Thanks Josh and Thiago! Here is what I ended up with in case it helps anyone
else:
public FieldValidator getFieldValidator() {
String validationString = "none";
if(attributeDefinition.isRequired()) {
validationString = "required";
}
Field f = null;
//isUseTextField just tests to see if the attribute is defined to be
// over 50 chars or not
if(isUseTextField()) {
f =
(Field)componentResources.getEmbeddedComponent("attributetextfield");
} else {
f =
(Field)componentResources.getEmbeddedComponent("attributetextarea");
}
//source is FieldValidatorSource
return source.createValidator(f, validationString, null);
}
Thanks again!
-----Original Message-----
From: "Thiago H. de Paula Figueiredo" <thiag...@gmail.com>
Sent: Tuesday, May 24, 2011 9:52pm
To: "Tapestry users" <users@tapestry.apache.org>
Subject: Re: dynamic validation for required / not required
On Tue, 24 May 2011 19:13:31 -0300, <jackkuros...@w9z.org> wrote:
>> How do you generate your fields?
>
> Each event has an ordered list of attribute definitions. When someone
> registers for the event, the page loops through the list of attributes.
> If the attribute definition says it is to be a short field, it renders
> as a textField. If it is long, it renders as a text area. Multiple
> people can be registered at the same time, so this loop is in another
> loop that executes once for each attendee.
In this case, you have exactly one TextArea instance and one TextField
instance, regardless of how many times you render them inside a loop. Give
each one a t:id and use @InjectComponent to get them. All
Tapestry-provided form field components are Field implementations, so you
can use them in FormValidatorSource methods.
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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