An example of schema

29 Apr 2002 03:46:41 -0000

Hi,
I'm so new to xml schema and am reading Oreilly "Learning XML" e-book from "Safari Tech Books Online". There is an example of a schema at the end of chapter 5 of the book. I tried to validate it by xerces through a sample validation program called sax.SAXCount. It has too many errors like it is not a valid schema at all. I guess it is because of version used in this example - 1999. I compared this with another schema a sample coming with xerces set - 2001 version . Wow too much difference. How? Is there really no support for such schema mentioned in this book? or I have problems in using something?
Anyway I have written the sample schema and the related xml doc here. Oh yes I had to add some additional code to XML file for linking to the schema file... I have deleted an attribute also... These are the differences I've made to the original example of the book :)
Thanks
Ramin
 
The xsd file :
 
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/1999/XMLSchema">
 
  <xsd:annotation>
    <xsd:documentation>
      Census form for the Republic of Oz
      Department of Paperwork, Emerald City
    </xsd:documentation>
  </xsd:annotation>
 
  <xsd:element name="census" type="CensusType"/>
 
  <xsd:complexType name="CensusType">
    <xsd:element name="censustaker" type="xsd:decimal" minoccurs="0"/>
    <xsd:element name="address" type="Address"/>
    <xsd:element name="occupants" type="Occupants"/>
  </xsd:complexType>
 
  <xsd:complexType name="Address">
    <xsd:element name="number" type="xsd:decimal"/>
    <xsd:element name="street" type="xsd:string"/>
    <xsd:element name="city"   type="xsd:string"/>
    <xsd:element name="province"  type="xsd:string"/>
    <xsd:attribute name="postalcode" type="PCode"/>
  </xsd:complexType>
 
  <xsd:simpleType name="PCode" base="xsd:string">
    <xsd:pattern value="[A-Z]-d{3}"/>
  </xsd:simpleType>
 
  <xsd:complexType name="Occupants">
    <xsd:element name="occupant" minOccurs="1" maxOccurs="50">
     <xsd:complexType>
      <xsd:element name="firstname" type="xsd:string"/>
      <xsd:element name="surname" type="xsd:string"/>
      <xsd:element name="age">
       <xsd:simpleType base="xsd:positive-integer">
        <xsd:maxExclusive value="200"/>
       </xsd:simpleType>
      </xsd:element>
     </xsd:complexType>
    </xsd:element>
   </xsd:complexType>
 
</xsd:schema>
The xml file :
 
<census xmlns:xsd="http://www.w3.org/1999/XMLSchema-instance"
        xsd:noNamespaceSchemaLocation="census.xsd">
  <censustaker>738</censustaker>
  <address>
    <number>510</number>
    <street>Yellowbrick Road</street>
    <city>Munchkinville</city>
    <province>Negbo</province>
  </address>
  <occupants>
    <occupant status="adult">
      <firstname>Floyd</firstname>
      <surname>Fleegle</surname>
      <age>61</age>
    </occupant>
    <occupant>
      <firstname>Phylis</firstname>
      <surname>Fleegle</surname>
      <age>52</age>
    </occupant>
    <occupant>
      <firstname>Filbert</firstname>
      <surname>Fleegle</surname>
      <age>22</age>
  </occupants>
</census>

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