[jboss-user] [JBoss Seam] - Question On @Datamodel Outjection

[hasc]

Hello,

i have a problem outjecting a datamodel.

i have a class the holds the business logic for a calculation process. It holds the Entity Calculation.class where the data is stored. during the calculation i create another object that holds the response information.


  | @Stateful
  | @Scope(ScopeType.CONVERSATION)
  | @Name("scmanager")
  | public class CalculationManagerBean implements CalculationManager{
  | 
  |     @In(create=true)
  |     ExpressCalculator expresscalculator;
  | 
  |     @Out(scope=ScopeType.CONVERSATION,required=false)
  |     BudgetOverview budgetOverview;
  | 
  |     ...
  | 
  |     @Create
  |     public void init(){
  |         log.debug("initialize new calculation entity");
  |         calculation = new Calculation(user);
  |         return;
  |     }
  | 
  |    /*** business logic ***/
  | 
  |     public void executeExpressCalculation(){
  |         budgetOverview = expresscalculator.calculate(calculation);   
  |     }
  |     ...
  | }

@Stateless
  | @Name("expresscalculator")
  | public class ExpressCalculatorBean implements ExpressCalculator {
  | 		
  |     public BudgetOverview calculate(Calculation calculation) {
  |     
  |         // initialise BudgetOverview
  |         BudgetOverview budgetOverview = new BudgetOverview();
  |         
  |         //some code
  | 
  |         // this is the datamodel
  |         Set<CostItem> costItems = calculateInstallationCosts();
  |         budgetOverview.setCostItems(costItems);
  | 
  |         return budgetOverview;
  |     
  |     }
  | 
  |     // some functions
  | }

and here is the class BudgetOverview

@Name("budgetOverview")
  | @Scope(ScopeType.CONVERSATION)
  | public class BudgetOverview{
  | 
  |     // some attributes
  | 
  |     // the datamodel
  |     @Datamodel
  |     public Set<CostItem> costitems;
  | 
  |     // getter and setter methods
  | }


So the problem is: 
In the view I can display all attributes from the budgetOverview except the datamodel selectitems. But i can e.g. display the size of the datamodel. So it is set properly just not outjected.
If i change the code and outject the datamodel in the CalculationManager class and initialize it via a getter method from the BudgetOberview it works fine.

I have no clue if i made a mistake or the overall concept of outjecting an object that outjects a datamodel doesnt work. 

Help would be great. and i hope you could follow this explanation.

thanks,
hasc

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