@Override
 public MutableFudgeMsg buildMessage(FudgeSerializer serializer, CalculationJobItem object) {
   MutableFudgeMsg msg = serializer.newMessage();
   ComputationTargetSpecification computationTargetSpecification =
       object.getComputationTargetSpecification();
   if (computationTargetSpecification != null) {
     MutableFudgeMsg specMsg = serializer.objectToFudgeMsg(computationTargetSpecification);
     for (FudgeField fudgeField : specMsg.getAllFields()) {
       msg.add(fudgeField);
     }
   }
   String functionUniqueIdentifier = object.getFunctionUniqueIdentifier();
   if (functionUniqueIdentifier != null) {
     msg.add(FUNCTION_UNIQUE_ID_FIELD_NAME, functionUniqueIdentifier);
   }
   FunctionParameters functionParameters = object.getFunctionParameters();
   if (functionParameters != null) {
     serializer.addToMessageWithClassHeaders(
         msg, FUNCTION_PARAMETERS_FIELD_NAME, null, functionParameters);
   }
   long[] inputs = object.getInputIdentifiers();
   msg.add(INPUT_FIELD_NAME, inputs);
   for (ValueRequirement desiredValue : object.getDesiredValues()) {
     serializer.addToMessage(msg, DESIRED_VALUE_FIELD_NAME, null, desiredValue);
   }
   return msg;
 }