当底层数据改变时，可以重新生成它。
When the underlying data changed, it could simply be regenerated.
它们依靠SQL查询来操纵底层数据并提供输入。
They rely on SQL queries to manipulate the underlying data and provide input.
当用户进入表单的其他部分时，再获取底层数据。
As the user goes through other parts of the form, the underlying data can be fetched lazily.
其缺点在于会减少对弹出窗口布局和底层数据的控制。
The disadvantage is that you have less control over the layout of the pop-up and the underlying data.
这一切都没有改变底层数据，只是调整了显示方式而已。
This was all accomplished without changing the underlying data, just the presentation.
命中率与缓存大小、底层数据的数量和数据访问模式有关。
The hit ratio is a function of the cache size, the amount of underlying data, and the data access pattern.
图表显示被连接到底层数据，因此任何改动都能立即反映出来。
The chart display is linked to the underlying data so that any changes made are reflected immediately.
每当MQT的内容基于底层数据被更新时，也需要执行该步骤。
This step also needs to be executed whenever the contents of the MQT are to be updated based on the underlying data.
如果另一个过程没有通过缓存而更改了底层数据，那么会出现问题。
If another process changes the underlying data without going through the cache, that is a problem.
开发人员用这种模式将底层数据访问操作与高层业务逻辑分离开。
Developers use this pattern to separate low-level data access operations from high-level business logic. A typical DAO implementation has the following components.
这些底层数据调用整合到数据访问层中，对于业务逻辑是不可见的。
These underlying data access calls are thus consolidated in the data access layer and hidden from the business logic.
您是否害怕让应用程序退役，因为您日后可能需要用到它的底层数据？
Have you been afraid to retire an application because you fear you may someday need the underlying data?
一种补充方法是，当底层数据改变时，让缓存的数据项失效。
A complementary method is to invalidate the cached entry when the underlying data changes.
如果客户机用户修改了他们的服务配置，那么需要对底层数据进行保护。
If client users modify their service profiles, it might be important to protect the underlying data.
SOA中的关键组件是服务接口，因为它把底层数据提供给服务消费者。
The critical component in SOA is the service interface because it delivers the underlying data to the service consumers.
前端代码只有通过调用这些XML - RPC才能够接触到底层数据。
The front-end code can only get to the underlying data by making these XML-RPC calls.
该功能可以帮助确保标识的每个应用程序组件或服务都具有底层数据组件。
This feature helps to ensure that every application component or service identified has an underlying data component as well.
这两种类型的不同之处是：它们在游标打开时对底层数据的变化是否敏感。
These two types differ in whether they're sensitive to changes made to the underlying data while the cursor is open.
单击TriathlonController链接将显示底层数据存储为空。
Clicking the TriathlonController link shows that the underlying data store is empty.
您可能需要对底层数据进行连接或其他操作来合成视图呈现给客户端。
You might need to perform joins or other manipulation of the underlying data to present a synthesized view to the client.
该服务必须支持最少100个并发客户机，并应该不受任何底层数据存储失败的影响。
The service must support a minimum of 100 concurrent clients, and shall fail-safe through failures of any underlying datastore.
某个给定的应用程序可能从不更新底层数据，或者从来不与其它并发更新程序一起运行。
A given application might never update the underlying data or be run with other concurrent updaters.
当将User对象持久化到底层数据存储时，它将是一个Userkind。
When the User object is persisted to the underlying datastore, it'll be a User kind.
对于底层数据的采集本文使用了西门子公司的S7-300可编程逻辑控制器。
This paper uses the S7-300 programmable logic controller of Siemens to collect the bottom data.
您将无法通过改变底层数据来对一个分解后的图表进行更新，同时您将可能会失去某些格式。
You won’t be able to update an ungrouped chart by changing its underlying data and you might lose special formatting.
因为这些组件依赖底层数据，以保持稳定和适当地被恢复，所以jsf难于知道丢失了什么。
Because these components rely on the underlying data to be stable to be properly restored, it is hard for JSF to know that something is missing.
然后把所有初始字段标记为隐藏，从而允许显示值，而不会由于底层数据而使用户感到十分混乱。
We then mark all the original fields as hidden, allowing us to display the values without confusing the users with the underlying data.
这种模式可以提高性能，也有助于保持在缓存中的数据之间的一致性和底层数据存储的数据。
This pattern can improve performance and also helps to maintain consistency between data held in the cache and the data in the underlying data store.
这种模式可以提高性能，也有助于保持在缓存中的数据之间的一致性和底层数据存储的数据。
This pattern can improve performance and also helps to maintain consistency between data held in the cache and the data in the underlying data store.
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