code: public String[] getServiceDefinitions(Context context,
                                             String PID,
                                             Date asOfDateTime)
              throws ServerException {
          //m_ipRestriction.enforce(context);
          return da.getServiceDefinitions(context, PID, asOfDateTime);
      }
docs: Get a list of service definition identifiers for dynamic disseminators
  associated with the digital object.
  
  @param context
  @param PID
  identifier of digital object being reflected upon
  @param asOfDateTime
  @return an array of service definition PIDs
  @throws ServerException