plug-in de cache 快取区外挂程式
By the way, Apache OpenJPA does provide a Level2 cache plug-in with third party cache implementations available.
顺便说一下，针对第三方缓存实现，Apache OpenJPA确实提供了二级缓存插件。
Other functions that are standardized in JPA 2.0 are a level 2 cache plug-in, as well as query hints (also known as access intents).
JPA 2.0中标准化的其他功能包括二级缓存插件和查询提示(也称为访问意图)。
Timed-cache expiration plug-in: Richard Livsey's plug-in to handle timed expiration of cache fragments.
基于时间的缓存过期插件：Richard Livsey的一款插件，可用来处理基于时间的缓存分段到期失效。
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