Im developing the paging grid using GXT 2.1.1, Im retrieving values from database tables using hibernate. My code is
`public class ExampleSampleTrip extends Composite
{
final GreetingServiceAsync service = GWT.create(GreetingService.class);
static class BeanModel implements ModelData
{
@Override
public <X> X get(String property)
{
// TODO Auto-generated method stub
return null;
}
@Override
public Map<String, Object> getProperties()
{
// TODO Auto-generated method stub
return null;
}
@Override
public Collection<String> getPropertyNames()
{
// TODO Auto-generated method stub
return null;
}
@Override
public <X> X remove(String property)
{
// TODO Auto-generated method stub
return null;
}
@Override
public <X> X set(String property, X value)
{
// TODO Auto-generated method stub
return null;
}
}
List<ColumnConfig> configs = null;
Grid<BeanModel> grid = null;
ContentPanel gridPanel = null;
// loader
PagingLoader<PagingLoadResult<ModelData>> loader = null;
PagingToolBar pagingToolBar = null;
ListStore<BeanModel> store = null;
public ExampleSampleTrip()
{
initComponents();
}
public List<ColumnConfig> getColumns()
{
if ( configs == null)
{
configs = new ArrayList<ColumnConfig>();
ColumnConfig column = new ColumnConfig();
column.setId("vehicle");
column.setHeader("Vehicle");
column.setWidth(100);
configs.add(column);
column = new ColumnConfig();
column.setId("orgin");
column.setHeader("Orgin");
column.setWidth(100);
configs.add(column);
column = new ColumnConfig();
column.setId("destination");
column.setHeader("Destination");
column.setWidth(100);
configs.add(column);
column = new ColumnConfig();
column.setId("route");
column.setHeader("Route");
column.setWidth(100);
configs.add(column);
column = new ColumnConfig();
column.setId("status");
column.setHeader("Status");
column.setWidth(100);
configs.add(column);
column = new ColumnConfig();
column.setId("currentlocation");
column.setHeader("Current Location");
column.setWidth(100);
configs.add(column);
ColumnModel cm = new ColumnModel(configs);
}
return configs;
}
public Grid<BeanModel> getGrid()
{
if (grid == null)
{
grid = new Grid<BeanModel>(getStore(), new ColumnModel(getColumns()));
grid.addListener(Events.Attach, new Listener<GridEvent<BeanModel>>() {
public void handleEvent(GridEvent<BeanModel> be)
{
PagingLoadConfig config = new BasePagingLoadConfig();
config.setLimit(50);
getLoader().load(config);
}
});
grid.setBorders(true);
}
return grid;
}
public ContentPanel getGridPanel()
{
if (gridPanel == null)
{
gridPanel = new ContentPanel();
gridPanel.setFrame(true);
gridPanel.setHeading("Paging Grid");
gridPanel.setLayout(new FitLayout());
gridPanel.add(getGrid());
gridPanel.setSize(600, 350);
gridPanel.setBottomComponent(getPagingToolBar());
}
return gridPanel;
}
public PagingLoader<PagingLoadResult<ModelData>> getLoader()
{
if (loader == null)
{
RpcProxy<List<Vehicle>> proxy=new RpcProxy<List<Vehicle>>(){
@Override
protected void load(Object loadConfig,
AsyncCallback<List<Vehicle>> callback) {
service.getVehicles(callback);
}
};
loader = new BasePagingLoader<PagingLoadResult<ModelData>>(proxy,new BeanModelReader());
loader.setRemoteSort(true);
loader.load();
}
return loader;
}
public PagingToolBar getPagingToolBar()
{
if (pagingToolBar == null)
{
pagingToolBar = new PagingToolBar(50);
pagingToolBar.bind(getLoader());
}
return pagingToolBar;
}
public ListStore<BeanModel> getStore()
{
if (store == null)
{
store = new ListStore<BeanModel>(getLoader());
}
return store;
}
private void initComponents()
{
initWidget(getGridPanel());
}
}
`
It is only displaying grid only, its not displaying the values.
my Implementation file is
`try {
// This step will read hibernate.cfg.xml and prepare hibernate for
// use
SessionFactory sessionFactory = new Configuration().configure()
.buildSessionFactory();
System.out.println("Within select");
session = sessionFactory.openSession();
List dataList = session.createQuery(" from Vehicle").list();
dataListArray = new ArrayList<Vehicle>(
dataList.size());
for (int i = 0; i < dataList.size(); i++) {
Vehicle datalst = (Vehicle) dataList
.get(i);
dataListArray.add(datalst);
}
//cutomerList.add((Customer) dataList);
System.out.println("size---->" + dataListArray.size());
return dataListArray;
} catch (Exception e) {
System.out.println(e.getMessage());
} finally {
session.flush();
session.close();
}`