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From David Delbecq <delbd+jaka...@oma.be>
Subject Re: Button must be clicked once before it could actually do something
Date Mon, 20 Aug 2007 12:22:07 GMT
And no session timeout between load page and click button?
En l'instant précis du 20/08/07 14:20, Fan Shao s'exprimait en ces termes:
> No message is shown by <h:messages/>.
>
> It seems it just refreshed the page when I clicked the button. Everything
> was reset. I know the http request was correctly sent, because it worked
> when I "refresh" the page using the browser's "refresh" button.
>
>
>
> David Delbecq-2 wrote:
>   
>> no informations provided with <h:messages/> ??
>> En l'instant précis du 20/08/07 13:57, Fan Shao s'exprimait en ces termes:
>>     
>>> Thanks David, let me put it this way:
>>>
>>> reset server -> load page (Page A) --> click button -->  Show A again
-->
>>> click button again --> show B correctly
>>>
>>> Cheers!
>>>
>>> Fan
>>>
>>>
>>>
>>> David Delbecq-2 wrote:
>>>   
>>>       
>>>> From what you say, i think what happens is
>>>>
>>>> load page (Page A) --> reset server -> click button -->  Show A
again
>>>>
>>>> Am i wrong about the when server reset occurs?
>>>>
>>>>
>>>> En l'instant précis du 20/08/07 12:40, Fan Shao s'exprimait en ces
>>>> termes:
>>>>     
>>>>         
>>>>> I thought the view has been rendered once before the button is clicked.
>>>>>
>>>>> My expected process is:
>>>>>
>>>>> load page (Page A) --> click button --> show another page({Page
B)
>>>>>
>>>>> So, when the Page A is loaded, the view of this page is initialized,
I
>>>>> suppose? Then I click the button. At this point, the view has existed
?
>>>>>
>>>>> The actual process is (from user's perspective):
>>>>>
>>>>> load page(Page A) --> click button --> Page A reset and loaded
again
>>>>> -->
>>>>> click button (again) --> form submitted and another page shown(Page
B).
>>>>>
>>>>> Cheers,
>>>>>
>>>>> Fan
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> David Delbecq-2 wrote:
>>>>>   
>>>>>       
>>>>>           
>>>>>> Extract from http://www.ibm.com/developerworks/library/j-jsf2/
>>>>>> ---
>>>>>> JSF lifecycle:
>>>>>>
>>>>>>    1. Restore view
>>>>>>    2. Apply request values; process events
>>>>>>    3. Process validations; process events
>>>>>>    4. Update model values; process events
>>>>>>    5. Invoke application; process events
>>>>>>    6. Render response
>>>>>>
>>>>>> The JSF framework controller uses the view ID to look up the
>>>>>> components
>>>>>> for the current view. If the view doesn't already exist, the JSF
>>>>>> controller creates it. If the view already exists, the JSF controller
>>>>>> uses it. The view contains all the GUI components.
>>>>>> This phase of the lifecycle presents three view instances: new view,
>>>>>> initial view, and postback, with each one being handled differently.
>>>>>> In the case of an /initial view/ (the first time a page is loaded),
>>>>>> JSF
>>>>>> creates an empty view. The empty view will be populated as the user
>>>>>> causes events to occur. From an initial view, JSF advances directly
to
>>>>>> the render response phase.
>>>>>> ---
>>>>>>
>>>>>> In your case, after your server restart, all views have been removed.
>>>>>> That mean in first step you get a "initial view" that is wired to
an
>>>>>> immediate rendering. (Command and values you submit is thus ignored).
>>>>>>
>>>>>> One way around this, is to have your J2EE container
>>>>>> (tomcat/JBoss/Other)
>>>>>> preserve user sessions between restarts using serialization. That
way,
>>>>>> view are restored, because views are stored in user sessions.
>>>>>>
>>>>>>
>>>>>> En l'instant précis du 20/08/07 11:48, Fan Shao s'exprimait en ces
>>>>>> termes:
>>>>>>     
>>>>>>         
>>>>>>             
>>>>>>> Hi there,
>>>>>>>
>>>>>>> I've written a JSF page using Facelets template. I have a form
in the
>>>>>>> page
>>>>>>> and a button. Every time I restarted the webapp, the first time
I
>>>>>>> click
>>>>>>> the
>>>>>>> button it just refreshes the page and resets all the input fields.
>>>>>>> After
>>>>>>> that the button works normally with all the fields correctly
>>>>>>> submitted.
>>>>>>>
>>>>>>> This means I have to click the button once before I can do any
work
>>>>>>> everytime the server is restarted.
>>>>>>>
>>>>>>> Anyone has any idea about this problem?
>>>>>>>   
>>>>>>>       
>>>>>>>           
>>>>>>>               
>>>>>> -- 
>>>>>> http://www.noooxml.org/
>>>>>>
>>>>>>
>>>>>>
>>>>>>     
>>>>>>         
>>>>>>             
>>>>>   
>>>>>       
>>>>>           
>>>> -- 
>>>> http://www.noooxml.org/
>>>>
>>>>
>>>>
>>>>     
>>>>         
>>>   
>>>       
>> -- 
>> http://www.noooxml.org/
>>
>>
>>
>>     
>
>   


-- 
http://www.noooxml.org/


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