I am using Hibernate 4 and would like to simply list all rows of a table. All solutions I found suggest using something like \"from tablename\", but I would like to avoid hardco
//Hibernate Class
public class CommonDAO {
Session session = null;
Transaction transaction = null;
private Class clazz;
public CommonDAO(){ //constructor
session = HibernateUtil.getSessionFactory().openSession();
transaction = session.beginTransaction();
Type genericSuperclass = this.getClass().getGenericSuperclass();
if (genericSuperclass instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) genericSuperclass;
Type type = pt.getActualTypeArguments()[0];
clazz = (Class) type;
}
}
public T listById(Object id) {
T object = null;
try {
object = (T) session.get(clazz, (Serializable) id);
} catch (Exception e) {
e.printStackTrace();
}
return object;
}
}
//User Class
public class UserDAO extends CommonDAO { // Here UserMaster is pojo
public UserDAO() {
super();
}
public static void main(String ar[]) {
UserMaster user = new UserDAO().listById(1); // 1 is id
System.out.println(user.getUserName());
}
}