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POHow can I use method-parameter level validation with JSF 2.2?
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copied!<p>I have created a bean validator that I apply to my bean setter method. Instead of getting a JSF validation error, I get an exception raised. Is there a way to make this work, or I should go with a traditional JSF validator?</p> <pre><code>//Bean Method public void setGuestPrimaryEmail(@ValidEmail String email){ guest.getEmails().get(0).setValue(email); } //Validator interface @Target({ElementType.FIELD,ElementType.PARAMETER}) @Retention(RetentionPolicy.RUNTIME) @Constraint(validatedBy = EmailValidator.class) public @interface ValidEmail { String message() default "{invalid}"; Class<? extends Payload>[] payload() default {}; Class<?>[] groups() default {}; } //Validator impl public class EmailValidator implements ConstraintValidator<ValidEmail, String> { private Pattern p; @Override public void initialize(ValidEmail constraintAnnotation) { p = java.util.regex.Pattern .compile("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"); } @Override public boolean isValid(String value, ConstraintValidatorContext context) { if (DothatUtils.isEmpty(value)) { return true; } boolean invalid = !p.matcher(value).matches(); if (invalid) return false; return true; } } </code></pre> <p>Exception: </p> <pre><code>2013-11-30T20:58:41.747+0000|SEVERE: javax.faces.component.UpdateModelException: javax.el.ELException: /index.xhtml @144,86 value="....": javax.validation.ConstraintViolationException: 1 constraint violation(s) occurred during method validation. </code></pre> <p>Note: I am using GF4 with JSF 2.2.4. If I place my custom annotation on the field, it works as expected.</p>

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