艾普，你的钱包在哪？
Figure 1 shows the state diagram for the EPPS Service.
图1显示了EPPSService的状态图。
Next look at the sample portal application that USES the EPPS.
下面看一下使用EPPS的门户应用程序范例。
The command cache is a container-managed cache; EPPS is a bean-managed cache.
命令行缓存是容器管理的缓存；epps是bean管理的缓存。
Figure 2 shows the class diagram of the sample implementation of EPPS Service.
图2显示了EPPS Service样本实现的类图。
Because EPPS is a portlet service, it is a discoverable extension to the portal functionality.
因为EPPS是一个portlet服务，它是门户功能的一个可发现的扩展。
To follow on with the description, download the sample application code, which includes the EPPS code.
为了继续往下描述，请下载示例应用程序代码，其中包含了EPPS 代码。
Therefore, you see that the EPPS adds additional flexibility to the caching mechanisms provided by WebSphere.
因此，您会发现EPPS为WebSphere提供的缓存机制增加了更多的灵活性。
This article includes a sample application to illustrate when to use the EPPS, how to implement it, and how to deploy it.
本文包含了一个示例应用程序，用来举例说明什么时候使用EPPS，如何实现它，以及如何部署它。
If the property is not found, or is expired, the application has to call the backend to get the property, save it to EPPS, and then return the property.
如果没有发现该属性，或者已经过期了，应用程序不得不调用后端来获取属性，把它保存到EPPS，并且返回该属性。
With the EPPS, you can define a default cache time and specific cache times for individual objects, to meet caching requirements based on business logic.
使用EPPS，您可以定义默认的缓存时间，也可以为单独的对象定义特定的缓存时间，根据业务逻辑需求来选择缓存。
Ms Rotman Epps also said that she does not see a lack of apps holding Amazon's tablet back, because most users' tablets are currently used primarily for email and web browsing.
鲁特曼•普斯女士还表示，她没有发现缺乏应用程序妨碍了亚马逊平板电脑的销售，因为目前大多数用户主要用平板电脑发邮件和阅览网页。
Ms Rotman Epps also said that she does not see a lack of apps holding Amazon's tablet back, because most users' tablets are currently used primarily for email and web browsing.
鲁特曼•普斯女士还表示，她没有发现缺乏应用程序妨碍了亚马逊平板电脑的销售，因为目前大多数用户主要用平板电脑发邮件和阅览网页。
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