Hi,
If the list of persistent classes are known *before* EntityManagerFactory
is created, then a possible
solution is as below:
public class TestDynamic extends TestCase {
public void testDynamic() {
// create a semicolon-separated list of persistent class
names
Class[] classes = { Unenhanced.class};
StringBuffer classNames = new StringBuffer();
for (Class c : classes) {
if (classNames.length() > 0)
classNames.append(";");
classNames.append(c.getName());
}
Map<String, String> properties = new HashMap<String, String>();
properties.put("openjpa.RuntimeUnenhancedClasses", "supported");
properties.put("openjpa.ConnectionUserName", "sa");
properties.put("openjpa.ConnectionPassword", "");
properties.put("openjpa.ConnectionURL",
"jdbc:mysql://localhost/test");
properties.put("openjpa.ConnectionDriverName",
"com.mysql.jdbc.Driver");
// specify list of class names as a property
properties.put("openjpa.MetaDataFactory",
"jpa(Types="+classNames+")");
// allow table definitions on-the-fly
properties.put("openjpa.jdbc.SynchronizeMappings",
"buildSchema(ForeignKeys=true)");
// now create factory
EntityManagerFactory factory =
Persistence.createEntityManagerFactory("test", properties);
// create a EM to trigger dynamic class management
EntityManager em = factory.createEntityManager();
em.close();
// hence things should behave normally
em = factory.createEntityManager();
Unenhanced pc = new Unenhanced();
em.getTransaction().begin();
em.persist(pc);
em.getTransaction().commit();
}
--
View this message in context:
http://www.nabble.com/JPA%3A-adding-entities-to-EntityManagerFactory-programmatically-tp17500835p17526048.html
Sent from the OpenJPA Users mailing list archive at Nabble.com.
