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https://issues.apache.org/jira/browse/MYFACES-4043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15250932#comment-15250932
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Leonardo Uribe commented on MYFACES-4043:
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This topic has been studied a lot years ago. See: PostAddToViewEvent publishing
conditions
http://markmail.org/message/37yvgcko7tgfbf4w
In resume, the intention behind PostAddToViewEvent is to add components or
activate some actions after the component tree is built. When partial state
saving is enabled, since it is necessary to create the "initial state" and then
apply the "delta state", PostAddToViewEvent is called every time the component
tree is built, and that means every request. But note that if the component is
correctly implemented, it only should see one call over its lifetime.
When PSS is disabled, the component tree is restored fully, which means
facelets algorithm does not need to create the initial state, and
PostAddToViewEvent is not invoked.
I think the bug is related to primefaces. Probably the component you mention is
added using PostAddToViewEvent, but it is a transient component, so it is not
saved later, and when MyFaces restore the tree, the component is not restored
because the component information was not saved.
I'll close this issue as invalid, because I'm 101% sure there is no problem in
that part (there are some ACID junit tests already in MyFaces that test
precisely this point) .
> PostAddToViewEvent in RENDER_RESPONSE not fired on postback requests when
> partial-state-saving is turned off
> ------------------------------------------------------------------------------------------------------------
>
> Key: MYFACES-4043
> URL: https://issues.apache.org/jira/browse/MYFACES-4043
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 2.2.9
> Environment: OS: Windows 10
> IDE: Intellij
> Server: Tomcat 8.0.30/Wildfly 10
> JSF-lib: Primefaces 5.3
> Reporter: Thomas Herzog
>
> We use priemfaces growl which is an component where message can be displayed.
> This component is marked with the interface AutoUpdatable, which means that
> these components do not need to be included in response update ids explicitly
> and can be added to the response automatically. This happens in the class
> *org.primefaces.event.AutoUpdateComponentListener* where a *SystemEvent* is
> observed. On postback request the growl will be added to the response update
> ids if configured to do so.
> The problem is, that this listener is only called ones on initial get request
> and not on the following postback request if partial-state-saving is turned
> off. If partial-state-saving is turned on, then the listener gets called on
> postback request too.
> It seems that the PostAddToViewEvent is not fired on postback request if
> PartialStateSaving is turned off but will be fired if turned on.
> See the following link for an running example:
> https://github.com/Curecomp/myfaces-issues/tree/master/2.2.9/disabled_psv_post_add_view_event_not_fired
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