Advanced XML

• Outline
• Part I: XML Infoset
• A normal XML document
• A canonical XML document
• An org.w3c.dom.Document object formed by reading hotcop.xml
• Are these three the same thing or not?
• What is the XML InfoSet?
• The InfoSet defines 15 kinds of Information Items
• The Document Information Item
• Elements
• Element Information Items
• Attributes
• Comments
• A Processing Instruction Information Item Includes:
• Characters
• Namespace Declarations
• Document Type Declaration
• Document Type Definition
• Entities
• Entity Marker Information Items
• Entity Declaration Information Items
• The InfoSet Omits:
• What is Canonical XML?
• How are documents canonicalized?
• Digital Signatures
• To Learn More
• Questions?
• Part II: JDOM
• Where we're going
• Trees
• Processing XML with JDOM is easy
• What is JDOM?
• About JDOM
• JDOM versions
• Four packages:
• The org.jdom package
• The org.jdom.input package
• The org.jdom.output package
• The org.jdom.adapters package
• Writing XML Documents with JDOM
• A JDOM program that writes this XML document
• Hello JDOM
• Actual Output
• Hello DOM
• A Java program that writes Fibonacci numbers into a text file
• fibonacci.txt
• fibonacci.xml
• A JDOM program that writes Fibonacci numbers into an XML file
• Output
• A DOM program that writes Fibonacci numbers into an XML file
• Suppose you want to include a DTD
• ValidFibonacci
• validfibonacci.xml
• Using Namespaces
• With Namespace Prefixes
• The Default, Unprefixed Namespace
• With Default Namespace
• Converting data to XML
• Sample Tab Delimited Data: Baseball Statistics
• A Program to convert tab delimited data to XML
• Baseball Stats in XML
• A Shortcut
• Converting data to XML while Processing it
• Batting Averages in XML
• Advantages of JDOM for Writing Documents
• Reading XML with JDOM
• Parser APIs
• JDOM Compatible Parsers for Java
• SAX
• SAX2
• The SAX Process
• Event Based API Caveats
• Document Object Model
• The Design of the DOM API
• DOM Evolution
• Eight Modules:
• DOM Trees
• org.w3c.dom
• The DOM Process
• The JDOM Process
• Parsing a Document with JDOM
• Parser Results
• Turning on Validation in JDOM
• JDOM Validator
• Validation Output
• Building with DOM instead of SAX
• DOMBuilder Example
• Reading XML Documents
• UserLand's RSS based list of Web logs
• Goal: Return a list of all the URLs in this list as java.net.URL objects
• The SAX ContentHandler interface
• SAX Design
• User Interface Class
• ContentHandler Class
• Weblogs Output
• Weblogs with DOM
• DOM Design
• The Node Interface
• The NodeIterator Interface
• The NodeFilter Interface
• Weblogs with DOM
• Weblogs Output
• Weblogs with JDOM
• JDOM Design
• Weblogs with JDOM
• Weblogs Output
• The org.jdom Package
• The Document Node
• The Document Class
• Document Example
• Output from XMLPrinter
• Element Nodes
• Element Class Implementation
• The Element Class
• Element Example: XCount
• XCount Output
• Handling Attributes in JDOM
• The Attribute Class
• IDTagger
• Before IDTagger
• After IDTagger
• Handling Entities in JDOM
• The Entity Class
• Handling Comments in JDOM
• The Comment Class
• Comment Example
• CommentReader Output
• ProcessingInstruction Nodes
• The ProcessingInstruction Class
• XLinkSpider that Respects the robots Processing Instruction
• Handling Namespaces
• The Namespace Class
• The Namespace Class
• DocType Nodes
• The DocType class
• Example of the DocType Class
• XHTMLValidator
• Using the XHTMLValidator
• The Verifier Class
• The Verifier Class
• JDOMException
• JDOMException Class
• The org.jdom.output Package
• Serialization
• XMLOutputter
• Using the XMLOutputter Class Directly
• Using the XMLOutputter Class Indirectly
• JDOM based TagStripper
• Output from a JDOM based TagStripper
• Talking to DOM Programs
• Talking to SAX Programs
• What JDOM doesn't do
• To Learn More
• Questions?
• Part III: XML Base and XInclude
• What is XML Base?
• The xml:base attribute
• XML Base Example
• Open Issues
• What is XInclude?
