GWT RPC and data translating to GXT Grid - gwt

Question

I am trying to translate data from server to client (GXT Grid).
On the server side I have a List with data and its ok.
Then I implement RPC methods and suppose that its ok too. Here is code:
GWTService
#RemoteServiceRelativePath("gwtservice")
public interface GWTService extends RemoteService {
public List<WebasystProductData> getWebasystProductData();
}
GWTServiceAsynch
public interface GWTServiceAsync {
public void getWebasystProductData(AsyncCallback<List<WebasystProductData>> callback);
}
GWTServiceImpl
public class GWTServiceImpl extends RemoteServiceServlet implements GWTService {
//private Map<String, WebasystProductData> productData;
public List<WebasystProductData> getWebasystProductData() {
WebasystConnection waConn = new WebasystConnection();
List<WebasystProductData> waPD = waConn.getWebasystProductData();
return waPD;
}
Then I implement proxy using my beanmodel, beanmodelreader, listloader, listore and grid.
...
rpc = RpcInit.initRpc();
RpcProxy<BeanModel> proxy = new RpcProxy<BeanModel>() {
#Override
public void load(Object loadConfig, AsyncCallback callback) {
rpc.getWebasystProductData(callback);
}
};
BeanModelReader reader = new BeanModelReader();
BaseListLoader loader = new BaseListLoader(proxy, reader);
ListStore<BeanModel> store = new ListStore<BeanModel>(loader);
List<ColumnConfig> col = new ArrayList<ColumnConfig>();
ColumnConfig column = new ColumnConfig();
column.setId("productIdWA");
column.setHeader("ProductID");
column.setWidth(50);
col.add(column);
column = new ColumnConfig();
column.setId("productNameWA");
column.setHeader("productName");
column.setWidth(120);
col.add(column);
column = new ColumnConfig();
column.setId("productPriceWA");
column.setHeader("productPrice");
column.setWidth(80);
col.add(column);
column = new ColumnConfig();
column.setId("categoryIdWA");
column.setHeader("categoryID");
column.setWidth(80);
column.setAlignment(HorizontalAlignment.RIGHT);
col.add(column);
When start my app - no data inside grid. Dont know whats the problem, no errors...
Suppose the problem is in client code

Answer 1

The Grid doesn't do an initial laod by its self. Did you call com.extjs.gxt.ui.client.data.Loader#load ?

Answer 2

RpcProxy<List<WebasystProductData>> proxy= new RpcProxy<List<WebasystProductData>>() {
#Override
protected void load(Object loadConfig,AsyncCallback<List<WebasystProductData>> callback) {
getWebasystProductData(config,callback);
}
};
BeanModelReader reader = new BeanModelReader();
ListLoader<ListLoadResult<ModelData>> loader = new BaseListLoader<ListLoadResult<ModelData>>(proxy, reader);
ListStore<BeanModel> store = new LisStore<BeanModel>(loader);
then just:
Grid<BeanModel> grid = new Grid<BeanModel>(store,column);
grid.addListener(Events.Attach, new Listener<GridEvent<BeanModel>>() {
public void handleEvent(GridEvent<BeanModel> be) {
loader.load();
}
});
Remember that your Pojo need to implements the BeanModelTag interface
and the
column = new ColumnConfig();
column.setId("XXX");
XXX need to be the same as your Pojo properties