examples/org.eclipse.ocl.examples.codegen/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
  <extension point="org.eclipse.emf.codegen.ecore.generatorAdapters">
     <adapterFactory class="org.eclipse.ocl.examples.codegen.ecore.OCLGeneratorAdapterFactory"/>
  </extension>

</plugin>