- Copyright
- Advance Praise for Using XML with Legacy Business Applications
- Preface
- Introduction
- Converting XML to CSV
- Converting CSV to XML
- Learning to Read XML Schemas
- Rope, Anyone?
- A Few Different Document Approaches
- DTD Refresher
- Foundation Concepts and Terminology
- General Features
- Simple Content Elements
- Complex Content Elements
- Understanding Namespaces
- Structuring Schemas
- Less Commonly Used W3C XML Schema Language Features
- Is There Data or Not?
- Reference
- Resources
- Validating against Schemas
- Refining the Design
- Why Refine the Design?
- Making XML the Common Format
- Analyzing the Legacy Non-XML Grammars
- Describing the Legacy Non-XML Grammars
- Representing the Legacy Non-XML Grammars in XML
- Additional DOM Processing Considerations and Strategies
- Multilingual Issues
- Error Handling Strategy
- High-Level Design
- Detail Design
- Java Implementation
- C++ Implementation
- References
- Resources
- Converting CSV Files to and from XML, Revisited
- CSV to XML: Functionality and Operation
- XML to CSV: Functionality and Operation
- Describing the File Formats
- Schema Examples
- High-Level Design Considerations
- CSV to XML: Detail Design
- XML to CSV: Detail Design
- New DataCell Methods and Derived Classes
- Java Implementation
- C++ Implementation
- Enhancements and Alternatives
- Resources
- Converting Flat Files to and from XML
- Flat File to XML: Functionality and Operation
- XML to Flat File: Functionality and Operation
- Describing the File Formats
- Schema Examples
- High-Level Design Considerations
- Flat File to XML: Detail Design
- XML to Flat File: Detail Design
- New DataCell Methods and Derived Classes
- Java Implementation
- C++ Implementation
- Enhancements and Alternatives
- Resources
- Converting EDI to and from XML
- Overview of the X12 EDI Syntax and Standards
- X12 to XML: Functionality and Operation
- XML to X12: Functionality and Operation
- Describing the File Formats
- Schema Examples
- Supplemental Data Store for Control Numbers
- High-Level Design Considerations
- X12 to XML: Detail Design
- XML to X12: Detail Design
- New DataCell Methods and Derived Classes
- Java Implementation
- C++ Implementation
- Enhancements and Alternatives
- Reference
- Resources
- Converting from One XML Format to Another with XSLT
- Using the Conversion Techniques Together
- Building XML Support into a Business Application
- Security, Transport, Packaging, and Other Issues
- GNU General Public License
- Pseudocode Conventions
- COM Essentials for the Non-COM Programmer
- Bibliography
- Credits
File Description Document Schemas
As with our other formats, there are four schemas involved in describing X12 interchanges and their xml representation.
The schemas introduced in this chapter are very similar to those developed in Chapters 7 and 8. The main difference in our X12 schemas is that instead of using the FieldGrammarType from our common schema, we define an ElementGrammarType. The main reason we do this is that our X12 utilities don't support all the other data types we have defined. We create a new X12DataType simple type for the DataType Attribute instead of using the BBDataType.
Note that the SegmentType complex type, unlike the flat file's FlatRecordType and the CSV's RowDescription Element, allows two different types of child Elements in its sequence. We can have a mix of SimpleElementDescription Elements and CompositeStructureDescription Elements. We indicate this with a choice content model within the sequence.
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