My sfsb is annotated like that:
@Stateful
| @Name("messageManager")
| @Conversational(ifNotBegunOutcome="messageBoxes")
| public class MessageManagerBean extends ListManagerBean implements
MessageManager {
| ...
| }
I have the following scenario:
(The conversation has already begun before the page showing the list is
displayed to the user).
| @Override
| @DataModel(value="msglist")
| public List getList() {
| return list;
| }
|
| @DataModelSelection(value="msglist")
| @Out(required=false) @In(required=false, create=true)
| private FMessage message;
|
| public void select(ActionEvent event) {
| message.setGelesen(true);
| message = em.merge(message);
| }
|
|
The page displaying the message uses
#{message}
and everything works well.
But if I remove
@Out(required=false) @In(required=false, create=true)
from the DatamodelSelection and instead use
#{messageManager.message}
in the message display page, something goes wrong such that I get a
NullpointerException while the Facelets debug mechanism calls toString() on my
message.
Why aren't the two approaches equal?
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