Apache OpenJPA for the persistence engine.
Apache OpenJPA,用作持久化引擎。
Once that was done, our persistence engine just worked.
这项工作完成之后,我们整个持久化引擎就可以正常工作了。
The joda-time-jpox project aims to add mappings necessary to persist Joda-Time objects using the DataNucleus persistence engine.
joda-time-jpox 项目的目标就是添加一些必需的映射,以使用 DataNucleus 持久化引擎持久化 Joda-Time 对象。
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