CommandButton subclass

[Dave <ja...@yahoo.com>]

For <commandButton>, its action listener and action method are executed in Invoke Application phase. I need to create a custom component that is a subclass of <commandButton>, but execute action listeners and action method in two different phases:
       Action listeners in ApplyRequestValue phase, and
       Action method in Invoke Application phase, 
   
  Is this possible?
  Some info on how to do this would be very helpful. Thanks!

		
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Re: CommandButton subclass

[Mike Kienenberger <mk...@gmail.com>]

On 3/18/06, Dave <ja...@yahoo.com> wrote:
> HtmlCommandButton is a subclass of UICommand.  Should I subclass
> HtmlCommandButton and override queueEvent(), like

Yes, I think that should work.   Give it a try and see.


> I am new to creating custom components. How to set it up so that I can use
> it in JSP? like tag, where to put the tag description, etc.

For JSP, to create a new component, you would need to specify it in
your faces-config.xml file and in a tld file.   I'm not really very
knowledgeable about JSP, though, as I use facelets instead.   You
could just copy what's in there for HtmlCommandButton.

You might also be able to replace the component-type class for
HtmlCommandButton directly in the faces-config file.   Maybe you
wouldn't need to create a new component definition if you're willing
to use your new component everywhere you currently using an
HtmlCommandButton.

-Mike

Re: CommandButton subclass

[Dave <ja...@yahoo.com>]

UICommand.java has:
   
      public void queueEvent(FacesEvent event)
    {
        if (event != null && event instanceof ActionEvent)
        {
            if (isImmediate())
            {
                event.setPhaseId(PhaseId.APPLY_REQUEST_VALUES);
            }
            else
            {
                event.setPhaseId(PhaseId.INVOKE_APPLICATION);
            }
        }
        super.queueEvent(event);
    }

  HtmlCommandButton is a subclass of UICommand.  Should I subclass HtmlCommandButton and override queueEvent(), like
   
  class MyHtmlCommandButton extends HtmlCommandButton {
      public void queueEvent(FacesEvent event)
    {
        if (event != null && event instanceof ActionEvent)
        {
             event.setPhaseId(PhaseId.APPLY_REQUEST_VALUES);
         }
        super.queueEvent(event);
    }

  }
   
  immediate is not supported. Event phaseId is set to APPLY_REQUEST_VALUES.
   
  I am new to creating custom components. How to set it up so that I can use it in JSP? like tag, where to put the tag description, etc.
   
  Thanks for help.
  

Mike Kienenberger <mk...@gmail.com> wrote:
  Yes, this should be possible. I can't remember if the code that
determines the phase is in the component (Probably UICommand) or in
the renderer. It may be as simple as providing an alternate
renderer.

On 3/18/06, Dave wrote:
>
> For , its action listener and action method are executed in
> Invoke Application phase. I need to create a custom component that is a
> subclass of , but execute action listeners and action method
> in two different phases:
> Action listeners in ApplyRequestValue phase, and
> Action method in Invoke Application phase,
>
> Is this possible?
> Some info on how to do this would be very helpful. Thanks!
>
>
> ________________________________
> Brings words and photos together (easily) with
> PhotoMail - it's free and works with Yahoo! Mail.
>
>


		
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Re: CommandButton subclass

[Mike Kienenberger <mk...@gmail.com>]

Yes, this should be possible.  I can't remember if the code that
determines the phase is in the component (Probably UICommand) or in
the renderer.   It may be as simple as providing an alternate
renderer.

On 3/18/06, Dave <ja...@yahoo.com> wrote:
>
> For <commandButton>, its action listener and action method are executed in
> Invoke Application phase. I need to create a custom component that is a
> subclass of <commandButton>, but execute action listeners and action method
> in two different phases:
>      Action listeners in ApplyRequestValue phase, and
>      Action method in Invoke Application phase,
>
> Is this possible?
> Some info on how to do this would be very helpful. Thanks!
>
>
>  ________________________________
> Brings words and photos together (easily) with
>  PhotoMail - it's free and works with Yahoo! Mail.
>
>