This text file contains sample code fragments from:
Section 23.5 - Working with Unknown Content
Chapter 23 - Advanced Versioning
Book - Web Service Contract Design & Versioning for SOA
Series - The Prentice Hall Service Technology Series from Thomas Erl
Site - www.servicetechbooks.com


<lineItem>
  <productID>AY2345</productID>
  <productName>Service Blaster 2000</productName>
  <available>true</available>
</lineItem>

Example 23.18 - The available element extending the LineItem construct.


<lineItem>
  <productID>AY2345</productID>
  <productName>Service Blaster 2000</productName>
  <available mustRetain="true">
    true
  </available>
</lineItem>

Example 23.19 - The available element extended via a custom mustRetain attribute.