoped JavaServer Faces managed bean". 

Then it specifies that "You can still use resource injection in a web 
application that is not a JavaServer Faces application if you can do it in an 
object that is managed by the container. These objects include servlets and 
ServletContextListener objects"

My application is a Wicket app, not JSF, but I'm deploying in Tomee+. As I 
understand it, my container should be J2EE compliant, right? However, in:

@Stateless
public class MyPage extends org.apache.wicket.markup.html.WebPage
{
  @PersistenceUnit
  private EntityManagerFactory emf;
...

emf is always null.

Here is 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="mercatino-unit">
    <provider>org.hibernate.ejb.HibernatePersistence</provider>
    <jta-data-source>mercatinoDatabase</jta-data-source>
    <non-jta-data-source>mercatinoDatabaseUnmanaged</non-jta-data-source>

    <properties>
      <property name="hibernate.hbm2ddl.auto" value="create-drop"/>
      <property name="hibernate.archive.autodetection" value="class, hbm" />
      <property name="hibernate.show_sql" value="true" />
      <property 
name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
      <property 
name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
      <property 
name="hibernate.connection.url">jdbc:mysql://localhost:3306/mydb?zeroDateTimeBehavior=convertToNull&autoReconnect=true</property>
      <property name="hibernate.connection.username">myuser</property>
      <property name="hibernate.connection.password">secret</property>
      <property name="hibernate.c3p0.min_size" value="5" />
      <property name="hibernate.c3p0.max_size" value="20" />
      <property name="hibernate.c3p0.timeout" value="300" />
      <property name="hibernate.c3p0.max_statements" value="50" />
      <property name="hibernate.c3p0.idle_test_period" value="3000" />
    </properties>
  </persistence-unit>
</persistence>


What am I doing wrong?