slide 38

Atomic Types

• An atomic type is
  • A primitive simple type as defined in W3C XML Schema
    • e.g. xs:string, xs:boolean, xs:date, xs:gYear, xs:integer, xs:anyURI ...
    • Identified by the http://www.w3.org/2001/XMLSchema namespace
      bind as xmlns:xs="http://www.w3.org/2001/XMLSchema"
  • A type derived from another atomic type by restriction
  • One of five new types
    • xdt:untyped
    • xdt:untypedAtomic
    • xdt:anyAtomictype
    • xdt:dayTimeDuration
    • xdt:yearMonthDuration
    • Identified by the XPath 2.0 namespace
      try xmlns:xdt="http://www.w3.org/2005/02/xpath-datatypes"
      (But check: this namespace is from the February draft!)