• Alternatives (and why they don't work)
• The include element
• The parse attribute
• Implementation as a SAX filter
• Implementation as JDOM
• Implementation as DOM
• To Learn More
• Questions?
• Part IV: Schemas
• What are Schemas?
• About Schemas
• What's Wrong with DTDs?
• DTDs vs. Schemas
• Schema versions
• greeting.xml
• greeting.xsd according to the April 7 Working Draft
• Attaching the schema to the document without namespaces
• Validating the document with Xerces-J 1.2.0
• An Invalid Document
• Checking the Invalid Document
• greeting.xsd in the Candidate Recommendation
• New XSI namespace
• Validating the document with XSV
• An Invalid Document
• Checking the Invalid Document
• A More Complex Document
• Complex vs. Simple Types
• A More Complex Schema
• Three main schema elements:
• Validating the Song Document
• Fixed Hot Cop
• Primitive Data Types for Schemas
• Numeric Data Types for Schemas
• Time Data Types for Schemas
• XML Data Types for Schemas
• Assorted Data Types for Schemas
• A Document with Attributes
• Declaring Attributes
• Element Content
• Declaring Complex Types
• Sharing Content Models
• Mixed Content
• Declaring Mixed Content
• When Order Doesn't Matter
• The xsd:all Group
• Choices
• Sequences
• Adding a Price
• Derived Types
• Regular Expressions
• The xsd:simpletype element
• The Price Schema
• Default Namespace
• The targetNamespace attribute
• A Song with a Namespace
• A Schema for a Document that Uses the Default Namespace
• Multiple Namespaces, Multiple Schemas
• XLink Schema
• Song Schema with XLink Support
• Annotations
• What Schemas don't do
• Schema Alternatives
• Schematron
• RELAX
• DTDs aren't Dead!
• To Learn More
• Questions?
• Part V: XLinks
• Three Technologies
• Versions
• HTML Links are Limited
• XLinks are More Powerful
• Application Support
• Linking Elements
• For example
• Declaring XLink Attributes in DTDs
• Fixed Attributes
• Other Attributes
• Descriptions of the Remote Resource
• Link Behavior
• xlink:show
• xlink:actuate
• Parameter Entities for Link Attributes
• Extended Links
• Extended Links
• Resources
• Resource Example
• Resource Example Diagram
• Roles and Titles for Resources
• DTD for Extended Links
• Another Shortcut for the DTD
• Arcs
• Arc Example
• Arc Example Diagram
• Arc Example
• Arc Example Diagram
• Arc Example with omitted to attribute
• Arc Example Diagram
• Arc DTD Fragment
• Out-of-Line Links
• Out of line Link example
• Out of line Link example
• Out of line Link Example
• Another Out of line Link Example
• Linkbases
• XLink Summary
• To Learn More
• Questions?
• Part VI: XPointers
• XPointers
• What are XPointers?
• Why Use XPointers?
• XPointer Examples
• A Concrete Example
• Location Paths, Steps, and Sets
• Location Steps
• Location Paths
• Location Paths that Identify Multiple Nodes
• Axes
• Location Step Axes
• The child Axis
• The descendant Axis
• The descendant-or-self Axis
• The parent Axis
• The self Axis
• The ancestor Axis
• The ancestor-or-self Axis
• The preceding Axis
• The following Axis
• The preceding-sibling Axis
• The following-sibling Axis
• The attribute Axis
• Node Tests
• Predicates
• Boolean Conversion
• The position() function
• Identifying an element by its position
• Functions that Return Node Sets
• id()
• here()
• origin()
• Points
• Point Expressions
• Ranges
• Range Expressions
• Range Functions
• String Ranges
• Child Sequences
• Summary
• To Learn More
• Questions?
• Part VII: The Oracle Speaks, Predictions for the Future
• XInclude succeeds once parsers support it
• JDOM succeeds, much to the consternation of the W3C
• Schemas, a partial success
• XLinks
• XPointers; the same story
• Stuff we didn't talk about
• XSLT 1.1
• XSL-FO
• DOM Level III
• XHTML Fails
• XML Query Languages
• Schema Repositories all fail
• MathML succeeds
• SVG Takes Off in 2001
• Browser Support
• Invent the Future!
• To Learn More
• Questions?

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