Java ComboBoxViewerCellEditor在对象列表中显示字符串

问题陈述：获取在另一个类中声明为集合的类的getter和setter

数据模型

下拉式

如果有办法强制元素成为地址对象或检索地址，那就太好了。任何建议都可以使用setLabelProvider调用来设置标签提供程序，以获取集合中每个对象的字符串。标签提供程序类似于：

class CollectionLabelProvider extends LabelProvider
{
  @Override
  public String getText(Object element)
  {
    // 'element' is an object from the collection

    CollectionEntry entry = (CollectionEntry)element;

    return entry.getString();
  }
}

---

将“CollectionEntry”替换为您收藏中的类。

Greg感谢您的回复。然而，我看到collectionEntry在hibernate包中，我可能可以通过编辑问题来更好地解释这种情况，因为它会抛出类似这样的错误com.example.e4.rcp.tables.OrgDetails无法转换为org.hibernate.engine.spi.collectionEntry

personTableViewer.setInput(//lsit of Persons from Database)
columViewer.setLabelProvider{...
...
}
DropDownInTable dot = new DropDownInTable(valcol.getViewer());
columnViewe.setEditingSupport(dot)

private ComboBoxViewerCellEditor cellEditor=null;
potected CellEditor getCellEditor(Object element) {
  //element here is person Object.I need setINput as getAddress().getCity()
  //if there was way to make element as address Object It would be great
    cellEditor.setInput(element.getAddress)
    return cellEditor;
}

class CollectionLabelProvider extends LabelProvider
{
  @Override
  public String getText(Object element)
  {
    // 'element' is an object from the collection

    CollectionEntry entry = (CollectionEntry)element;

    return entry.getString();
  }
}