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Posted to users@myfaces.apache.org by Damar Thapa <th...@gmail.com> on 2006/11/02 15:27:41 UTC

Help in writing Validator

Hi,

I have one <h:inputText> field that I would like to validate against
the availability of that entry in the database -- accept only if the
input text is in the database. Can somebody in list list give me some
pointers on this?

Thanks,

With regards,

Damar Thapa

Re: Help in writing Validator

Posted by Damar Thapa <th...@gmail.com>.

Hi Cagatay,

Thanks for your pointers. I will look at the options.

With regards,

Damar

On 11/2/06, Cagatay Civici <ca...@gmail.com> wrote:
> Hi,
>
> There are several choices, you may try to write a validator method in your
> managed bean and do a method binding to it via the validator attribute like;
>
> <h:inputText validator="#{beanname.validatormethod }" />
>
> public void validateCode(FacesContext facesContext,  UIComponent component,
> Object value) {
>            //throw new ValidationException if you think value is not valid
> }
>
> Also for better reusing, you can write your own validator and bind it to the
> inputText by the <f:validator />
>
> http://publib.boulder.ibm.com/infocenter/radhelp/v6r0m1/index.jsp?topic=/com.ibm.etools.jsf.doc/topics/tjsfcrvalidator.html
>
> In addition you can create it's own tag for your validator like in;
>
> http://www.jsffaq.com/Wiki.jsp?page=HowToCreateTheCustomValidator
>
> Cagatay
>
>
> On 11/2/06, Damar Thapa <th...@gmail.com> wrote:
> > Hi,
> >
> > I have one <h:inputText> field that I would like to validate against
> > the availability of that entry in the database -- accept only if the
> > input text is in the database. Can somebody in list list give me some
> > pointers on this?
> >
> > Thanks,
> >
> > With regards,
> >
> > Damar Thapa
> >
>
>


-- 
With regards,

Damar Thapa

Re: Help in writing Validator

Posted by Cagatay Civici <ca...@gmail.com>.

Hi,

There are several choices, you may try to write a validator method in your
managed bean and do a method binding to it via the validator attribute like;

<h:inputText validator="#{beanname.validatormethod}" />

public void validateCode(FacesContext facesContext,  UIComponent component,
Object value) {
           //throw new ValidationException if you think value is not valid
}

Also for better reusing, you can write your own validator and bind it to the
inputText by the <f:validator />

http://publib.boulder.ibm.com/infocenter/radhelp/v6r0m1/index.jsp?topic=/com.ibm.etools.jsf.doc/topics/tjsfcrvalidator.html

In addition you can create it's own tag for your validator like in;

http://www.jsffaq.com/Wiki.jsp?page=HowToCreateTheCustomValidator

Cagatay

On 11/2/06, Damar Thapa <th...@gmail.com> wrote:
>
> Hi,
>
> I have one <h:inputText> field that I would like to validate against
> the availability of that entry in the database -- accept only if the
> input text is in the database. Can somebody in list list give me some
> pointers on this?
>
> Thanks,
>
> With regards,
>
> Damar Thapa
>