这个类存储共享内存标识符。
它还要使用另外两个参数，传输类标识符和替换类标识符。
It also takes two extra parameters, the transfer class identifier and the replacement class identifier.
相比之下，即使可以通过实例进行访问，描述符仍然属于类级别对象。
In contrast, the descriptor remains a class-level object, even though you can access it through the instance.
这些生成的构件是部署描述符和助手类。
These generated artifacts are deployment descriptors and helper classes.
新运算符——创建委托实现类的实例。
New operator — creates an instance of the delegate implementation class.
注意：当索引表达式被用于关系表达式，或作为某个操作符类函数的参数时，查询优化器将考虑使用函数索引。
Note: the query optimizer considers using a functional index when the index expression is used in a relational expression or as an argument to one of the operator class functions.
这两种索引都可以指定索引操作符类并按照降序或升序排列。
Both can specify an index operator class and both can be sorted in ascending or descending order.
这个描述符被包括在服务类成员之中。
This descriptor is included as a member of the service class.
仅次于类型选择符最常用的选择符是类选择符。
After type selectors, the most commonly used selectors are class selectors.
将操作符类与访问方法结合使用，可以指定创建索引和优化查询时使用的操作符。
An operator class is used in conjunction with the access method to specify the operators used for building the index and during query optimization.
占位符类用于在已映射方法的签名中支持OUT和INOUT参数。
Holder classes are used to support the OUT and INOUT parameters in mapped method signatures.
字段描述符指定类中定义的一个类的准确类型。
A field descriptor specifies the exact type of a field defined within a class.
文件中的所有行都是使用唯一ID标记的，并且所有的行都标有错误消息的标识符和类。
All the lines in the file are tagged with a unique id and all lines are tagged with the identifier and class of the error message.
与此不同，它包含用于所有类和占位符类文件的JXE文件，用于访问本地代码。
Instead, it contains the JXE file for all the classes and placeholder class files, which are used to access the native code.
与类选择符相似，ID选择符也基于一个属性的值，但这个属性是ID属性。
Like the class, an ID selector is based on the value of an attribute, but in this case, it's the ID attribute.
该占位符类可以通过将模板参数t与模板参数X绑定来实例化。
This placeholder class should represent the instantiation of List by binding the template parameter t to the template parameter of X.
操作符类通常为一组函数。
要部署业务对象，需要使用插件描述符将实现类放到系统类路径中。
To deploy a business component, the implementation classes need to be made available on the system classpath with a plug-in descriptor.
要从类外部调用静态方法，可使用类名加上范围解析符和方法名。
To call a static method from outside of its class, use the class name together with the scope resolution operator and the name of the method.
可以参考图2，了解HTML、ID和类选择符的css语法。
You can refer to Figure 2 to quickly check the CSS syntax for HTML, ID, and class selectors.
DescriptorProcessor：修改部署描述符的类。
DescriptorProcessor: class modifying the deployment descriptor.
DescriptorProcessor：修改部署描述符的类。
DescriptorProcessor: class modifying the deployment descriptor.
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