使用CriteriaBuilder(OpenJPA)與基類連接時轉換為子類 [英]Cast to subclass when joining with the base class using CriteriaBuilder (OpenJPA)
Hibernate 單表 inheritance - 基礎 class 作為屬性嵌套在子類中拋出 PropertyAccessException [英]Hibernate single table inheritance - base class nested as a property inside a subclass throws PropertyAccessException