如果你想存储Java对象，尝试用的系列化和 BLOB存储而不是创建的OR映射的。当然，存储序列化的对象是不推荐。有很多的知名的情况下，是个头疼的那些类型的设计数据库的工作。

If you want to store a Java object, try with serialization and BLOB storing instead of creating an OR Mapping. Certainly storing serialized objects is not recommendable. There are a lot of well known cases where is a headache to work with those kind of designed databases.