Adding annotated classes to non-custom EntityManagerFactory

PedroSena · **Joined:** Thu Nov 20, 2008 5:25 pm **Posts:** 2

Hi Guys,

I'm working in an environment where each client has your own database schema, but all of them with the same tables.

To use JPA(w/ hibernate behind the scenes) I'm creating the EntityManagerFactory using Ejb3Configuration.

So far so good, but I have a lot of classes, all of them mapped in my persistence.xml file.

I would like to know if it is possible to use the addResource method(of Ejb3Configuration class) to include the mapped classes in my EntityManagerFactory.

I tried it, but without success.

I'm receiving a message that indicates that my classe is not mapped

Code:

Unknown entity: br.com.netsar.model.entity.MasterCountry

I believe that it is occurring because the Ejb3Configuration was not able to read my persistence.xml file (no exception nor logging), I saw that is possible to use orm.xml as configuration resource.

I would like to know if I can do it with persistence.xml.

Thanks for your time,

Pedro

PedroSena · **Joined:** Thu Nov 20, 2008 5:25 pm **Posts:** 2

I created, just for test, a hibernate.cfg.xml file and I made the mapping of my class

Code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC  
    "-//Hibernate/Hibernate Configuration DTD 3.0//EN"  
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
   <session-factory>
      <mapping class="br.com.netsar.model.entity.MasterCountry" />
   </session-factory>
</hibernate-configuration>

I added the this xml file to my Ejb3Configuration:

Code:

Properties prop = new Properties();
      prop.put("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
      prop.put("hibernate.connection.driver_class", "com.mysql.jdbc.Driver");
      prop.put("hibernate.connection.username", "root");
      prop.put("hibernate.connection.password", "");
      prop.put("hibernate.connection.url", "jdbc:mysql://localhost:3306/travelne_global");
      prop.put("hibernate.show_sql", "true");
      
      Ejb3Configuration conf = new Ejb3Configuration();
      
      EntityManagerFactory emf = conf.addProperties(prop).addResource("META-INF/hibernate.cfg.xml").buildEntityManagerFactory();

But i received the same error:

Code:

Exception in thread "main" java.lang.IllegalArgumentException: Unknown entity: br.com.netsar.model.entity.MasterCountry
   at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:186)
   at br.com.netsar.infra.repository.jpa.MultiDatabaseEntityManagerFactory.main(MultiDatabaseEntityManagerFactory.java:49)
Caused by: org.hibernate.MappingException: Unknown entity: br.com.netsar.model.entity.MasterCountry
   at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:580)
   at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:91)
   at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:905)
   at org.hibernate.impl.SessionImpl.get(SessionImpl.java:842)
   at org.hibernate.impl.SessionImpl.get(SessionImpl.java:835)
   at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:175)
   ... 1 more

What am I missing ?

Thanks