public UnionStationImporter() {
String persistenceUnitName = "persistenceUnit";
EntityManagerFactory factory = Persistence.createEntityManagerFactory(persistenceUnitName);
this.entityManager = factory.createEntityManager();
UnionStationDaoImpl unionStationDaoImpl = new UnionStationDaoImpl();
unionStationDaoImpl.setEntityManager(this.entityManager);
this.unionStationDao = unionStationDaoImpl;
}