Remove variable from page context via Contexts.removeFromAll

[jbuechel]

I'm trying to remove desperately a variable from the page context via the Contexts.removeFromAllContexts() method, but it didn't work.
This is the code:

@Scope(ScopeType.PAGE)
@Name("personAction")
public class PersonActionImpl {

 @Logger
 Log log;

 @In(required = false)
 @Out(required = false)
 private Person personDataModelSelection;
...

 public void deletePerson() {
 log.debug("deletePerson() called");
 personService.removePerson();
 personDataModelManager.initializeModel();
 log.debug("personDataModelSelection: #0", Contexts
 .lookupInStatefulContexts("personDataModelSelection"));
 Contexts.removeFromAllContexts("personDataModelSelection");
 log.debug("personDataModelSelection: #0", Contexts
 .lookupInStatefulContexts("personDataModelSelection"));

 personDataModelSelection = null;
 }
...

Output:

17:31:25,460 DEBUG [PersonActionImpl] personDataModelSelection: [Person -> CoreId="99991234567812345678ABC123"; Firstname="Hansi 123"; Lastname="Meier123"]
17:31:25,460 DEBUG [PersonActionImpl] personDataModelSelection: [Person -> CoreId="99991234567812345678ABC123"; Firstname="Hansi 123"; Lastname="Meier123"]

Shouldn't it be removed at the 2nd output line?
Btw, it works if i declare the class in conversation scope..
I can't see what i'm doing wrong..

[jbuechel]

I still didn't figure it out.
So i do it using a redirect to the same view id depending on the called action:

<navigation from-action="#{personAction.deletePerson}">
 <redirect view-id="/modules/manageCatalogs/persons/main.xhtml" />
 </navigation>

[pmuir]

The page context is split over both the previous and the next request when you are in the INVOKE APPLICATION phase. You read from the previous page context and write (i.e. remove) from the next page context. So the above is totally expected.

[jbuechel]

Thanks for explanation, Pete.
It seems i'm quite not understanding it completely yet..

Does that mean, during the next request it won't be present anymore?

[pmuir]

Yes.

[pmuir]

n.b.

pageContext.set("foo", "bar");
assert !pageContext.contains("foo");

passes when you are in the INVOKE APPLICATION phase.