If it is not in the cache, you know this is a valid request and you process and store the item in the cache.
如果它不在高速缓存中，您知道这是一个有效的请求，并将这个项处理并存储在高速缓存中。
Upon receiving a request, you can check if the item is not in the cache.
当接收到一个请求时，您可以检查这个项是不是不在高速缓存中。
One way to reflect this change is to let the client perform an extra request to get the item list every time it makes a change in the database.
反映此更改的方法之一就是每次在数据库中进行更改时使客户机执行一个额外的请求，来获得项目列表。
To get around this, you could only have the first request regenerate the cache, and every one else use the stale item until the new one is available.
为了解决这个问题，可以只为第一个请求重新生成缓存，而其他用户使用过时的版本，直到新的缓存项可用为止。
The first item in each tuple is a callable object (in this case a method pointer) and the second is a HTTP request type that the method should be called for.
每个元组的第一项是可调用对象（在这里是一个方法指针），第二项是HTTP请求类型，这种请求类型可以调用该方法。
The source takes the item data request and prepares the actual data to be transferred to the destination.
源接收到项目数据请求，并准备要传输到目标的实际数据。
By contrast, when customers request their orders (for viewing online, perhaps), they might want to see more information, for example, the human-readable name for a part on a line item.
相反，顾客要求订单时(也许为了在线查看)，他们可能想查看更多信息，例如，行项上一个部件的可读名称。
Services can use the policy set and policy name to explicitly request the version of the policy they require to process this work item.
服务可以使用策略集合及策略名显式的请求他们需要处理的这个工作条目的策略版本。
This method will request a server for an array that lists all the children of the item.
该方法将向服务器请求一个列出该条目所有子条目的数组。
When a content item is requested by a web page, the request is directed to the most appropriate edge location on the globe.
当网页请求一项内容的时候，请求会被定向到最适合的一个边缘节点。
Thus, a transfer work item request normally results in a delete and a create work item event.
因此，在正常情况下传送工作条目的请求会导致产生删除或者创建工作条目的事件。
When a user clicks on one of the nodes in the example, the tree will ask the store to load the item and the store will request the resource.
在本例中，当用户点击其中一个节点时，树将请求存储库加载条目，存储库将请求资源。
The PMS needs the work item to request a particular version to allow the service to check that it has the correct version.
PMS需要工作条目请求特定的版本以允许服务检查其是否有正确的版本。
SimpleDB is smart enough to update an item when a duplicate creation request is issued, too, provided the attributes of that item have been altered.
SimpleDB 非常智能，能够在发出一个副本创建请求时更新一个项目，只要该项目的属性已被更改。
Map the key attributes in the ClearQuest change request with the Jazz work item.
将ClearQuest变更请求中的关键属性映射为Jazz工作项。
Once a resource is stored in the application cache, the browser will not request it from the Web until the cached item is de-cached or the cache manifest is invalidated.
一旦一个资源被存储在这个应用程序缓存中，浏览器将不需要从Web中请求它，直至缓存项被清除或者缓存清单无效。
The XML format of the incoming request has each parameter being passed to the method as an item under the tag parameters.
传入请求的xml格式将每个参数作为parameters标记下的每个项目传递给方法。
Whereas JSF gives you a host of event options -- menu item selected, button clicked, etc. -- most Model 2s rely on the more simple "request received."
尽管JSF给了您很多事件选项（菜单项选择、按钮单击，等等），但是大多数Model2依赖于更加简单的“请求接受”。
The developer to whom the project manager at Site A assigned the new change request sees that he has a new "High Priority" work item.
被SiteA的项目经理分配新的变更请求的开发者将看到他有一个新的“高优先级”的工作条目。
You pass the URL in the request to the application server for calculating the insurance cost of each item purchased. Listing 9 shows tihs process.
将URL放在请求中传递给应用服务器，请求计算购买的每种商品的保险费。
And Groovy supports an external iterator (also known as a pull iterator because you must request the next item in the collection), shown in Listing 3.
而且Groovy支持外部迭代器(也称为pull迭代器，因为必须请求集合中的下一项)，如清单3所示。
The item values (only one is shown here for clarity, but you will see more in a real response) are representations of the stored parameters from your POST request.
这些项的值（真实的响应中有多个值，为简明起见，这里只显示了一个）是来自您的 POST 请求的已存储参数的表示。
Simple, short-lived, request-response services like Credit Card Authorization, Calculate Tax, Get Item, Find Book, Check Stock, and so on, dominate the landscape.
诸如“信用卡授权”、“税款计算”、“获取项目”、“查找图书”、“检查股票”等简单的短时间请求-响应服务占据支配地位。
In previous versions of ClearQuest work was managed by creating a record type for each item to be managed (Defect, Change Request, etc.).
在ClearQuest先前版本中，必须通过为每个被管理(缺陷、变更请求，等等。)的条目创建记录类型的方式来管理工作。
Add an item business object to the list of items for the order by right-clicking the items row in the Initial request parameters section, and selecting Add Element.
通过右键单击Initialrequestparameters部分的产品行并选择add Element，您可以向订单的产品列表添加一个Item业务对象。
The first part of the application is a client application where the end-user simply fills out a form to request delivery of an item, expecting a Courier id in return.
应用程序的第一部分是在终端用户简单地填写请求项目交付表单处的客户应用程序，预期返回向量标识。
Should I enclose payment, ask to be billed, or request that the item be sent COD?
我要附寄货款，还是要求寄账单付款，或者请求货到。
A requirement work item that has details of what is new or has changed should also be created and linked to the change request.
此外，应创建一个包含有关新内容或已更改内容的详细信息的要求工作项，并将其链接到更改请求。
Reasons of Network Service Request are detailed information on applied item.
网络服务请求的原因是应用项目的详细信息。
Reasons of Network Service Request are detailed information on applied item.
网络服务请求的原因是应用项目的详细信息。
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