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Enterprise Application Integration With XML and Java™ by Bill la Forge, JP Morgenthal

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9.4. Summary

This chapter illustrated one method of building a declarative processing environment. The declarative programming environment provides us with a mechanism for dynamically handling new data object types without significant re-coding and testing. By manipulating shared XML documents, we are able to change the behavior for operating over XML documents and can thereby create dynamic applications that have a very low maintenance requirement. This concept can be extended to enhance any type of processing requirement, not just XML. For example, we could use the XML OPERATION documents to initiate a database transaction or create a new user interface. We also illustrated in this chapter the creation of a new XML vocabulary, using DTD syntax, ...

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