glassfish中EJB Container的pool和cache的区别

最新推荐文章于 2023-08-14 15:19:11 发布

findway

最新推荐文章于 2023-08-14 15:19:11 发布

阅读量618

点赞数

CC 4.0 BY-SA版权

文章标签： glassfish cache ejb bean session

本文链接：https://blog.youkuaiyun.com/findway/article/details/2247522

本文探讨了池化Bean(pooled bean)与缓存Bean(cached bean)之间的区别。池化Bean彼此等价且不可区分，而缓存Bean则包含会话状态，并与主键相关联。此外，实体Bean会在激活时从池中移除并加入缓存，在钝化时从缓存中移除并返回到池中。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

The difference between a pooled bean and a cached bean is that pooled beans are all equivalent and indistinguishable from one another. Cached beans, on the contrary, contain conversational state in the case of stateful session beans, and are associated with a primary key in the case of entity beans. Entity beans are removed from the pool and added to the cache on ejbActivate() and removed from the cache and added to the pool on ejbPassivate(). ejbActivate() is called by the container when a needed entity bean is not in the cache. ejbPassivate() is called by the container when the cache grows beyond its configured limits.