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  Apache ODE - Extension Installation Guide
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Since BPEL 2.0 it is possible to extend the language by user-defined
activities and custom variable assignment mechanisms.

Apache ODE supports these extensibility mechanisms
and provides a plug-in architecture that allows for registering
third-party extensions.

1.) Installation of extensions (WAR)
  1) Copy the extension 
        The extension bundle and its dependencies must be part of the 
        class path. The easiest way to achieve this is to copy the 
        extension jar to /WEB-INF/lib.

  2) Register the extension
        Open /WEB-INF/conf/ode-axis2.properties and add/uncomment the
        following lines:
        
        ode-axis2.extension.bundles.runtime = fqcn.to.extension.bundle
        ode-axis2.extension.bundles.validation = fqcn.to.extension.bundle
        
        The validation entry is only necessary if your extension bundle
        also provides compile-time validators
        
  3) Start/Restart Apache ODE
        
2.) Installation of extensions (JBI)
  1) Embed the extension 
        The extension bundle and its dependencies must be part of the 
        class path. The easiest way is to add the extension jar to the JBI 
        deployable.
        
  2) Register the extension
        Extract and open ode-jbi.properties from ODE SE and add/uncomment the
        following lines:
        
        ode-jbi.extension.bundles.runtime = fqcn.to.extension.bundle
        ode-jbi.extension.bundles.validation = fqcn.to.extension.bundle
        
        The validation entry is only necessary if your extension bundle
        also provides compile-time validators.
        
        Re-add the properties file to the service engine archive and deploy
        it to the JBI container of choice.