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https://issues.apache.org/jira/browse/TAP5-1290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Howard M. Lewis Ship moved TAPESTRY-2768 to TAP5-1290:
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              Project: Tapestry 5  (was: Tapestry)
                  Key: TAP5-1290  (was: TAPESTRY-2768)
    Affects Version/s:     (was: unspecified)
           Issue Type: Bug  (was: Improvement)
          Component/s:     (was: tapestry-core)

> Add required flag to @ActivationRequestParameter annotation
> -----------------------------------------------------------
>
>                 Key: TAP5-1290
>                 URL: https://issues.apache.org/jira/browse/TAP5-1290
>             Project: Tapestry 5
>          Issue Type: Bug
>         Environment: Tapestry 5.2.0 alpha
>            Reporter: Vjeran Marcinko
>
> It would be really nice to have "required" argument in 
> @ActivationRequestParameter so one doesn't have to check it manually before 
> page rendering begins.
> I guess many people such as me, who don't care about RESTful URLs, will find 
> @ActivationRequestParameter much easier way to pass render parameters than 
> standard activation context, not just because it offers naming and 
> optionality, but also because one have clean separation between parameter 
> setting process (through this annotation) and preprocessing logic needed for 
> some pages (placed in onActivate, such as security check or other mutli page 
> preprocesing logic; request filters is sometimes too cumbersome way to 
> achieve the same). Required flag would be nice addition to make it truly 
> top-level way to pass render params.

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