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For reporting one could use XML/XSL based reporting tools (not that I know of any) since object graphs can now be easily transformed to XML. I actually used that approach in an e-gov application I developed:
   * get a XML representation of the results of a query
   * apply a xSL stylesheet to transform the XML into a XSL:FO stylesheet
   * hand the XSL:FO stylesheet over to a processor like FOP

See: HowDoIQueryMyObjects