Tools such as Hibernate and TopLink have made it much easier to map an object model into a relational database schema.

Hibernate和TopLink等工具大大简化了把对象模型映射到关系数据库模式的过程。

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Another limitation of local transactions is that you cannot use them with traditional object-relational mapping (ORM) frameworks such as Hibernate, TopLink, or OpenJPA.

本地事务的另一个限制是不能将它们与传统的关系对象映射(ORM)框架，比如Hibernate、TopLink或OpenJPA，一起使用。

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That's a lot of code to write and maintain, even though modern languages may provide some frameworks and code-gen tools to automate part of it, such as Toplink or Hibernate.

尽管先进的语言可能会提供一些框架和代码生成工具（如 Toplink 或 Hibernate）来实现部分工作的自动化，但仍然需要编写和维护大量代码。

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