How to create CellTable based on the response from the server - gwt

Question

I want to create a CellTable. But Columns of the celltable should be based on the response from the server. I'm getting the server response as List.
No of Columns = Size of the list.
CellTable column header should be the value from the server.
For ex. Server response: List<Contacts> contacts
Header should be contacts.getName().

Answer 1

I achieved it by the following code.
for (Contacts contact : contacts) {
final String city = contact.getCity();
final TextColumn<String> addressColumn = new TextColumn<String>() {
#Override
public String getValue(Contacts object) {
return city;
}
};
cellTable.addColumn(addressColumn, contact.getAddress());
}
Regards,
Gnik

Answer 2

Use CellList with an AsyncDataProvider:
//Create a cellList
#UiField
CellList<Contact> cellList;
//Creating dataProvider and completion of the cellList
#UiFactory
CellList<Contact> makeCellList() {
private AsyncDataProvider<Contact> provider = new AsyncDataProvider<Contact>() {
#Override
public void onRangeChanged(final HasData<Contact> display) {
rpcService.getContact(new AsyncCallback<List<Contact>>() {
#Override
public void onSuccess(List<Contact> result) {
display.setRowData(0, result);
}
#Override
public void onFailure(Exception ex) {
//TODO
}
});
}
};
//Adding the cellList to the provider in a constructor
provider.addDataDisplay(cellList);
Here's full example and docs.