[
https://issues.apache.org/jira/browse/TAP5-320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12645584#action_12645584
]
Howard M. Lewis Ship commented on TAP5-320:
-------------------------------------------
The intent of flash is to store a value long enough for it to be rendered on
the same page in the next (render) request.
So, I understand that it's not doing what you want, and there is some ambiguity
in how it operates ... but it does correctly address the use case it was
created for.
> Flash Persist Variables might be cleared too aggressively
> ---------------------------------------------------------
>
> Key: TAP5-320
> URL: https://issues.apache.org/jira/browse/TAP5-320
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.0.16
> Reporter: Fernando
>
> So yes it looks like the Flash variables of a Page are scrubbed when the page
> is removed from the cache, no matter if it's rendered or not. The stack
> trace is below.
> I know that my example might be a bit extreme, but here are some other
> usecases that should be affected as well:
> -- Page Rendering
> 1) render PageA (set flash variable).
> 2) render PageB
> a) while rendering, it loads PageA for some reason
> (RequestPageCache.get, PageLink, ActionLink, etc)
> b) while loading PageA, its flash variables are cleared
> 3) render PageA (flash variable is null)
> -- Ajax
> 1) render PageA (set flash variable).
> 2) Ajax callback to app
> a) either hitting PageA directly, or hitting PageB that
> refers to PageA in some way
> ( PageLink, ActionLink, RequestPageCache.get )
> b) while loading PageA, its flash variables are cleared
> 3) render PageA (flash variable is null)
> STACK TRACE:
> showing that flash variables are cleared from pages once they are loaded, not
> once they are rendered, so it can be cleared way before we have a change to
> render it.
> setAttribute( flash:core/Start:status.cheerform:defaultTracker, null )
> at
> org.apache.tapestry5.internal.services.SessionImpl.setAttribute(SessionImpl.java:50)
> at
> org.apache.tapestry5.internal.services.FlashPersistentFieldStrategy.didReadChange(FlashPersistentFieldStrategy.java:41)
> at
> org.apache.tapestry5.internal.services.AbstractSessionPersistentFieldStrategy.gatherFieldChanges(AbstractSessionPersistentFieldStrategy.java:65)
> at
> org.apache.tapestry5.internal.services.PersistentFieldManagerImpl.gatherChanges(PersistentFieldManagerImpl.java:65)
> at
> $PersistentFieldManager_11d5412d051.gatherChanges($PersistentFieldManager_11d5412d051.java)
> at
> org.apache.tapestry5.internal.structure.PageImpl.getFieldChange(PageImpl.java:185)
> at
> org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.getFieldChange(InternalComponentResourcesImpl.java:111)
> at
> org.apache.tapestry5.internal.structure.InternalComponentResourcesImpl.hasFieldChange(InternalComponentResourcesImpl.java:121)
> at
> com.protrade.fanwars.base.pages.Start.containingPageDidAttach(Start.java)
> at
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl$2.run(ComponentPageElementImpl.java:80)
> at
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:912)
> at
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.containingPageDidAttach(ComponentPageElementImpl.java:726)
> at
> org.apache.tapestry5.internal.structure.PageImpl.attached(PageImpl.java:151)
> at
> org.apache.tapestry5.internal.services.RequestPageCacheImpl.get(RequestPageCacheImpl.java:55)
> at $RequestPageCache_11d5412d04b.get($RequestPageCache_11d5412d04b.java)
> at $RequestPageCache_11d5412d046.get($RequestPageCache_11d5412d046.java)
> at
> com.protrade.facebook.base.services.FbForceModeFilter.handle(FbForceModeFilter.java:57)
> (this is my PageRenderRequestFilter which cuts off page rendering)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
