I think you can Check the "tapestry.js" file, it will give you a lot of exemples of how to register a new validation method.
I think you only have to contribute to the Tapestry.validator object adding your own method using the "addValidator" method on Tapestry object. So you have to add your own Js file that will do the job. But I didn't test it... -----Message d'origine----- De : Angelo Chen [mailto:[EMAIL PROTECTED] Envoyé : vendredi 21 mars 2008 15:32 À : users@tapestry.apache.org Objet : RE: T5: contributing a validator? Hi Christophe, Thanks, it works, here is a new validator, it's working but seems lacking something in javascript, always has this pop up: function Tapestry.validator.empty() does not exist for field 'name', any idea how to add this to the js? thanks. A.C. public class Empty extends AbstractValidator<Void, Object> { public Empty() { super(null, Object.class, "empty"); } public void validate(Field field, Void aVoid, MessageFormatter messageFormatter, Object o) throws ValidationException { String s = o.toString(); if (s == null || s.length() == 0) throw new ValidationException(buildMessage(messageFormatter, field)); } public void render(Field field, Void aVoid, MessageFormatter messageFormatter, MarkupWriter markupWriter, FormSupport formSupport) { formSupport.addValidation(field, "empty", buildMessage(messageFormatter, field), null); } private String buildMessage(MessageFormatter formatter, Field field) { return formatter.format(field.getLabel()); } } Cordenier Christophe wrote: > > Hello > > You have to specify a constraint : validate="require,uppercase=..." > > If you want to create a validator without any specific constraint (like > the required validator which describes itself as a constraint), use Void > for constraint type: > > -- View this message in context: http://www.nabble.com/T5%3A-contributing-a-validator--tp16194294p16198344.html Sent from the Tapestry - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Ce message et les pièces jointes sont confidentiels et réservés à l'usage exclusif de ses destinataires. Il peut également être protégé par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir immédiatement l'expéditeur et de le détruire. L'intégrité du message ne pouvant être assurée sur Internet, la responsabilité du groupe Atos Origin ne pourra être recherchée quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'expéditeur ne donne aucune garantie à cet égard et sa responsabilité ne saurait être recherchée pour tout dommage résultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Atos Origin group liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]