Java ViewerSupport ComboViewer，如何绑定列表？

这个问题看起来很简单，但我不知道怎么做。 让我们假设以下简短片段：

List<Long> model = new ArrayList<Long>();
model.add(Long.valueOf(1d));
model.add(Long.valueOf(2d));
model.add(Long.valueOf(3d));
WritableList list = new WritableList(model, Long.class);

comboViewer = new ComboViewer(composite, SWT.READ_ONLY);
comboViewer.setContentProvider(new ObservableListContentProvider());
ViewerSupport.bind(comboViewer, list, ???);

我必须在ViewerSupport.bind中插入什么作为第三个参数，才能在ComboViewer中显示数字

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通常必须有BeanProperties.valuesnew String[]{name}之类的内容，但我希望使用Long的toString getter。

您可以通过以下方式绑定ComboViewer：

import org.eclipse.swt.widgets.Combo;

/*
 * model - your model object
 * modelAttrName - List<Long> attribute name, within your model
 * toModel, fromModel - update value strategies. can be jsut new UpdateValueStrategy() in 
 * the beginning
*/
public static Binding bindCombo(DataBindingContext bindingContext, Object model, String modelAttrName, UpdateValueStrategy toModel, UpdateValueStrategy fromModel) {

Combo combo = comboViewer.getCombo();

return dataBindingContext.bindValue(WidgetProperties.selection().observe(combo),
    BeansObservables.observeValue(model, modelAttrName), toModel, fromModel);

}

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作为modelAttrName，我必须提供什么？我想这就是问题所在，Long.class的属性就是toString方法。当然，我可以将Long子类化，并提供一个字符串getter和设置属性名，但我认为这种开销非常大。

class MyModel {

private List<Long> longs;

// provide getters and setters for logs class and fire property change events, using property change support

}

MyModel model = new MyModel();
bindCombo(new DataBindingContext(), model, "longs", new UpdateValueStrategy(), new UpdateValueStrategy());