Re: Want to reject all-whitespace text input.

[Frank Burns]

Where "empty" includes fields that may be full of whitespace characters. 
That explains the "strange rule" I was asking about in my original question.

----- Original Message ----- 
From: "Joe Germuska" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Sunday, November 21, 2004 6:45 PM
Subject: Re: Want to reject all-whitespace text input.


At 1:33 PM -0500 11/21/04, Erik Weber wrote:
I think what you want is to leave out the "required" validator, but
to use the "minlength" validator with a value of 1. That should
allow a blank, but not a String shorter than 1, and whitespace
should be left out in the measurement. (I'm not positive as I don't
have the source).
I think Erik's right.  In any case, you won't get the mask validator
to do it, since it only checks non-empty fields:
-------
from o.a.s.validator.FieldChecks:
    public static boolean validateMask(Object bean,
                                       ValidatorAction va, Field field,
                                       ActionMessages errors,
                                       HttpServletRequest request) {
        String mask = field.getVarValue("mask");
        String value = null;
        if (isString(bean)) {
            value = (String) bean;
        } else {
            value = ValidatorUtils.getValueAsString(bean, 
field.getProperty());
        }

        try {
            if (!GenericValidator.isBlankOrNull(value)
                && !GenericValidator.matchRegexp(value, mask)) {
                errors.add(
                    field.getKey(),
                    Resources.getActionMessage(request, va, field));
                return false;
            } else {
                return true;
            }
        } catch (Exception e) {
            log.error(e.getMessage(), e);
        }
        return true;
    }
-------
--
Joe Germuska
[EMAIL PROTECTED]
http://blog.germuska.com
"Narrow minds are weapons made for mass destruction"  -The Ex 

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