/** @param args */
public static void main(String[] args) {
EntityManagerFactory emf = null;
EntityManager em = null;
Map<String, String> properties = new HashMap<String, String>();
properties.put(DDL_GENERATION, DROP_AND_CREATE);
properties.put(DDL_GENERATION_MODE, DDL_BOTH_GENERATION);
properties.put(TARGET_DATABASE, TargetDatabase.Oracle);
emf = PersistenceService.createEMF(properties, true, new EclipseLinkServiceFactory(), true);
em = emf.createEntityManager();
em.close();
emf.close();
}
/**
* @param entityName
* @param em
* @return number of rows deleted or -1 if delete failed
*/
private static int deleteAll(String entityName, EntityManager em) {
try {
return em.createQuery("DELETE FROM " + entityName).executeUpdate();
} catch (PersistenceException pe) {
return -1;
}
}
public static void deleteAll(EntityManager em) {
boolean begunTX = false;
if (!em.getTransaction().isActive()) {
em.getTransaction().begin();
begunTX = true;
}
deleteAll("Point", em);
deleteAll("CountryLanguage", em);
deleteAll("Language", em);
deleteAll("Feature", em);
deleteAll("TimeZone", em);
deleteAll("AdminDivision", em);
deleteAll("Country", em);
deleteAll("Continent", em);
em.flush();
if (begunTX) {
em.getTransaction().commit();
}
verifyDatabaseEmpty(em);
}