How to pass parameter into Constructor View of UiBinder (via setInSlot) in GWT Platform?

It's very hard to find questions about GWTP (GWT Platform).

Ok, Here is my Story. I am using GWTP & eclipse to create the Presenter-View structure automatically.

Example, I created a TestPresenter in eclipse, & it created 3 files: TestPresenter.java, TestView.java, TestView.xml

In TestView.xml, i have:

  <g:RadioButton ui:field="firstRadioButton" value="false" text="1st" />       <g:RadioButton ui:field="secondRadioButton"  value="false" text="2nd" />       <g:RadioButton ui:field="bothRadioButton" value="true" text="Both" />   

Now I want to set the GroupName automatically for each TestView, so in TestView.java

public class TestView extends ViewImpl implements          TestPresenter.MyView {      private final Widget widget;      @UiField RadioButton firstRadioButton;      @UiField RadioButton secondRadioButton;      @UiField RadioButton bothRadioButton;      private String groupName;      @UiFactory      RadioButton makeRadioButton() {          return new RadioButton(groupName);      }      public interface Binder extends UiBinder<Widget, TestView> {      }        @Inject      public TestView(final Binder binder) {          widget = binder.createAndBindUi(this);      }        @Override      public Widget asWidget() {          return widget;      }        public RadioButton getFirstRadioButton() {          return firstRadioButton;      }        public RadioButton getSecondRadioButton() {          return secondRadioButton;      }        public RadioButton getBothRadioButton() {          return bothRadioButton;      }  }  

In TestPresenter.java,

public class TestPresenter extends          PresenterWidget<TestPresenter.MyView> {        public interface MyView extends View {            public RadioButton getFirstRadioButton();            public RadioButton getSecondRadioButton();            public RadioButton getBothRadioButton();      }  }  

Ok, finally I want to use many TestPresenter (by using setInLot) in MainPresenter.java

So, in MainPresenter.java, I have:

    public static final Object SLOT1=new Object();      public static final Object SLOT2=new Object();      public static final Object SLOT3=new Object();      public static final Object SLOT4=new Object();    //...... more lot        @Inject TestPresenter testPresenter1;             @Inject TestPresenter testPresenter2;        @Inject TestPresenter testPresenter3;        @Inject TestPresenter testPresenter4;  //.. more test presenter  

in MainView.java, i have setInSlot

@UiField HTMLPanel mainHtmlPanel;  @Override  public void setInSlot(Object slot, Widget content){        if(slot==TestPresenter.SLOT1){              mainHtmlPanel.clear();              if(content!=null){                  mainHtmlPanel.add(content);              }          }          else if(slot==TestPresenter.SLOT2){              mainHtmlPanel.clear();              if(content!=null){                  mainHtmlPanel.add(content);              }          }      //... more else if here  }  

Now, if i just do like that then I can not pass the groupName separately for each TestPresenter & that is not good. So I want to pass the groupName string for each TestPresenter so that each will have their own groupName. SOmething like this

    @Inject TestPresenter testPresenter1 ("group1");          @Inject TestPresenter testPresenter2 ("group2");        @Inject TestPresenter testPresenter3 ("group3");      @Inject TestPresenter testPresenter4 ("group4");  ...  

but I don't know how to it properly, so please tell me how to it properly in GWTP?

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