这应该使您入门:

<class name="Question">
  ...
  <discriminator column="QuestionType"/>
  <subclass name="JobVelocityQuestion">
    <property name="InputtedAnswer"/>
  </subclass>
  <subclass name="NormalQuestion">
    <property name="InputtedAnswer"/>
    <subclass name="AsConsQuestion"/>
    ...
  </subclass>

我做了很多假设，但是应该可以.随时提出进一步的要求.

I made many assumptions, but it should work. Feel free to ask further.