Re: Load data from database on startup

On 03/22/2013 01:06 AM, Kris wrote:
> Hi, I am trying to load some data for a ListBox on startup..
>
> I have this in the onModuleLoad method
>
> private final PrintProviderMockServiceAsync ppmockService =
> GWT.create(PrintProviderMockService.class);
> ....
> ....
>
> ppmockService.getPrintProviders(new
> AsyncCallback<ArrayList<PrintProviderMock>>() {
>
> @Override
> public void onSuccess(ArrayList<PrintProviderMock> arg0) {
> for (PrintProviderMock printProviderMock : arg0) {
> comboBox.addItem(printProviderMock.getName());
> }
> }
>
> @Override
> public void onFailure(Throwable t) {
> t.printStackTrace();
> }
> });
>
> Anyone got some good ideas how to load data into various widgets on
> startup ??
>
>
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>
I'm not entirely sure of what did you mean by load data into widgets at
startup, but in my case I use MVP framework do handle this kind of problem.

Where the presenter fetches data from service and assign values to the
view accordingly, is that what you want?

Example:

// Presenter code

@Override
protected void onReset() {
super.onReset();
// Add your RPC code here
ppmockService.getPrintProviders(new
AsyncCallback<ArrayList<PrintProviderMock>>() {

@Override
public void onSuccess(ArrayList<PrintProviderMock> arg0) {
for (PrintProviderMock printProviderMock : arg0) {
getView().addItemToComboList(printProviderMock.getName()); // notice this
}
}

@Override
public void onFailure(Throwable t) {
t.printStackTrace();
}
});

}

// Presenter code

You can use GWTP (GWT Platform for MVP)

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