How to use EventBus for non-Presenter class in GWTP?

I am using GWTP platform & eClipse to build webapp. In Eclipse, when creating a Presenter, it will create 3 files (ex: SearchPresenter.java, SearchView.java, & SearchView.ui.xml):

public class SearchView extends ViewImpl implements SearchPresenter.MyView    public class SearchPresenter extends      Presenter<SearchPresenter.MyView, SearchPresenter.MyProxy>{      ....      private EventBus eventBus;      @Inject      public SearchPresenter(final EventBus eventBus, final MyView view) {           super(eventBus, view);          this.eventBus=eventBus;      }  }  

To use eventBus, we just simply use eclipse to create EventBus file, ex MyEvent.java, then we call eventBus in SearchPresenter by using this code:

MyEvent mEvent=new MyEvent();  SearchPresenter.this.eventBus.fireEvent(mEvent);  

now suppose I got a non-presenter class public class SearchDialogBox extends DialogBox, then my question is how can i use MyEvent in SearchDialogBox? How to getEventBus() in SearchDialogBox?

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