Chapter 4 XML Processing

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Figure 4.10 shows the class diagram for a basic XML document editor design,

while Figure 4.11 shows the class diagram for an XML document editor factory

design. You should consider using a similar design in the following situations:

  When you want to keep the business objects focused on business logic and 

keep code to interact with XML documents separate from business logic code. 

  In a similar way, when you want to keep the Web service endpoints focused on 

interaction logic and keep code to pre  and post process XML documents sep 

arate from interaction logic code.

Interface

XMLDocumentEditor 

XMLDocument

EditorFactory 

+setDocument:void

+getDocument:Source

+copyDocument:void

creates

obtains

DomainSpecificXDE 

BusinessObject 

Interface

+setDocument:void

uses

+getDocument:Source

javax.xml.trans

encapsulates

+process:void

+copyDocument:void

form.Source 

+edit:Source

+getXXX:

      DomainSpecificObject

+setXXX:void

creates, extracts/inserts

obtains/modifies

DomainSpecificObject 

assigns/retrieves

Figure 4.11

Factory Design to Create Schema Specific XML Document Editors