Active XML文档重写机制的研究

Research of Rewriting of Active XML Documents

Active XML定义为一种动态的XML,主要思想是在XML中嵌入Web Services调用。当Active XML文档用作表示和交换时,通过调用相应的Web Services,用返回结果取代Active XML文档中的Web Services调用或者作为子节点插入,这个过程称为重写。针对应用要求不同的场景,总结了两类重写方式:无模重写,即在重写时不受Schema约束;有模重写,重写时要符合预定的Schema。在对无模方式做了简单讨论后,对有模方式的算法做了详细讨论,为拓展Active XML技术的应用领域提供了技术支持。

Active XML document is a type of dynamic XML that some of the data are defined by means of embedded calls to Web seriees. When such documents are represented and exchanged among applications, one can materialize Web .services calls and replace these calls by return results or inserted as subnode, and the process is called rewriting. Concludes two methods that named no schema and schema to address this problem and describes respective rewriting algorithm in detail that is foundational to farther utilize.