You can extend the set of indexed content beans by customizing a property of the content selector called contentTypeNames. This is useful when you use extensions because an extension cannot extend a property file, but it can extend Spring configuration.

The following example defines a simple configuration which customizes the bean contentTypeNames, defined in file caefeeder-triggers.xml, by adding a CMPicture to the set of content types defined in feeder.contentSelector.contentTypes:

<customize:append id="contentTypeNamesCustomizer" bean="contentTypeNames">
  <list>
    <value>CMPicture</value>
  </list>
</customize:append>