final TextColumn<PersonProxy> lastNameColumn = new TextColumn<PersonProxy>() {
@Override
public String getValue(PersonProxy contact) {
return contact.getLastName();
}
};
lastNameColumn.setSortable(true);
cellTable.addColumn(lastNameColumn,"Last Name");
AsyncDataProvider<PersonProxy> provider = new AsyncDataProvider<PersonProxy>() {
@Override
protected void onRangeChanged(final HasData<PersonProxy> display) {
final Range range = display.getVisibleRange();
final PersonRequest r2 = requestFactory.personRequest();
final ColumnSortList sortList = cellTable.getColumnSortList();
final List<SortConfigProxy> sorts = new ArrayList<SortConfigProxy>();
for(int i=0; i< sortList.size();i++){
if(sortList.get(i).getColumn().equals(lastNameColumn)){
SortConfigProxy p = r2.create(SortConfigProxy.class);
p.setColumn("lastName");
p.setOrder(sortList.get(i).isAscending() ? "asc" : "desc");
sorts.add(p);
}
}
r2.getAllPersons(sorts,range.getStart(),range.getLength()).with("pet").fire(new Receiver<List<PersonProxy>>(){
@Override
public void onSuccess(List<PersonProxy> response) {
updateRowData(range.getStart(), response);
}
});
}
@Override
public void addDataDisplay(HasData<PersonProxy> display) {
super.addDataDisplay(display);
requestFactory.personRequest().countPersons().fire(new Receiver<Long>(){
public void onSuccess(Long response) {
updateRowCount(response.intValue(), true);
}
});
}
};
provider.addDataDisplay(cellTable);
SortConfigProxy is a ValueProxy that send to the server side the sort column information.
On the server side.
public List<Person> getAllPersons(List<SortConfig> sortConfig,int start,int end){
Session session = HibernateUtil.getSessionFactory().openSession();
Transaction tx = null;
try {
tx = session.beginTransaction();
Criteria cri = session.createCriteria(Person.class).setFirstResult(start).setMaxResults(end);
if(sortConfig.size()>0){
System.out.println("order ->> "+sortConfig);
for(SortConfig sort:sortConfig){
if(sort.getOrder().equals("asc"))
cri.addOrder(Order.asc(sort.getColumn()));
else
cri.addOrder(Order.desc(sort.getColumn()));
}
}
@SuppressWarnings("unchecked")
List<Person> persons = cri.list();
tx.commit();
return persons;
} catch (RuntimeException e) {
if (tx != null)
tx.rollback();
throw e;
} finally {
session.close();
}
}
Example with Hibernate.
good luck
2012/2/21 kapricanon <kapricanon@gmail.com>
Hi
I am using the sample code example for ListDataProvider column sorting
(http://code.google.com/webtoolkit/doc/latest/
DevGuideUiCellTable.html#columnSorting)
to sort on a column in my application. Debugging the application I
can see the column is being sorted after I click on column header but
the display is never refreshed in the view.
Things to note is I am using paging for displaying my data as the data
can be quite huge.
Thanks
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ISC. Daniel Mauricio Patiño León.
Director ejecutivo
Liondev S.A. de C.V.
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