With container Managed persistence (CMP) entity beans, the container generates the persistence code as well as managing the persistence logic.

使用容器管理的持久性(Container Managed Persistence, CMP)实体bean时，容器生成持久性代码并管理持久性逻辑。

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Container-managed persistence (CMP) entity beans handle all of the persistence semantics automatically, in the container.

容器管理的持久性(CMP)实体bean在容器中自动处理所有持久性语义。

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For example, if the mapping attribute of the DataSource object is not set, the data source might not act as the data source in the container-managed persistence (CMP).

例如，如果未设置DataSource对象的mapping属性，则数据源的行为方式不会与容器管理的持久性(CMP)中的数据源相同。

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