String outcome will cause lifecycle phase skip - Myfaces-specific ?

[quest26 <sr...@infosys.com>]

Hello,

I saw this in myfaces wiki..
If the action method is of a form that returns a navigation string, then: 

Any non-null string will cause the lifecycle to proceed directly to the
render-response phase, meaning that validation of any non-immediate input
components never occurs. This is why an immediate command component is a
natural way to implement "cancel" operations; it works even when there are
input fields in the page that would fail validation. Of course as a result,
there is never any update-model phase, ie data entered by the user is
discarded. 

A null return value causes processing to continue as normal, ie
non-immediate components are validated then update-model is executed (if no
validation errors occurred). 

Is this behavior specific to myfaces or is required by the jsf spec (so that
all implementations should have this behavior) ?

Thanks a lot.

P.S: I am new to jsf so kindly excuse errors :)
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Re: String outcome will cause lifecycle phase skip - Myfaces-specific ?

[Martin Marinschek <ma...@gmail.com>]

This is implementing the spec.

regards,

Martin

On Dec 28, 2007 1:59 PM, quest26 <sr...@infosys.com> wrote:

>
> Hello,
>
> I saw this in myfaces wiki..
> If the action method is of a form that returns a navigation string, then:
>
> Any non-null string will cause the lifecycle to proceed directly to the
> render-response phase, meaning that validation of any non-immediate input
> components never occurs. This is why an immediate command component is a
> natural way to implement "cancel" operations; it works even when there are
> input fields in the page that would fail validation. Of course as a
> result,
> there is never any update-model phase, ie data entered by the user is
> discarded.
>
> A null return value causes processing to continue as normal, ie
> non-immediate components are validated then update-model is executed (if
> no
> validation errors occurred).
>
> Is this behavior specific to myfaces or is required by the jsf spec (so
> that
> all implementations should have this behavior) ?
>
> Thanks a lot.
>
> P.S: I am new to jsf so kindly excuse errors :)
> --
> View this message in context:
> http://www.nabble.com/String-outcome-will-cause-lifecycle-phase-skip---Myfaces-specific---tp14525536p14525536.html
> Sent from the MyFaces - Users mailing list archive at Nabble.com.
>
>


-- 

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