因为SQLObject总是需要该字段对象，所以它总会创建一个。
Because SQLObject always needs this field object, it always creates one.
最后注意，无需在PhoneNumber中为id字段创建字段对象。
Finally, note that there's no need to create a field object in PhoneNumber for the id field.
描述符也可以提供与注释相同的有关实体的元数据信息，如主键字段，以及对象之间的任何映射。
The descriptor can also provide the same metadata information about the entities as annotations, such as primary key field, and any mappings between objects.
定义操作字段与中间对象之间的映射。
Define the mapping between action fields and intermediate objects.
这种做法并不常见，因为需要开发人员创建仅用于访问非实例(静态)方法和字段的对象的实例。
This is unusual because it requires a developer to create an instance of an object just to access non-instance (static) methods and fields!
引用对象的字段也可以作为中介处理程序参数公开。
Fields that reference objects can also be exposed as mediation handler parameters.
如果你没必要访问对象的字段，那么使你的方法成为静态方法。
If you don't need to access an object's fields, make your method static.
这可以通过外部值和内部对象字段来实现。
This is done with external values and internal object fields.
所有下拉列表、网格视图和表单字段都绑定到业务对象。
All drop-down lists, grid views, and form fields are bound to the business objects.
这个结构还有其他字段，比如查询类型、对象uuid、接口id等等。
This structure also has other fields like inquiry type, object UUID, interface ID among others.
所使用的表示法取决于字段是简单对象类型、简单原语类型还是数组类型。
The representation used depends on whether the field is a simple object type, a simple primitive type, or an array type.
元数据浏览器只显示适用于用户选择的数据操作的对象和字段。
The metadata browser displays only the objects and fields that are applicable to the user-selected data operations.
团队无法确定的字段或对象常常对于了解给定设备的功能很关键。
The fields or objects that the team was uncertain about were often central to the function of a given device.
下一步，您需要指定如何将每个事件对象字段映射到中间对象字段。
Next you need to specify how each of the event object fields is mapped to the intermediate object fields.
业务对象中的对应字段将自动设置为空。
The corresponding field in the business object is automatically set to null.
它包括对象的名称和字段的数组。
下一步，您需要定义如何在中间对象的基础上构造操作，以及定义从中间对象字段到操作字段的映射。
Next, you need to define how the actions are constructed from intermediate objects and the mapping from the intermediate object fields to the action fields.
JSDT试图解析对象的所有字段和方法。
JSDT attempts to resolve all fields and methods for an object.
定义中间对象字段与事件字段之间的映射。
Define the mapping between intermediate object fields and event fields.
表2显示了每个操作对象字段的详细信息。
The detailed information of each action object field is shown in Table 2.
尤其是，要检查应该填充的中间对象字段是否存在。
In particular, look to see whether intermediate object fields that should be populated are there or not.
这将指定在事件字段的基础上构造中间对象的所有字段。
This specifies all the fields of the intermediate object that are constructed from event fields.
在编写这些查询时，有一点需要加以注意，即要将定制对象和字段与标准对象和字段区分开。
An important thing to remember when you write these queries is to distinguish custom objects and fields from standard objects and fields.
事件对象数据字段将成为中间对象的字段构造器。
The event object data field will be the field constructor of the intermediate object.
这里，可以单击要添加到业务对象的字段。
Here, you can click which fields you want to be added to your business object.
它们通常用于计算事件中不存在的中间对象字段。
They are typically used to compute fields of the intermediate object that are not present in the event.
在调用某个方法时，您经常会在传递一个有多个字段的对象以及单独传递字段之间做出选择。
When calling a method, you can often choose between passing a single object that has multiple fields and passing the fields individually.
如果您能想起的话，前面我们曾将业务对象字段设置为可搜索。
If you recall, earlier we made our business object fields searchable.
在面向对象设计中，传递对象通常能提供较好的封装，因为对象字段的变化不需要改变方法签名。
With object-oriented designs, passing the object often provides better encapsulation, in that changes in the object fields don't require changes to the method signature.
这将指定在事件字段的基础上构建中间对象的字段。
This specifies the fields of the intermediate object that are built from the event fields.
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