求subclass、joined-subclass、unioned-subclass三种继承映射策略的解释
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xp9802
2011-12-02
求subclass、joined-subclass、unioned-subclass三种继承映射策略的解释，最好附上Demo，谢谢
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xp9802
2011-12-02
求subclass、joined-subclass、unioned-subclass三种继承映射策略的解释，最好附上Demo，谢谢
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