[jboss-user] [JBoss Seam] - Re: DataModelSelection and Outjection confusion

[gavin.king@jboss.com]

I doubt that this is the problem, but note that the combination of @DataModel and @Observer on the same method is very, very wierd and probably nonsensical.

This makes more sense:

@Stateful
  | @Scope(SESSION)
  | @Name("dataSourceView")
  | @LoggedIn
  | public class DataSourceViewAction implements DataSourceView, Serializable
  | {
  |    ...   
  | 
  |    @In(scope=SESSION, required=true)
  |    private DataSource dataSource;
  |    
  |    @DataModelSelection(value="dataFields")
  |    @Out(scope=SESSION, required=false)
  |    private DataField dataField;
  | 
  |    @DataModel
  |    private List<DataField>dataFields;
  |    
  |    @Observer("selectDataSource")
  |    public void initDataFields()
  |    {
  |       log.info("in new getDataFields for #0", dataSource == null ? "null" : dataSource.getName());
  |       dataFields = dataSource.getDataFields();
  |    }
  |    
  |    public String selectDataField()
  |    {
  |       log.info("get dataField: #0", dataField.getName());
  |       return "dataviewer";
  |    }
  |    
  |    @Destroy @Remove
  |    public void destroy() {}
  |    
  | }


Ah hah! Now I see the problem: you raise the event from the method that actually initializes the value of the dataSource context variable, which means is has not yet been outjected at that point.

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