The catalog cache is used to store table descriptor information that is used when the tables, views, or alias have been referenced in previous statements.
目录缓存器用于存储表描述符信息，而在先前的语句中引用表、视图或别名时将使用该信息。
The invalidation of the fragment cache can be accomplished by specifying the expiration time in the deployment descriptor.
可以通过在部署描述符中指定过期实现片断缓存的失效。
Listing 3 shows a deployment descriptor (portlet.xml) of a standard portlet which publishes the cache information.
清单3显示了一个发布缓存信息的标准portlet的部署描述符(portlet . xml)。
Legacy portlets do not contribute to the cache information for remote caches either through the deployment descriptor or at render time.
遗留Portlet既不通过部署描述符提供缓存信息，也在不呈现时提供远程缓存信息。
In summary, both environments let you specify cache Settings within the portlet deployment descriptor.
总之，两种环境都允许您在Portlet部署描述符中指定缓存设置。
The cache is enabled and disabled using simple XML deployment descriptor files and using the WebSphere Application Server administrative console.
通过使用简单的XML部署描述符文件和通过使用WebSphereApplicationServer管理控制台均可以启用和禁用该缓存功能。
To make use of expiration-based caching, portlets must define the duration of the expiration cache in the deployment descriptor portlet.xml (for standardized portlet following JSR 168 specification).
为了使用基于过期的缓存，portlet必须在部署描述符portlet . xml(对于符合JSR 168规范的标准化portlet)中定义过期缓存的持续时间。
To make use of expiration-based caching, portlets must define the duration of the expiration cache in the deployment descriptor portlet.xml (for standardized portlet following JSR 168 specification).
为了使用基于过期的缓存，portlet必须在部署描述符portlet . xml(对于符合JSR 168规范的标准化portlet)中定义过期缓存的持续时间。
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