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，ApacheOpenJPA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。
The Web server plug-in contains a built-in ESI processor which caches whole pages, as well as fragments, providing a higher cache hit ratio.
Web服务器插件包含内置ESI处理器，该处理器将缓存整个页以及必要的片段，具有较高的缓存命中率。
You don't need to create your own caching solution, though; you could use a pre-built Rails plug-in like Nick Kallen's cache money plug-in.
但您无需创建自己的缓存解决方案；您可以使用一个预置的Rails插件，比如nick Kallen的cachemoney插件。
You don't need to create your own caching solution, though; you could use a pre-built Rails plug-in like Nick Kallen's cache money plug-in.
但您无需创建自己的缓存解决方案；您可以使用一个预置的Rails插件，比如nick Kallen的cachemoney插件。
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