SetContentBinding.java 文件源码

@Override
public void onChanged(SetChangeListener.Change<? extends E> change)
{
    final Set<T> set = setRef.get();
    if (set == null)
    {
        change.getSet().removeListener(this);
    }
    else
    {
        if (change.wasRemoved())
        {
            set.remove(converter.convert(change.getElementRemoved()));
        }
        else
        {
            set.add(converter.convert(change.getElementAdded()));
        }
    }
}