MVP best practices, how to expose a view to a presenter?

Hi guys,

I've been trying to find the best answer to the question above for a while now. Here is the problem:

* assume you have a view with textbox and a vertical panel. The textbox is used for searching, the vertical panel to display the found results. 

In order to decouple everything, we'll define 2 interfaces:

interface ISearchView {

  void populateResults (List<String> results);

  setPresenter (ISearchPresenter p);

}

interface ISearchPresenter {

  void doSearch (String query);

}

* using the code above, I can safely bind events in view, that dispatch business execution to a presenter (set via #setPresenter). Everything is very clean & organized.

However, when I'm implementing an Activity, here is how it would look like:

class SearchActivity extends AbstractActivity implements ISearchPresenter {

@Override

public void start(final AcceptsOneWidget panel, EventBus eventBus) {

           ISearchView view = clientFactory.getSearchView();

           view.setPresenter (this);

           panel.setWidget (view);

        }

        @Override

        public void onSearch (String query) {

             // Execute some sync/async call.

             clientFactory.searchService().search (query, .......);

             // HOW DO I SEND RESULTS BACK TO VIEW??

        }

}

I don't know how to access the view instance, in order to populate it with some results. One way, which I honestly think it's uberly wrong -- is to access it through clientFactory.getSearchView. But this basically forces me to have a singleton scope of that view. Not acceptable, imo.

The example http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html doesn't include this case (by coincidence or ...)

Thanks.

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