This text file contains sample code fragments from:
Section 14.3 - Special Message Exchange Patterns
Chapter 14 - Advanced WSDL Part I: Modularization, Extensibility, MEPs, and Asynchrony
Book - Web Service Contract Design & Versioning for SOA
Series - Prentice Hall Service-Oriented Computing Series from Thomas Erl
Site - www.soabooks.com


<operation name="updateTemperature" pattern=
  "http://www.w3.org/ns/wsdl/robust-in-only ">
  <input element="weather:updateTemperature"/>
  <outfault element="weather:updateTemperatureFault"/>
</operation>

Example 14.11 - An operation defined with the Robust In-Only MEP.


<operation name="opOrderStatusNotification"
  pattern="http://actioncon.com/mep/in-multiple-out">
  <input element="po:subscribe"/>
  <output element="po:status"/>
</operation>

Example 14.12 - The definition of the custom In-Multiple-Out message exchange pattern. Note that because tools will not recognize custom MEPs, this is not a very portable solution.