Persistence. To provide object persistence, we extended the object model to permitthe definition of persistence attributes for objects. To the developer, makingan object persistent consists of defining those attributes that should be storedin the database. A compiler processes these definitions and generates a runtimelibrary that implements associative containers for each type of object.
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To provide object persistence, we extended the object model to permit the definition of persistence attributes for objects.
为了提供对象持久化，我们扩展了对象模型，允许为对象定义持久化属性。
The first one, which USES Container-Managed Persistence (CMP) to provide object-based access to a simple database table, is called PhoneBookEntryBean.
第一个类使用容器管理持久性(Container - Managed Persistence, CMP)来提供对简单数据库表phonebookentrybean的基于对象的访问。
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