Hello everyone.
I dont understan how paging works, and i cant get a SimplePaging get
work with my example.
I have a CellTable whit my own AsyncDataProvider:
public class PersonDataProvider extends
AsyncDataProvider<PersonProxy> {
private final PersonRequestFactory requestFactory;
public PersonDataProvider(PersonRequestFactory requestFactory) {
super(null);
this.requestFactory = requestFactory;
}
@Override
protected void onRangeChanged(final HasData<PersonProxy> display) {
final Range range = display.getVisibleRange();
final int start = range.getStart();
/* not used insted use display.getVisibleRange().getLength() as
MAX
values*/
final int end = start + range.getLength();
requestFactory.personRequest().getAllPersons(start,display.getVisibleRange().getLength()).with("pet").fire(new
Receiver<List<PersonProxy>>(){
@Override
public void onSuccess(List<PersonProxy> response) {
/* what should i have here? */
updateRowData(start, response);
}
});
}
@Override
public void addDataDisplay(HasData<PersonProxy> display) {
super.addDataDisplay(display);
// Request the count anytime a view is added.
requestFactory.personRequest().countPersons().fire(new
Receiver<Long>(){
public void onSuccess(Long response) {
// the total count from server
updateRowCount(response.intValue(), true);
}
});
}
}
Then i got in my DataAccesObject:
public List<Person> getAllPersons(int start,int max){
Session session =
HibernateUtil.getSessionFactory().openSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
System.out.println(" limit "+start+",5");
@SuppressWarnings("unchecked")
List<Person> persons =
session.createCriteria(Person.class).addOrder(Order.desc("myAge")).setFirstResult(start).setMaxResults(max).list();
System.out.println("List size "+persons.size());
tx.commit();
return persons;
} catch (RuntimeException e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
}
But i cant it work the paging isn't show me the right berhaivor.
How can i use SimplePager with Hibernate on the server Side.
Thank you.
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