JGoodies JComboBox綁定

Question

如何將包含String項的JComboBox綁定到使用JGoodies的bean中的Integer值
我想在JComboBox名稱中顯示並將其綁定到該名稱的某個ID值。

Answer 1

使用MVP的架構，你將有演示SelectInList一個誰一直要列出對象的列表：例如：

class MyObject { 
    private Integer id; 
    private String name; 
    ... 
    //getters and setters 
} 

class MyView { 
    private MyPresentationModel; 
    private JComboBox myComboBox; 
    ... 
    private void buildComponents { 
     myComboBox = BasicComponentFactory.createComboBox(getPresentationModel().getMyObjectsSelectionInList(), new ListCellRenderer() { 

      protected DefaultListCellRenderer defaultRenderer = new DefaultListCellRenderer(); 

      @Override 
      public Component getListCellRendererComponent(JList list, Object value, 
        int index, boolean isSelected, boolean cellHasFocus) { 
       JLabel renderer = (JLabel) defaultRenderer 
         .getListCellRendererComponent(list, value, index, isSelected, 
          cellHasFocus); 

       renderer.setText(((MyObject) value).getName()); //this is point 
       return renderer; 
      } 
     }); 
    } 
} 

class MyPresentationModel extends com.jgoodies.binding.PresentationModel { 
    private SelectionInList myObjetcsSelectionInList; 
    private List<MyObject> list; 
    private MyModel myModel; 

    public MyPresentationModel(MyModel myModel) { 
     this.myModel = myModel; 
     list = //LOAD LIST 
    } 

    public SelectionInList getPeriodTypeSelectionInList() { 
     if (myObjetcsSelectionInList == null) { 
      myObjetcsSelectionInList = new SelectionInList(list.toArray(new MyObejct[list.size()]), getModel(MyModel.PROPERTY_MY_OBJECT)); 
      myObjetcsSelectionInList.setSelectionIndex(0); 
     } 
     return myObjetcsSelectionInList; 
    } 
    ... 
} 

class MyModel { 
    static public String PROPERTY_MY_OBJECT = "myObject"; 
    private MyObject myObject; 

    // getters and setters 
}