For each property in the Item class, a new element is created and associated with an element that corresponds to the property name.
对于item类中的每个属性，一个新元素被创建并关联到一个与该属性名对应的元素。
The Item class is the same one used in the previous article, but it no longer implements any manual serialization methods. Figure 1 depicts this simple setup.
item类与前一篇文章中使用的一样，但是不再实现任何手工序列化方法。
The one line of code in the class body of Order defines its relationship to the Item object.
在Order类体中有一行代码定义了它与Item对象的关系。
This set of properties is often associated with an item class, as we discussed in the answer to the previous question.
正如在回答前面的问题时所讨论的那样，这组属性通常与一个项目类相关联。
In this case, a global item class can be defined for the connector, to serve as a way to retrieve those properties that can always be accessed.
在这种情况下，可以为连接器定义一个全局项目类，作为对那些一直可以进行访问的属性进行检索的方法。
If I decided to use both the taxonomy and the category as folders, then the connector would then most likely map an item class to each, in order to distinguish them.
如果决定将分类法和类别都用作文件夹，那么连接器很可能将一个项目类映射到这两者，以便区分它们。
Note that you added an Action and also mentioned a class that would be invoked when a user clicks the menu item.
请注意，您添加了一项Action，并且还提供了当用户单击该菜单项时应该调用的类。
When overridden in a derived class, returns an instance of the requested item type.
在派生类中重写时，返回所请求的项类型的实例。
The destination of classification is to learn a classification function or classification model that can map a data item to a preassigned class.
分类的目的是学会一个分类函数或分类模型，该模型能把数据库中的数据项映射到给定类别中的某一个。
Repositories with more rigid item classes will restrict metadata operations to those properties within the item class.
具有更加严格的项目类的存储库会将元数据操作限制到项目类内部的属性范围内。
OmniFind is a repository that does not have any notion of an item class; instead, it relies on the user to define what properties can be set for a particular item.
OmniFind是一种没有任何项目类概念的存储库，相反，它依靠用户来定义该为某一个项目设置什么样的属性。
When overridden in a derived class, gets a value representing the model item of the resource.
当在派生类中重写时，获取一个表示资源的模型项的值。
For each item type there is a separate item handle class used to represent references to items of that type; item handles consist of item type and item id.
对于每个项类型，存在一个单独的项句柄类，用于表示对该类型的项的引用；项句柄由项类型和项id组成。
When overridden in a derived class, returns a value indicating whether the context item manager contains an item of the specified type.
当在派生类中重写时，返回一个值，该值指示上下文项管理器是否包含指定类型的项。
The AnimationManager class controls the timer and sends animate messages out to the first item in its list of Animation objects.
AnimationManager类控制定时器并向其Animation对象列表中的第一项发送动画消息。
Copy and Paste Class – This is a bit of a misnomer as it copies all the classes in a specific project item.
复制和粘贴类（Copy and Paste Class）——这或许有些名不副实，因为它可以在一个特定的项目文件中复制所有的类。
It's important to note that not all of the properties in the item class will necessarily exist on every Content object in that class, and that is acceptable.
一定要注意，条目类中的所有属性不一定在这个类中的每个Content对象上都存在，这是可以接受的。
Given an object being tested (such as item in Listing 5) and a target class (Integer) being cast to, the class loader checks the following rules.
当检查对象(例如清单5中的item)并把类型转换成目标类(Integer)时，类装入器会检查以下规则。
Each item that your connector returns to the client will be associated with an ItemClass, even if that class is just the generic, global class.
连接器返回给客户机的每个条目与一个ItemClass相关联，即使这个类只是一般性的全局类。
Like system properties, global property descriptions are stored in the global item class by the connector.
与系统属性相似，连接器将全局属性描述存储在一个全局条目类中。
System property descriptions in the OmniFind connector are stored in a global item class.
OmniFind连接器中的系统属性描述存储在一个全局条目类中。
When the connector needs to add a system property to a Content object, it will first look up the property description from the global item class.
当连接器需要将一个系统属性添加到Content对象中时，它首先从这个全局条目类查询属性描述。
All deck machinery and ship's equipment must be provided with qualified certificate, the item need to be inspected by class shall be provided with the classification society certificate.
所有甲板机械与船舶设备必须提供质量合格证书，需经船检部门检验的项目需提供船级社证书。
Each Content object will then be a member of the global item class, which will contain all of the afore-mentioned properties.
每个Content对象是全局条目类的一个成员，它包含前面提到的所有属性。
Property descriptions that aren't part of an item class can still be used to create properties; it's not required that a property description be part of an item class.
还可以使用不属于条目类的属性描述创建属性；不要求属性描述是条目类的一部分。
The default item class on a RepoItem is null, so the item class on all Folder objects in the example connector will also be null.
RepoItem 上的默认条目类是null，所以示例连接器中所有Folder对象上的条目类也是 null。
In some cases, there may be no item class on an item, so null can be returned.
在某些情况下，条目中没有条目类，所以可以返回null。
You are also setting the name of the item class at this point in time, which will be discussed when we talk about item properties.
还可以设置条目类的名称，这将在讨论条目属性时讨论。
After it has determined the item type, your connector will need to construct the item in the appropriate class and return it to the user.
在判断条目类型之后，连接器需要在适当的类中构造条目，并将它返回给用户。
After it has determined the item type, your connector will need to construct the item in the appropriate class and return it to the user.
在判断条目类型之后，连接器需要在适当的类中构造条目，并将它返回给用户。
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