-----Message d'origine-----
De : Stephan Windmüller [mailto:stephan.windmuel...@cs.tu-dortmund.de]
Envoyé : mercredi 22 juillet 2009 10:50
À : Tapestry users
Objet : Re: Passing data to the same page - Understanding
PersistanceContext.FLASH
De Saint Steban Emmanuel wrote:
> PersistanceContext.FLASH is storing the object for only one time.
> The data will be deleted after the first access.
Okay, but what is meant by "first access"? Even writing the data with a
debug logger? Or after the onActivate-method is finished? Is there a way
to keep the data in the page and pass it with the next request?
As says in the Tapestry documentation :
http://tapestry.apache.org/tapestry5/guide/persist.html
flash strategy
The flash strategy stores information in the session as well, just for not very
long. Values are stored into the session, but then deleted from the session as
they are first used to restore a page's state.
The flash is typically used to store temporary messages that should only be
displayed to the user once.
To keep data in the session just use @Persist by default is session persist. If
you want to force session use @Persist("session")
> Use just @Persist (or if you want to access in all page of your
> application use @ApplicationState
This would break the use of multiple tabs, because I would only have one
store for many pages.
For one store for many page use @ApplicationState (it is store in the session)
But you can use it in different page.
In each page, juste use
@ApplicationState
private type var;
Juste keep in mind that you can use a type only one time. Tapestry use the type
to differences the different variable, not the name.
In exemple : You cant have to variable with the same type String. The two
variable will be the same.
Emmanuel
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