Figure 2 shows that the state holder is a wrapper enclosing the un-typed document model.
图2表明了状态容器实际是非类型化文档模型的包装。
Since the main reason to have the wrapper objects was to encapsulate business data, they can be replaced with an XML data model.
因为包装器的主要用途是封装业务数据，所以可以用XML数据模型替换它们。
The application's business logic directly manipulates the XML model using the wrapper APIs.
应用程序的业务逻辑使用包装器api直接操作xml模型。
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