Thank you David, that was the problem... it now works just fine.
-----Original Message-----
From: David Winterfeldt [mailto:[EMAIL PROTECTED]]
Sent: Friday, March 22, 2002 11:19 AM
To: Struts Users Mailing List
Subject: Re: Validating an ActionForm "conditionnally"
If you have a form nested like this, it probably
doesn't have the servlet reference set on it.
ServletContext application =
getServlet().getServletContext();
Otherwise what you are doing should be fine.
David
--- "Sobkowski, Andrej" <[EMAIL PROTECTED]>
wrote:
> Hello,
>
> I've been using the Struts Validator (nightly build
> of November) with no
> problems for a few months (great work!).
>
> Now I need to call the validation method of a
> specific "nested form" based
> on a condition:
>
> ParentForm
> +useChild: boolean
> +getChildForm:ChildForm
>
> If useChild returns true, I want to call the
> validate(mapping, request) of
> ChildForm (ie the nested form).
>
> I thought that the validator only needed the
> "mapping.getAttribute()" (name
> of the ActionForm) to perform the validation so I
> tried with the following
> (ugly, I know):
>
> if (parentForm.useChild()) {
> ActionMapping newMap = new ActionMapping();
> newMap.setAttribute("childForm");
> ActionErrors errors =
> parentForm.getChildForm().validate(newMap,
> request);
> }
>
> The configuration is extremely basic:
> - In struts-config.xml:
> <form-bean name="childForm"
> type="com.company.ChildForm"/>
> - In validation.xml:
> <form name="childForm">
> ...
> </form>
>
> I'm getting a NullPointerException in the
> validator's code.
>
> What am I doing wrong? Is this a good way to handle
> the problem (I doubt
> it...)? Any suggestions?
>
> Thanks.
>
> Andrej
>
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