Hi everyone,
I'm currently trying to implement column sorting in a cell table for my
data, however my data doesn't sort and the sort arrow only moves when I
click on a row after clicking on a column header. Not sure what I did wrong
since most of what I have follows closely to the GWT tutorials and the GWT
show case example.
If anyone could give me some pointers that would be great :)
I'm thinking either I'm not properly triggering the sorting or the cell
table content isn't loading.
public class BrowseVendorsContent extends Content {
private static final String pageName = "Browse Vendors";
private static final String pageStub = "vendors";
private final BrowseVendorsServiceAsync browseVendorsService = GWT
.create(BrowseVendorsService.class);
public BrowseVendorsContent(Sneaky_Xpress module) {
super(module);
}
@Override
public String getPageName() {
return pageName;
}
@Override
public String getPageStub() {
return pageStub;
}
@Override
public void getAndChangeContent(final String input) {
browseVendorsService.browseVendorsServer(input,
new AsyncCallback>() {
public void onFailure(Throwable caught) {
module.addMessage(GENERIC_ERROR_MESSAGE);
}
public void onSuccess(List<Vendor> result) {
HTMLPanel content = new HTMLPanel(""); // The new
// content to
// return
// The sub-navigation bar
HTMLPanel list = new HTMLPanel("ul", "");
list.addStyleName("nav nav-tabs");
// The tabs in the sub-navigation bar
HTMLPanel listView = new HTMLPanel("li", "");
HTMLPanel mapView = new HTMLPanel("li", "");
// Links for the tabs
Anchor listViewLink = new Anchor("List View");
listViewLink.addClickHandler(new PageClickHandler(
BrowseVendorsContent.this, "list"));
listView.add(listViewLink);
Anchor mapViewLink = new Anchor("Map View");
mapViewLink.addClickHandler(new PageClickHandler(
BrowseVendorsContent.this, "map"));
mapView.add(mapViewLink);
// Create the sub-navigation bar
list.add(listView);
list.add(mapView);
content.add(list);
// Load the appropriate view
if (input.equals("map")) {
mapView.addStyleName("active");
listView.removeStyleName("active");
// Add the map etc.
} else {
// By default load the list view
listView.addStyleName("active");
mapView.removeStyleName("active");
// Add data table under List view
Widget table = displayDataInTable(result);
content.add(table);
}
module.changeContent(content);
}
});
}
public Widget displayDataInTable(List vendorList) {
// Create new cell table object
CellTable table = new CellTable();
// Configure table to display all results onto one page
table.setPageSize(vendorList.size());
// Configure to select a row vs one cell at a time
MultiSelectionModel<Vendor> selectionModel = new MultiSelectionModel<Vendor>();
table.setSelectionModel(selectionModel);
// Create a list data provider.
final ListDataProvider<Vendor> dataProvider = new ListDataProvider<Vendor>();
// Instantiate sort handler
ListHandler<Vendor> colSortHandler = new ListHandler<Vendor>(
vendorList);
// Add Key column and sort to column
TextColumn<Vendor> keyCol = new TextColumn<Vendor>() {
@Override
public String getValue(Vendor vendor) {
return vendor.getVendorId();
}
};
table.addColumn(keyCol, "Key");
keyCol.setSortable(true);
colSortHandler.setComparator(keyCol, new KeyComparator());
// Add Name column and sort to column
TextColumn<Vendor> nameCol = new TextColumn<Vendor>() {
@Override
public String getValue(Vendor vendor) {
return vendor.getName();
}
};
table.addColumn(nameCol, "Name");
nameCol.setSortable(true);
colSortHandler.setComparator(nameCol, new NameComparator());
// Add Location column
TextColumn<Vendor> locCol = new TextColumn<Vendor>() {
@Override
public String getValue(Vendor vendor) {
return vendor.getLocation();
}
};
table.addColumn(locCol, "Location");
locCol.setSortable(true);
colSortHandler.setComparator(locCol, new LocComparator());
// Add Description column
TextColumn<Vendor> desCol = new TextColumn<Vendor>() {
@Override
public String getValue(Vendor vendor) {
return vendor.getDescription();
}
};
table.addColumn(desCol, "Description");
desCol.setSortable(true);
colSortHandler.setComparator(desCol, new DesComparator());
// Add the cellList to the dataProvider.
dataProvider.addDataDisplay(table);
// Add col sort handler to table
table.addColumnSortHandler(colSortHandler);
table.getColumnSortList().push(keyCol);
// Set to query result
dataProvider.setList(vendorList);
// return table and display on page
return table;
}
}
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